LIS - DEN

$431 Find Cheap Flights from Lisbon 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 Lisbon to Denver departing on 11/4. 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
1 adult, Economy

KAYAK searches 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 Lisbon 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 Lisbon to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$650
Overall average: $908
Multiple Airlines
Wed 11/19Thu 11/27
LIS - DEN • 1 stop
Cheapest one-way
$431
Typical prices: $658-$897
Multiple Airlines
Tue 11/4
LIS - DEN • 2 stops
Top airlines
Lufthansa
Cheapest • from $869 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 15% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Lisbon to Denver (LIS-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Lisbon to Denver 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Lisbon to Denver

Wed, Nov 19 - Thu, Nov 27
Multiple Airlines Logo
4:40 pm - 3:42 pmLIS-DEN
30h 02m1 stop
Multiple Airlines Logo
6:22 am - 11:40 amDEN-LIS
22h 18m1 stop
$650Multiple Airlines
Find Deal
Thu, Nov 6 - Wed, Nov 19
Multiple Airlines Logo
12:05 pm - 1:08 amLIS-DEN
20h 03m1 stop
Multiple Airlines Logo
9:09 am - 11:40 amDEN-LIS
19h 31m1 stop
$724Multiple Airlines
Find Deal
Wed, Nov 19 - Thu, Dec 4
Lufthansa Logo
5:00 am - 1:40 pmLIS-DEN
15h 40m1 stop
Lufthansa Logo
4:05 pm - 10:15 amDEN-LIS
11h 10m1 stop
$869Lufthansa
Find Deal
Thu, Nov 20 - Fri, Nov 28
Delta Logo
5:00 am - 7:31 pmLIS-DEN
21h 31m2 stops
Delta Logo
7:10 am - 9:00 amDEN-LIS
18h 50m1 stop
$878Delta
Find Deal
Sat, Nov 1 - Sat, Nov 8
Delta Logo
5:30 am - 9:41 pmLIS-DEN
22h 11m2 stops
Delta Logo
11:40 am - 3:10 pmDEN-LIS
20h 30m2 stops
$880Delta
Find Deal
Tue, Nov 4 - Tue, Nov 11
Lufthansa Logo
6:10 am - 2:35 pmLIS-DEN
15h 25m1 stop
Lufthansa Logo
4:20 pm - 1:20 pmDEN-LIS
14h 00m1 stop
$885Lufthansa
Find Deal
Mon, Nov 17 - Tue, Nov 25
United Airlines Logo
5:00 am - 4:00 pmLIS-DEN
18h 00m1 stop
United Airlines Logo
9:35 am - 10:15 amDEN-LIS
17h 40m1 stop
$887United Airlines
Find Deal
Mon, Nov 17 - Sun, Nov 30
United Airlines Logo
5:00 am - 4:00 pmLIS-DEN
18h 00m1 stop
United Airlines Logo
11:59 pm - 10:15 amDEN-LIS
27h 16m1 stop
$892United Airlines
Find Deal
Fri, Dec 5 - Fri, Dec 12
British Airways Logo
11:05 am - 11:05 pmLIS-DEN
19h 00m1 stop
British Airways Logo
12:04 pm - 8:50 amDEN-LIS
13h 46m1 stop
$895British Airways
Find Deal
Sun, Nov 16 - Sun, Nov 30
British Airways Logo
6:40 pm - 3:30 pmLIS-DEN
27h 50m1 stop
British Airways Logo
5:25 pm - 9:50 amDEN-LIS
33h 25m1 stop
$924British Airways
Find Deal
Booking Insights

KAYAK's insights & trends for Lisbon to Denver flights

Get data-powered insights and trends into flights from Lisbon 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 Lisbon to Denver?

The average price of all round-trip flights from Lisbon to Denver clicked on KAYAK for each day over the last 12 months.

For Lisbon to Denver, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Denver back to Lisbon, the best deals are generally found on Wednesday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Lisbon 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 Lisbon to Denver is February, where tickets cost $821 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,194 and $1,063 respectively.

Good to know

Low seasonJune
Cheapest flight$431
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Lisbon to Denver

When to book flights from Lisbon to Denver

Are your dates flexible? Find out the best times to travel from Lisbon 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 Lisbon to Denver

  • What is the cheapest flight from Lisbon to Denver?

    In the last 3 days, the lowest price for a flight from Lisbon to Denver was $431 for a one-way ticket and $650 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Lisbon and on arrival in Denver.

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

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

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

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

  • Which airline alliances offer flights from Lisbon to Denver?

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

  • Which is the best airline for flights from Lisbon to Denver, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Lisbon to Denver are Delta and United Airlines. With an average price for the route of $958 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,063 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Lisbon 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 Lisbon to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Lisbon 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 Lisbon 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 Lisbon with another airline. Booking your flights between Lisbon 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 Lisbon 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 Lisbon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Lisbon to Denver

 
See real verified KAYAK customer reviews for airlines flying from Lisbon 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 Lisbon 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.
7.9
DeltaOverall score based on 7979 reviews
8.2Boarding
8.5Crew
7.3Food
7.9Comfort
7.9Entertainment
Airline reviews

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

6.0 GoodDavid, Oct 2025LAX - JFK
Read more Delta reviews

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

It is a wonderful airline. The cabin crews were friendly and the food as well as the service the were excellent.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

1. The website didn’t allow me to checkin from London as I have Bangladesh passport with US permanent resident card. This pushed me to sit with my wife in the middle of two aisle seats, terrible experience! 2. BA should allow within 24 hours to checkin with other passport holders to choose better seats. A 2nd verification of travel documents can be done at the desk about immigration status. 3. Food options were poor for vegetarian passengers, try to introduce healthy options avoiding carb-dense food ingredients.

Cabin crew lovely and accommodating and I'll always fly BA in the future

Everything you need to know for your flight from Lisbon to Denver

Information on your arrival and departure airports

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