LIS - DEN

$394 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 12/4. 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, 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
$828
Typical prices: $818-$1,017
Multiple Airlines
Mon 12/8Mon 12/15
LIS - DEN • 2 stops
Cheapest one-way
$394
Typical prices: $710-$768
Multiple Airlines
Thu 12/4
LIS - DEN • 2 stops
Top airlines
Lufthansa
Cheapest • from $838 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 14% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Mon, Dec 8 - Mon, Dec 15
Multiple Airlines Logo
7:00 am - 6:05 pmLIS-DEN
18h 05m2 stops
Multiple Airlines Logo
3:40 pm - 8:25 pmDEN-LIS
21h 45m3 stops
$828Multiple Airlines
Find Deal
Mon, Dec 15 - Mon, Dec 29
Lufthansa Logo
5:00 am - 1:40 pmLIS-DEN
15h 40m1 stop
Lufthansa Logo
4:05 pm - 10:15 amDEN-LIS
11h 10m1 stop
$838Lufthansa
Find Deal
Mon, Dec 15 - Mon, Dec 29
Lufthansa Logo
5:00 am - 1:40 pmLIS-DEN
15h 40m1 stop
Lufthansa Logo
5:45 pm - 10:50 pmDEN-LIS
22h 05m1 stop
$843Lufthansa
Find Deal
Mon, Dec 15 - Mon, Dec 29
Multiple Airlines Logo
5:00 am - 4:00 pmLIS-DEN
18h 00m1 stop
Multiple Airlines Logo
7:05 pm - 9:20 amDEN-LIS
31h 15m2 stops
$851Multiple Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
Lufthansa Logo
5:00 am - 1:40 pmLIS-DEN
15h 40m1 stop
Lufthansa Logo
4:05 pm - 10:15 amDEN-LIS
11h 10m1 stop
$852Lufthansa
Find Deal
Mon, Dec 8 - Mon, Dec 15
United Airlines Logo
5:00 am - 1:40 pmLIS-DEN
15h 40m1 stop
United Airlines Logo
8:05 am - 8:10 amDEN-LIS
17h 05m2 stops
$856United Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
United Airlines Logo
5:00 am - 6:08 pmLIS-DEN
20h 08m2 stops
United Airlines Logo
9:45 am - 8:10 amDEN-LIS
15h 25m2 stops
$861United Airlines
Find Deal
Mon, Dec 15 - Mon, Dec 29
United Airlines Logo
5:00 am - 1:40 pmLIS-DEN
15h 40m1 stop
United Airlines Logo
6:00 pm - 10:15 amDEN-LIS
33h 15m1 stop
$862United Airlines
Find Deal
Fri, Dec 26 - Fri, Jan 2
United Airlines Logo
6:10 am - 2:35 pmLIS-DEN
15h 25m1 stop
United Airlines Logo
6:00 am - 10:15 amDEN-LIS
21h 15m1 stop
$868United Airlines
Find Deal
Mon, Dec 15 - Mon, Dec 29
Multiple Airlines Logo
5:00 am - 4:40 pmLIS-DEN
18h 40m2 stops
Multiple Airlines Logo
7:05 pm - 9:20 amDEN-LIS
31h 15m2 stops
$869Multiple Airlines
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.

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 December.

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 $1,121 and $1,063 respectively.

Good to know

Low seasonJune
Cheapest flight$394
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 5% 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 $394 for a one-way ticket and $828 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Lisbon and Denver, with Star Alliance 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 8008 reviews
7.9Comfort
8.5Crew
7.3Food
7.9Entertainment
8.1Boarding
Airline reviews

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

10.0 ExcellentDuane, Nov 2025PBI - ATL
Read more Delta reviews

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

the over had ligth did not work'd for the all way

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

DELTA does a terrific job making sure you are well taken care of during the flight, gives you assurance before the flight through numerous email notifications about your upcoming flight & lastly good follow up after the flight making sure your needs were mat. It has been, is & will continue to be my carrier of choice in all my future travels. Good Job DELTA

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

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.

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Logan gate staff was unhelpful. Arrived early, come to find out the airbus scheduled was reassigned and I did not have a seat. The desk agent spoke to his supervisor who instructed him to give me a boarding pass to get up to gate area, he was polite. At the gate the fellow was sitting to the side with two other BA staff . I asked him if he could help me, his answer was” we are on a break, we are closed” then turned his back. I am almost 70, drove 4 1/2 hours to Boston and had been looking forward to this trip for 5 months. I have worked in service many times in my life and this is not how it is done. I eventually (1/2 hr) before boarding was able to get a seat. The rest of the flight experience was unremarkable.

The boarding process was chaotic at LHR and the seat was not as comfortable as other airlines....

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

Great flight. One unique individual assisting in business class who should have not been there. Need more generic meals, not British centric.

I do not understand how BA takes coach seating and has people paying for business class. There is no leg room, seats don’t recline and no entertainment to be had unless you brought your own.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

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

Information on your arrival and departure airports