LIS - DEN

$371 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 3/14. 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, 0 bags

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
$749
Typical prices: $781-$958
Multiple Airlines
Thu 2/5Thu 2/19
LIS - DEN • 2 stops
Cheapest one-way
$371
Typical prices: $732-$903
Multiple Airlines
Sat 3/14
LIS - DEN • 2 stops
Top airlines
American Airlines
Cheapest • from $750 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 11% 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

Thu, Feb 5 - Thu, Feb 19
Multiple Airlines Logo
10:55 am - 10:48 am
LIS
-
DEN
30h 53m
2 stops
Multiple Airlines Logo
2:20 pm - 9:05 am
DEN
-
LIS
11h 45m
1 stop
$749Multiple Airlines
Wed, Apr 15 - Sun, Apr 19
American Airlines Logo
6:35 am - 11:59 pm
LIS
-
DEN
24h 24m
2 stops
American Airlines Logo
5:44 pm - 5:45 pm
DEN
-
LIS
17h 01m
2 stops
$750American Airlines
Thu, Apr 9 - Thu, Apr 30
British Airways Logo
11:05 am - 10:47 pm
LIS
-
DEN
18h 42m
1 stop
British Airways Logo
6:40 pm - 6:10 pm
DEN
-
LIS
16h 30m
1 stop
$752British Airways
Wed, Apr 15 - Sun, Apr 19
American Airlines Logo
6:35 am - 11:59 pm
LIS
-
DEN
24h 24m
2 stops
American Airlines Logo
5:44 pm - 5:45 pm
DEN
-
LIS
17h 01m
2 stops
$754American Airlines
Wed, Apr 15 - Sun, Apr 19
American Airlines Logo
11:05 am - 6:10 pm
LIS
-
DEN
14h 05m
1 stop
American Airlines Logo
6:40 pm - 5:45 pm
DEN
-
LIS
16h 05m
1 stop
$756American Airlines
Tue, Feb 24 - Sun, Mar 1
British Airways Logo
11:05 am - 9:36 pm
LIS
-
DEN
17h 31m
1 stop
British Airways Logo
5:25 pm - 9:45 pm
DEN
-
LIS
21h 20m
1 stop
$758British Airways
Wed, Feb 18 - Thu, Mar 19
Multiple Airlines Logo
6:30 am - 8:05 pm
LIS
-
DEN
20h 35m
2 stops
Multiple Airlines Logo
2:10 pm - 9:05 am
DEN
-
LIS
12h 55m
1 stop
$759Multiple Airlines
Thu, Feb 5 - Thu, Feb 19
American Airlines Logo
10:55 am - 9:11 pm
LIS
-
DEN
17h 16m
1 stop
American Airlines Logo
2:20 pm - 9:05 am
DEN
-
LIS
11h 45m
1 stop
$762American Airlines
Thu, Feb 26 - Wed, Mar 11
British Airways Logo
10:55 am - 9:36 pm
LIS
-
DEN
17h 41m
1 stop
British Airways Logo
2:10 pm - 8:55 am
DEN
-
LIS
12h 45m
1 stop
$763British Airways
Thu, Apr 9 - Thu, Apr 30
British Airways Logo
11:05 am - 11:59 pm
LIS
-
DEN
19h 54m
2 stops
British Airways Logo
6:40 pm - 6:10 pm
DEN
-
LIS
16h 30m
1 stop
$764British Airways
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.

How much is a round-trip flight from Lisbon to Denver?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Lisbon to Denver departing in February.

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 $853 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $1,121 and $1,051 respectively.

Good to know

Low seasonJune
Cheapest flight$371
Best time to beat the crowds but there is an average 8% 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 $371 for a one-way ticket and $749 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, oneworld, and Star Alliance 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 $1,074 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 8088 reviews
7.9Comfort
8.5Crew
8.1Boarding
7.8Entertainment
7.2Food
Airline reviews

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

4.0 OkayJohn, Jan 2026
DAL - ATL
Read more Delta reviews

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

Good seat comfort ORF to ATL. Bad seat ATL to SEA (terrible lumbar support, hard, ouch)..

Because I was moved to an exit row, the snacks in economy comfort, the selection of snacks was better.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

My requested wheelchair never appeared. So many entertainment choices yet, I found little of interest and no internet option to search on my own. Both were minor issues.

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

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.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

The flight crew was kind, flexible, and accommodating. The seats on the plane were extremely uncomfortable.

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

The transit at Heathrow was an absolute and total nightmare. Absolutely gut wrenchingly horrible and scary. Embarrassing that their National air carrier cannot figure a half decent experience for passengers to transit via London. Shameful.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

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

Information on your arrival and departure airports