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BUF - DEN

$59 Find cheap flights from Buffalo to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Denver departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
sáb 6/15
sáb 6/22

Search hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Denver, as well as popular online travel agencies
In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

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Cheap flight deals from Buffalo to Denver (BUF-DEN)

 
These are the cheapest deals for flights from Buffalo to Denver currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Buffalo to Denver

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Buffalo to Denver.

Recent one-way flight deals from Buffalo to Denver

Only flying one-way? Below are some of the best one-way flight deals from Buffalo to Denver found on KAYAK recently.

Recent last minute flight deals from Buffalo to Denver

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Buffalo to Denver.

Recent direct flight deals from Buffalo to Denver

The latest deals for direct flights from Buffalo to Denver so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Buffalo to Denver

Find recent round-trip train or bus tickets from Buffalo to Denver.

All round-trip flight deals to Denver

The cheapest plane tickets to Denver found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:46 pm - 8:15 pmBUF-DEN
3h 29mnonstop
12:38 pm - 5:46 pmDEN-BUF
3h 08mnonstop
$121Frontier
Find Deal
sáb, set 21 - sáb, set 28
10:56 pm - 12:52 amBUF-DEN
3h 56mnonstop
12:55 pm - 6:07 pmDEN-BUF
3h 12mnonstop
$148Frontier
Find Deal
qua, mai 29 - sex, mai 31
6:15 pm - 8:00 pmBUF-DEN
3h 45mnonstop
4:37 pm - 9:52 pmDEN-BUF
3h 15mnonstop
$178Frontier
Find Deal
sex, jun 14 - sáb, jun 22
6:55 am - 11:32 amBUF-DEN
6h 37m1 stop
1:00 pm - 11:06 pmDEN-BUF
8h 06m1 stop
$214JetBlue
Find Deal
ter, ago 27 - qua, set 4
5:51 pm - 9:56 pmBUF-DEN
6h 05m1 stop
11:59 pm - 8:51 amDEN-BUF
6h 52m1 stop
$225American Airlines
Find Deal
qui, set 12 - qua, set 18
6:06 am - 11:15 amBUF-DEN
7h 09m1 stop
11:59 pm - 9:23 amDEN-BUF
7h 24m1 stop
$227American Airlines
Find Deal
ter, jun 11 - sáb, jun 15
2:20 pm - 8:32 pmBUF-DEN
8h 12m1 stop
11:40 am - 6:18 pmDEN-BUF
4h 38m1 stop
$228Delta
Find Deal
dom, set 22 - qua, set 25
2:20 pm - 8:32 pmBUF-DEN
8h 12m1 stop
11:59 pm - 9:20 amDEN-BUF
7h 21m1 stop
$253Delta
Find Deal
dom, set 22 - seg, set 30
6:00 pm - 10:52 pmBUF-DEN
6h 52m1 stop
11:59 pm - 10:03 amDEN-BUF
8h 04m1 stop
$288United Airlines
Find Deal
sex, set 20 - ter, out 1
4:00 pm - 11:06 pmBUF-DEN
9h 06m1 stop
11:59 pm - 11:59 amDEN-BUF
10h 00m1 stop
$302JetBlue
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sex, set 20 - qui, set 26
6:52 pm - 8:37 pmBUF-DEN
3h 45mnonstop
$59Frontier
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qua, jun 12
10:56 pm - 12:52 amBUF-DEN
3h 56mnonstop
$60Frontier
Find Deal
qua, mai 22
5:52 pm - 7:37 pmBUF-DEN
3h 45mnonstop
$89Frontier
Find Deal
seg, jun 10
5:45 am - 12:20 pmBUF-DEN
8h 35m1 stop
$107JetBlue
Find Deal
dom, set 1
1:51 pm - 7:37 pmBUF-DEN
7h 46m1 stop
$113American Airlines
Find Deal
sex, set 6
6:06 am - 11:15 amBUF-DEN
7h 09m1 stop
$114American Airlines
Find Deal
ter, jun 11
6:55 am - 11:32 amBUF-DEN
6h 37m1 stop
$136JetBlue
Find Deal
ter, jul 16
6:03 pm - 10:52 pmBUF-DEN
6h 49m1 stop
$144United Airlines
Find Deal
qua, jul 10
10:15 am - 4:49 pmBUF-DEN
8h 34m1 stop
$196Delta
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qua, jul 3
7:59 pm - 9:00 amBUF-DEN
15h 01m2 stops
$253United Airlines
Find Deal
ter, jun 11
6:57 pm - 10:17 amBUF-DEN
17h 20m1 stop
12:50 pm - 6:02 pmDEN-BUF
3h 12mnonstop
$208Frontier
Find Deal
ter, mai 21 - sáb, mai 25
6:57 pm - 10:17 amBUF-DEN
17h 20m1 stop
11:59 pm - 6:07 pmDEN-BUF
16h 08m1 stop
$318Frontier
Find Deal
ter, mai 21 - sáb, mai 25
3:01 pm - 10:45 pmBUF-DEN
9h 44m1 stop
12:50 pm - 6:02 pmDEN-BUF
3h 12mnonstop
$326Frontier
Find Deal
sex, mai 17 - sáb, mai 25
3:01 pm - 10:45 pmBUF-DEN
9h 44m1 stop
12:07 am - 7:35 pmDEN-BUF
17h 28m1 stop
$338Frontier
Find Deal
sex, mai 17 - sáb, mai 18
5:28 am - 10:28 amBUF-DEN
7h 00m1 stop
12:00 pm - 11:56 pmDEN-BUF
9h 56m1 stop
$463Delta
Find Deal
sáb, mai 18 - ter, mai 21
6:00 am - 1:47 pmBUF-DEN
9h 47m2 stops
5:59 am - 4:03 pmDEN-BUF
8h 04m1 stop
$467American Airlines
Find Deal
sáb, mai 18 - qui, mai 23
5:26 pm - 11:06 pmBUF-DEN
7h 40m1 stop
2:47 pm - 12:32 amDEN-BUF
7h 45m2 stops
$513American Airlines
Find Deal
sex, mai 17 - sáb, mai 25
7:00 am - 10:35 amBUF-DEN
5h 35m1 stop
11:20 am - 9:01 pmDEN-BUF
7h 41m1 stop
$517United Airlines
Find Deal
sex, mai 17 - qua, mai 22
7:00 am - 10:35 amBUF-DEN
5h 35m1 stop
3:19 pm - 11:59 pmDEN-BUF
6h 40m1 stop
$520United Airlines
Find Deal
sex, mai 17 - qui, mai 23
12:01 pm - 6:11 pmBUF-DEN
8h 10m1 stop
12:30 am - 10:56 amDEN-BUF
8h 26m1 stop
$584Delta
Find Deal
sex, mai 17 - sáb, mai 18
6:46 pm - 8:15 pmBUF-DEN
3h 29mnonstop
12:38 pm - 5:46 pmDEN-BUF
3h 08mnonstop
$121Frontier
Find Deal
sáb, set 21 - sáb, set 28
10:56 pm - 12:52 amBUF-DEN
3h 56mnonstop
12:55 pm - 6:07 pmDEN-BUF
3h 12mnonstop
$148Frontier
Find Deal
qua, mai 29 - sex, mai 31
10:56 pm - 12:52 amBUF-DEN
3h 56mnonstop
11:12 am - 4:25 pmDEN-BUF
3h 13mnonstop
$159Frontier
Find Deal
qua, mai 29 - seg, jun 3
6:15 pm - 8:00 pmBUF-DEN
3h 45mnonstop
11:39 am - 4:50 pmDEN-BUF
3h 11mnonstop
$178Frontier
Find Deal
sex, jun 7 - seg, jun 10
6:15 pm - 8:00 pmBUF-DEN
3h 45mnonstop
11:39 am - 4:50 pmDEN-BUF
3h 11mnonstop
$183Frontier
Find Deal
sex, jun 14 - seg, jun 17
6:15 pm - 8:00 pmBUF-DEN
3h 45mnonstop
11:39 am - 4:50 pmDEN-BUF
3h 11mnonstop
$189Frontier
Find Deal
sex, jun 28 - seg, jul 1
6:46 pm - 8:15 pmBUF-DEN
3h 29mnonstop
11:11 am - 4:20 pmDEN-BUF
3h 09mnonstop
$191Frontier
Find Deal
qua, set 18 - seg, set 23
6:48 pm - 8:21 pmBUF-DEN
3h 33mnonstop
12:15 pm - 5:27 pmDEN-BUF
3h 12mnonstop
$198Frontier
Find Deal
seg, jul 22 - qua, jul 31
6:46 pm - 8:15 pmBUF-DEN
3h 29mnonstop
11:11 am - 4:20 pmDEN-BUF
3h 09mnonstop
$199Frontier
Find Deal
sáb, set 21 - seg, set 23
6:46 pm - 8:15 pmBUF-DEN
3h 29mnonstop
12:38 pm - 5:46 pmDEN-BUF
3h 08mnonstop
$206Frontier
Find Deal
sáb, jul 13 - sex, jul 19

Flights from Buffalo to Denver - Travel Insights & Trends

Get data-powered insights and trends into flights from Buffalo to Denver to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Buffalo to Denver?

The average price of all flights from Buffalo to Denver clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Denver on a Tuesday and more expensive on a Sunday. On your return trip to Buffalo, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

What is the cheapest month to fly from Buffalo to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Buffalo to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Buffalo to Denver is April, where tickets cost $192 on average. On the other hand, the most expensive months are March and February, where the average cost of tickets is $377 and $368 respectively.

How far in advance should I book a flight from Buffalo to Denver?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Buffalo to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Buffalo to Denver, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 90 days before departure.

Which airlines provide the cheapest flights from Buffalo to Denver?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Denver from Buffalo were found on Frontier ($59) and JetBlue ($107), and the lowest round-trip tickets were found on Frontier ($121) and JetBlue ($214).

Which airlines fly non-stop between Buffalo and Denver?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Buffalo to Denver.
There are 2 airlines that fly nonstop from Buffalo to Denver. They are Frontier and Southwest. The cheapest airline for this route is Frontier, with the best one-way deal found costing $98. On average, the best prices for this route can be found at Frontier.

How many flights are there between Buffalo and Denver per day?

Each day, there are between 2 and 3 nonstop flights that take off from Buffalo and land in Denver, with an average flight time of 3h 34m. The most common departure time is 4:00 pm and most flights take off in the morning. Each week, there are 19 flights. The most frequent day of departure is Saturday, when 16% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between Buffalo and Denver?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Buffalo to Denver take?

The average nonstop flight takes 3h 28m, covering a distance of 1,355 miles.

What’s the earliest departure time from Buffalo to Denver?

Early birds can take the earliest flight from Buffalo at 6:10 am and will be landing in Denver at 7:45 am.

What’s the latest departure time from Buffalo to Denver?

If you prefer to fly at night, the latest flight from Buffalo to Denver jets off at 10:56 pm and lands at 12:52 am.

Good to know

Low season

November

High season

August

Cheapest flight

$59
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Buffalo to Denver

When to book flights from Buffalo to Denver

Are your dates flexible? Find out the best times to travel from Buffalo to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Buffalo to Denver

  • Where can I relax after arriving in Denver?

    Denver airport features several lounges where you can relax and unwind upon arrival. Some of the lounges are owned by different airlines, while others are owned by DEN airport. For the airline-owned lounges, you need to be a member of the airline or have special access to the lounge. You can enjoy a relaxation moment by visiting any spas available at the airport.

  • Can mothers nurse children at DEN?

    DEN airport features nursing rooms where mothers can nurse children comfortably. The nursing rooms are strategically located at the post-security center. The rooms are available on a 24/7 basis. The comfortable seats mitigate any strains while nursing your baby, not forgetting the wheelchair accessibility of the nursing rooms.

  • Are there complimentary services at BUF?

    Yes, there are several complimentary services at Buffalo airport which include locksmith services, jump-starting vehicle services, driving directions, and flat tire assistance, among others. The complimentary services are offered by different providers.

  • Can I charge my electric vehicle at BUF?

    Yes, BUF airport features different charging stations. There are three charging stations strategically located on Level 1. The electric vehicle charging spots are based on availability. It is advisable to check whether your electric vehicle is compatible with the chargers available. To access the charging spots, your car should be parked.

  • What is the cheapest flight from Buffalo to Denver?

    In the last 3 days, the lowest price for a flight from Buffalo to Denver was $59 for a one-way ticket and $121 for a round-trip.

  • Do I need a passport to fly between Buffalo and Denver?

    No

  • Which airports will I be using when flying from Buffalo to Denver?

    Buffalo and Denver are both served by 1 main airport. You will leave Buffalo from Buffalo and will be arriving at Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Buffalo to Denver?

    All the following airlines offer inflight Wi-Fi service on the Buffalo to Denver flight route: American Airlines, JetBlue, Air Canada, Delta, United Airlines, Sun Country Air, and Alaska Airlines.

  • Which aircraft models fly most regularly from Buffalo to Denver?

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the Buffalo to Denver flight route.

  • On which days can I fly direct from Buffalo to Denver?

    There are nonstop flights from Buffalo to Denver on a daily basis.

  • Which is the best airline for flights from Buffalo to Denver, Delta or JetBlue?

    The two airlines most popular with KAYAK users for flights from Buffalo to Denver are Delta and JetBlue. With an average price for the route of $289 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $280 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Buffalo to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Buffalo with another airline. Booking your flights between Buffalo and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Buffalo to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $94 or less one-way and $174 or less round-trip.
  • The wide array of parking lots at Buffalo Niagara International Airport (BUF) gives you the safety assurance of your parked vehicle while catching your flight to Denver. The parking lots are close to the terminal, which will ease your navigation in and out of the airport. There are different sign colors in the parking lots to distinguish the different types of parking. There are green signs representing preferred lots, red signs for hourly and daily lots, orange signs for long-term lots, and blue signs for economy parking lots.
  • Safety is paramount at BUF; hence anyone entering the premises must undergo thorough security checks. The checks are done to ensure nobody enters the airport premises with an explosive device or a weapon. For a smooth process, it is advisable to cooperate with the security personnel. If possible, arrive 2 or 3h before your flight.
  • At BUF airport, you can stream your favorite movies, hold video conferencing, or browse while waiting for your flight due to the free Wi-Fi connectivity available at the airport. Getting online is seamless as you only need to select the BUF free Wi-Fi network, launch your browser, and sign up for a Wi-Fi account to enjoy unlimited Internet access before catching your flight.
  • If your device’s battery runs low, there are charging poles in gates 4, 5, 7, 9, 10, 16, 18, 23, and 25. The lounge seating area features iPad charging arms. The BUF charging spots are available on a first-come, first-served basis.
  • Denver International Airport (DEN) authorities prohibit smoking on the premises. However, there are designated smoking spots located at the Jeppesen terminal. Smoking after clearing with the security and proceeding to your gate is prohibited.
See more tips

Prefer to fly non-stop from Buffalo to Denver?

Find which airlines fly direct from Buffalo to Denver Intl, which days they fly and book direct flights.

Nonstop departures

Buffalo to Denver Intl

Monday

Frontier, Southwest

Frontier, Southwest

Tuesday

Southwest

Southwest

Wednesday

Frontier, Southwest

Frontier, Southwest

Thursday

Southwest

Southwest

Friday

Frontier, Southwest

Frontier, Southwest

Saturday

Frontier, Southwest

Frontier, Southwest

Sunday

Southwest

Southwest

See more direct flights

Nonstop returns

Denver Intl to Buffalo

Monday

Frontier, Southwest

Frontier, Southwest

Tuesday

Southwest

Southwest

Wednesday

Frontier, Southwest

Frontier, Southwest

Thursday

Southwest

Southwest

Friday

Frontier, Southwest

Frontier, Southwest

Saturday

Frontier, Southwest

Frontier, Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 5 airlines serving from Buffalo to Denver

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10673 reviews
8.6Crew
7.9Comfort
7.4Food
8.0Entertainment
8.2Boarding
Airline reviews

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

6.0 GoodDan, Apr 2024LGA - DEN
Read more about Delta reviews

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Seat back monitors and outlets were dead and not working.

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

The flight was delayed but we got to our final destination.

Uncomfortable seats on 14 hour flight. Mediocre food. On time and great crew.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

We just spent $6000 on our first trip since pre COVID and we were stranded on the runway of our departing airport for 2 hours and 15 minutes while our layover was only an hour and a half. We were told by the pilot we were next for de-icing and then got bumped by 3 other planes. Pilot went on to say they only had one guy working the de-icing where they usually have at least 2. In Rochester. In the heart of winter. Someone missed a step and should be fired. I'm not done.

Everything went well with the flight. But one of the flight attendants had on inappropriate pants. She had on an old worn out pair of sweat pants. The back seam was unrivaled and should not have been worn for work. If I had not seen her in the airport with the standard type of luggage, I certainly would not have thought she was working for Delta. Not a good look at all for representation.

Great!! I haven’t had a bad experience with them.

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

Another horrible Jet Blue experience. This airline has suffered the biggest decline of all from best to worst. TVs didn’t work (again). internet was temperamental. Boarded late and couldn’t get organized to serve snacks.

I hate their constant delays! It’s as if I cannot confidently make plans for timing when I'm traveling with them. I slept through it, so all I can say is it was good.

There was no wheelchair or wheelchair escort at the gate..unacceptable

No WiFi No TV Bag of chips I guess it could be worse.

From bag drop to boarding, it was great. In-flight is a little different. The seats were a little uncomfortable for that long of a flight. The rest of the cabin crew except for Eva was wonderful. Eva was not friendly at all. I've had to personally encounter her twice in-flight. First time was when I had to go to the lavatory in the back of the plane, and since it was the first for me to board such tiny plane, I didn't know we were using the crew toilet. She was giving me an attitude while telling me where and how to open it since it's not the regular push to open type of door. The second one was when I had to throw trash then use the lavatory again. I asked where to throw them, and unfortunately she was the only crew in the back doodling on her phone, she had to point it out to me with an attitude then told me to wait on the carpet, which I understand because I didn't realize that, but she could have been nicer. After all, I'm a paying customer, and assisting a passenger who isn't knowledgeable about the aircraft is one of the things she's there for. The rest of the experience and crew from bag drop to in-flight were excellent except for her.

It took an hour to get my bag after landing. Not exaggerating

Boarding process on JetBlue is an absolute disgrace. I can’t believe they can’t figure out a better way to board everyone. They called people with disabilities, mosaic and group A all at once and it was a disaster

We flew halfway to our destination (NYC to Burlington) and turned around due to a mechanical issue (landing gear wouldn’t retract automatically). We turned back to JFK for JetBlue’s benefit as we landed safely at JFK and could've just as easily landed safely in Burlington on our Christmas Day flight. Instead the company directed the crew to return the plane to more easily service the aircraft. The passengers landed 3 1/2 hours later and JetBlue gave each passenger $50 for the trouble. Hardly fair compensation to be separated from family on Christmas Day.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Crew is way too many times on the intercom re explaining the same thing

Amazing comfortable chairs great snacks super friendly staff pilots did excellent job. Smooth sailing all the way. Definitely be flying United more.

We waited too long to get water while the plane was on the Tarmac awaiting de-icing.

The plane was delayed coming in and on the tarmac. I was coming from another flight so it made for a very long day. The stewardess kept trying to slam the overhead bins closed and I was worried that she had damaged my new luggage. They ran out of snacks and lccdsddd me a hummus box which was nice. It took them a very long time to pick up the garbage so I could not go to the washroom and had little time. To prepare for disbarment. The TV system was hard to control from the armrest and picture wasn’t clear. The crew did apologize several times for the lateness. It took the Denver airport an unusually long time to de-ice the plane.

WiFi connected but only let you go to the AA website, not even text messaging worked.

Because I can’t stand very long in one place, I was allowed to reword.

The flight was excellent, provided that we had inclement weather. We departed earlier than scheduled and arrived early. There was a little turbulence, but nothing to be worried about.

pleased with overall experienced, but seats in coach are tight.

Don't often sit in 1st class. Our experience was great.

The 2 hour delay was frustrating but our crew did a great job getting us out quickly and keeping communication especially with the people who had connecting flights

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

It was right on time and crew were very courteous

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Flight to Phoenix was delayed 1 hour and was not weather related. Flight Denver was delayed 2.5 hours and again was not weather related as the plane came from San Francisco.

Didn't like anything!! Horrible flight. Small seating area and hard seats. Butt was sore after 2 hour flight to Seattle No entertainment or free refreshments No wifi or USB charging receptacles to charge phone entoute like other airliners Luggage rates were 3 times as much as competitors. Difficult to navigate online luggue process to pre pay before flight Overall bad experience WILL NEVER RIDE OR RECOMMEND FRONTIER TO FRIENDS OR FAMILY MEMBERS!!! THIS IS A SHAME!! MOST MESERIBLE FLIGHT OF MY LIFE!! AND I THOUGHT SPIRIT WAS 👎 YOU GOT THEM BEAD HANDS DOWN!!

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Not have to pay for every single item to take a flight. Seating and delays sucked.

Terrible. Seats are bad and the baggage policy is inconsistent

Everything was good, and most importantly on time. They have been extremely tardy in some of my flights

They lost my baggage on my connection flight, it’s been 24 hours since I put my claim in and still no update on my bags.

It’s a cheap airline. I wish they had better seats.

The only issues had were outside of Frontier’s control or weren’t expected. It was a two hour flight they completed fast. We landed almost an hour ahead of schedule. The issues with no entertainment or food weren’t issues since there was no expectations. The issue of the loud or crying babies was outside of frontiers control.

Seats are cramped and very uncomfortable. You have to pay for everything and it is too expensive.

Smooth process and flight. My favorite kind. Uneventful and on-time!

Book cheap flights from Buffalo to Denver

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Buffalo to Denver found on KAYAK in the last 72 hours.
6/12qua
nonstopFrontier
3h 45mBUF-DEN
$59
5/22qua
nonstopFrontier
3h 56mBUF-DEN
$60
6/10seg
nonstopFrontier
3h 45mBUF-DEN
$89
9/1dom
1 stopJetBlue
8h 35mBUF-DEN
$107
9/6sex
1 stopAmerican Airlines
7h 46mBUF-DEN
$113
6/11ter
1 stopAmerican Airlines
7h 09mBUF-DEN
$114
7/16ter
1 stopJetBlue
6h 37mBUF-DEN
$136
7/10qua
1 stopUnited Airlines
6h 49mBUF-DEN
$144
7/3qua
1 stopDelta
8h 34mBUF-DEN
$196
6/11ter
2 stopsUnited Airlines
15h 01mBUF-DEN
$253

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Last minute flights from Buffalo to Denver

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Buffalo to Denver that are departing in the next 10 days.
5/21ter
multi-stopFrontier
17h 20mBUF-DEN
5/25sáb
nonstopFrontier
3h 12mDEN-BUF
$208
5/21ter
multi-stopFrontier
17h 20mBUF-DEN
5/25sáb
multi-stopFrontier
16h 08mDEN-BUF
$318
5/17sex
multi-stopFrontier
9h 44mBUF-DEN
5/25sáb
nonstopFrontier
3h 12mDEN-BUF
$326
5/17sex
multi-stopFrontier
9h 44mBUF-DEN
5/18sáb
multi-stopFrontier
17h 28mDEN-BUF
$338
5/18sáb
multi-stopDelta
7h 00mBUF-DEN
5/21ter
multi-stopDelta
9h 56mDEN-BUF
$463
5/18sáb
multi-stopAmerican Airlines
9h 47mBUF-DEN
5/23qui
multi-stopAmerican Airlines
8h 04mDEN-BUF
$467
5/17sex
multi-stopAmerican Airlines
7h 40mBUF-DEN
5/25sáb
multi-stopAmerican Airlines
7h 45mDEN-BUF
$513
5/17sex
multi-stopUnited Airlines
5h 35mBUF-DEN
5/22qua
multi-stopUnited Airlines
7h 41mDEN-BUF
$517
5/17sex
multi-stopUnited Airlines
5h 35mBUF-DEN
5/23qui
multi-stopUnited Airlines
6h 40mDEN-BUF
$520
5/17sex
multi-stopDelta
8h 10mBUF-DEN
5/18sáb
multi-stopDelta
8h 26mDEN-BUF
$584

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Buffalo - Denver Flights

Departure:

Buffalo (undefined)United States

Destination:

Denver (DEN)United States

Return flight deals:

Denver - Buffalo

Cabin classes:

$109

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