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STL - BUF

$89 Find cheap flights from St. Louis to Buffalo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Buffalo departing on 6/28. 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
Sat 7/6
Sat 7/13

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Buffalo, 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 St. Louis to Buffalo, as well as popular online travel agencies
In the last 7 days travelers have searched 43,995,393 times on KAYAK, and here is why:

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Cheap flight deals from St. Louis to Buffalo (STL-BUF)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Buffalo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:57 pm - 7:16 pmSTL-BUF
21h 19m1 stop
3:13 pm - 9:25 amBUF-STL
19h 12m1 stop
$159Frontier
Find Deal
Thu, Aug 1 - Thu, Aug 8
9:32 pm - 8:37 amSTL-BUF
10h 05m1 stop
8:06 pm - 9:25 amBUF-STL
14h 19m1 stop
$226Frontier
Find Deal
Mon, Jul 8 - Fri, Jul 12
8:00 pm - 5:46 pmSTL-BUF
20h 46m1 stop
9:19 pm - 8:20 pmBUF-STL
24h 01m1 stop
$229Frontier
Find Deal
Fri, Sep 13 - Sun, Sep 15
6:11 pm - 11:55 pmSTL-BUF
4h 44m1 stop
5:48 pm - 8:37 pmBUF-STL
3h 49m1 stop
$246Delta
Find Deal
Wed, Sep 11 - Tue, Sep 17
9:32 pm - 8:37 amSTL-BUF
10h 05m1 stop
11:30 am - 8:36 amBUF-STL
22h 06m1 stop
$249Frontier
Find Deal
Mon, Jul 15 - Thu, Jul 18
4:22 pm - 10:01 pmSTL-BUF
4h 39m1 stop
6:30 pm - 10:17 pmBUF-STL
4h 47m1 stop
$256American Airlines
Find Deal
Wed, Aug 7 - Mon, Aug 12
6:30 am - 11:24 amSTL-BUF
3h 54m1 stop
2:45 pm - 8:54 pmBUF-STL
7h 09m1 stop
$261Delta
Find Deal
Sun, Jun 23 - Tue, Jun 25
6:08 am - 11:58 amSTL-BUF
4h 50m1 stop
6:46 pm - 12:03 amBUF-STL
6h 17m1 stop
$346American Airlines
Find Deal
Sat, Jun 29 - Sun, Jun 30
8:05 am - 11:56 pmSTL-BUF
14h 51m1 stop
6:00 am - 2:18 pmBUF-STL
9h 18m2 stops
$411United Airlines
Find Deal
Wed, Jul 3 - Wed, Jul 10
9:30 am - 4:58 pmSTL-BUF
6h 28m1 stop
4:27 pm - 10:56 pmBUF-STL
7h 29m1 stop
$442United Airlines
Find Deal
Sun, Sep 15 - Tue, Sep 17

Flights from St. Louis to Buffalo - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Buffalo 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 St. Louis to Buffalo?

The average price of all flights from St. Louis to Buffalo clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Buffalo on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from St. Louis to Buffalo. For your return ticket, we recommend flying on a Sunday and avoiding Saturdays for the best deals.

What is the cheapest month to fly from St. Louis to Buffalo?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Buffalo, 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 St. Louis to Buffalo is September, where tickets cost $314 on average. On the other hand, the most expensive months are April and November, where the average cost of tickets is $478 and $458 respectively.

How far in advance should I book a flight from St. Louis to Buffalo?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Buffalo, 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 St. Louis to Buffalo, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 61 days before departure.

Which airlines provide the cheapest flights from St. Louis to Buffalo?

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 Buffalo from St. Louis were found on Frontier ($89) and Delta ($118), and the lowest round-trip tickets were found on Frontier ($159) and Delta ($246).

Good to know

Low season

February

High season

August

Cheapest flight

$89
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from St. Louis to Buffalo

When to book flights from St. Louis to Buffalo

Are your dates flexible? Find out the best times to travel from St. Louis to Buffalo 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 St. Louis to Buffalo

  • What is the cheapest flight from St. Louis to Buffalo?

    In the last 3 days, the lowest price for a flight from St. Louis to Buffalo was $89 for a one-way ticket and $159 for a round-trip.

  • Do I need a passport to fly between St. Louis and Buffalo?

    A passport is not required to fly from St. Louis to Buffalo.

  • Which airports will I be using when flying from St. Louis to Buffalo?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Buffalo, also known as Buffalo.

  • Which aircraft models fly most regularly from St. Louis to Buffalo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Buffalo?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Buffalo, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Buffalo, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Buffalo are Delta and United Airlines. With an average price for the route of $365 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $491 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Buffalo?

    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 St. Louis to Buffalo.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buffalo from St. Louis 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 St. Louis to Buffalo?

    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 Buffalo with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BUF 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 St. Louis to Buffalo?

    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 Buffalo from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from St. Louis to Buffalo

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Buffalo. 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 St. Louis to Buffalo? 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 10368 reviews
8.6Crew
8.2Boarding
8.0Entertainment
7.9Comfort
7.4Food
Airline reviews

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

10.0 ExcellentBarb, Jun 2024MSP - JFK
Read more about Delta reviews

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

The 1st class male crew member was very pleasant - the short female with round glasses , maybe in 50’s had no personality- never spoke when delivering my food, drink, & never smiled the whole trip! In fact looked annoyed when the boarding proses was happening- I would never hire this woman - unfriendly . Have never dealt with a crew member like her-

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

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

Boarding was great. The flight landed early. It took the crew over an hour and a half to bring out drinks. I paid to upgrade my seat to Comfort+ only to be near a crying/screaming baby who was seldom quiet. Noise-cancelling earbuds didn’t even help. Waste of money to upgrade.

Boarding was a sh!t show. JFK BOARDING was awful. The agent called three sections at a time Clogging the area then yelling at people to not block the walk way. How are you going to call delta one , premium select and comfort plus at once and the yell at highest paying passengers. Need to do a lot better and the flight attendants in the galley need to understand that their voices travel. They were talking about others and everyone in the cabin heard them

The main person that was coordinating everything was a short white/light skin Spanish man and he was very rude. It honestly made me feel like it was everyone’s First day at work. His announcements were very not reasonable and they did not make sense. The stewardess on the flight that made the announcements she didn’t even know what she was talking about she sounded inebriated. There were no snacks or drinks on our flight there wasn’t even much turbulence. This flight was not enjoyable nor was it what a Delta flight should be and just this past week I flew with Delta 3 times.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Not being able to purchase my check in baggage online was a negative.

Comfort of seats, ease of boarding. Food selection could be better

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

I arrived to the airport 2 hours before my American Airlines flight was scheduled to take off. I have TSA pre-check. The airport was crazy packed when I arrived. After momentarily standing in the pre-check line, the TSA agent said that I am not pre-check. Of course I said that I am because I entered my KTN number on all my traveling sites and programs. I had to get out of line and go back to the AA counter to discover that American Airlines did not add my KTN to my boarding pass. I had to call TSA to find out my number, then have AA enter it onto my boarding pass. The emblem would not load onto my boarding pass. By this time, I decided to use my Clear in order to get through TSA but the line was ridiculous long. By the time I made through TSA, I missed my 11:08am flight and was re-booked for the 5:30pm. This is after the AA employee told me I should have gotten to the airport early. AA use to be a dependable airline not I use them only if I have too.

Horrible people at the gate, they force me to check in my carry on, even thought no one behind me has to do it. I had to get out of the airport in NY to get my bag and go thru security again on my way to Honk Kong. The worst part is the employee threatened me with loosing the flights if don’t comply.

Cut off carry ons, had to check, got on and there was plenty of bin space. Disappointing.

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Book cheap flights from St. Louis to Buffalo

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Buffalo found on KAYAK in the last 72 hours.
6/28Fri
1 stopFrontier
23h 33mSTL-BUF
$89
6/18Tue
1 stopFrontier
25h 05mSTL-BUF
$90
6/19Wed
1 stopDelta
3h 54mSTL-BUF
$118
6/26Wed
1 stopAmerican Airlines
5h 45mSTL-BUF
$123
8/30Fri
1 stopDelta
5h 09mSTL-BUF
$133
7/7Sun
1 stopSun Country Air
17h 44mSTL-BUF
$138
6/16Sun
1 stopSun Country Air
4h 34mSTL-BUF
$156
6/12Wed
1 stopUnited Airlines
4h 16mSTL-BUF
$189
6/12Wed
2 stopsUnited Airlines
11h 44mSTL-BUF
$229
6/26Wed
2 stopsAmerican Airlines
10h 28mSTL-BUF
$288

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Last minute flights from St. Louis to Buffalo

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 St. Louis to Buffalo that are departing in the next 10 days.
6/10Mon
multi-stopFrontier
9h 00mSTL-BUF
7/10Wed
multi-stopFrontier
26h 29mBUF-STL
$224
6/9Sun
multi-stopFrontier
24h 13mSTL-BUF
7/10Wed
multi-stopFrontier
26h 29mBUF-STL
$307
6/9Sun
multi-stopUnited Airlines
5h 37mSTL-BUF
7/10Wed
multi-stopUnited Airlines
9h 18mBUF-STL
$486
6/11Tue
multi-stopAmerican Airlines
10h 26mSTL-BUF
6/12Wed
multi-stopAmerican Airlines
6h 17mBUF-STL
$488
6/11Tue
multi-stopUnited Airlines
5h 51mSTL-BUF
6/12Wed
multi-stopUnited Airlines
9h 05mBUF-STL
$552
6/9Sun
multi-stopUnited Airlines
6h 43mSTL-BUF
7/10Wed
multi-stopUnited Airlines
9h 18mBUF-STL
$587
6/11Tue
multi-stopUnited Airlines
9h 11mSTL-BUF
6/12Wed
multi-stopUnited Airlines
9h 05mBUF-STL
$728

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St. Louis - Buffalo Flights

Departure:

St. Louis (STL)United States

Destination:

Buffalo (BUF)United States

Return flight deals:

Buffalo - St. Louis

Cabin classes: