DEN - LIS

$302 Find Cheap Flights from Denver to Lisbon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Lisbon departing on 7/31. 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 Lisbon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Lisbon.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Lisbon.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Denver to Lisbon (DEN-LIS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Lisbon 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 Denver to Lisbon

Sat, Aug 16 - Thu, Aug 21
Icelandair Logo
4:40 pm - 9:20 pmDEN-LIS
21h 40m1 stop
Icelandair Logo
10:20 pm - 12:30 pmLIS-DEN
21h 10m1 stop
$512Icelandair
Find Deal
Sat, Aug 16 - Thu, Aug 21
Icelandair Logo
8:10 pm - 9:20 pmDEN-LIS
18h 10m1 stop
Icelandair Logo
10:20 pm - 12:30 pmLIS-DEN
21h 10m1 stop
$535Icelandair
Find Deal
Mon, Oct 20 - Tue, Nov 4
Lufthansa Logo
5:59 pm - 3:25 pmDEN-LIS
14h 26m1 stop
Lufthansa Logo
5:00 am - 4:00 pmLIS-DEN
18h 00m1 stop
$575Lufthansa
Find Deal
Tue, Nov 25 - Tue, Dec 2
United Airlines Logo
11:15 am - 9:20 amDEN-LIS
15h 05m1 stop
United Airlines Logo
11:00 am - 2:47 pmLIS-DEN
34h 47m2 stops
$577United Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
United Airlines Logo
7:46 am - 9:20 amDEN-LIS
18h 34m2 stops
United Airlines Logo
11:00 am - 12:04 pmLIS-DEN
32h 04m2 stops
$581United Airlines
Find Deal
Wed, Nov 19 - Thu, Nov 27
Delta Logo
6:45 am - 8:00 amDEN-LIS
18h 15m2 stops
Delta Logo
11:15 am - 10:10 amLIS-DEN
29h 55m2 stops
$597Delta
Find Deal
Sun, Nov 23 - Tue, Dec 2
Delta Logo
12:55 am - 9:00 amDEN-LIS
25h 05m2 stops
Delta Logo
11:15 am - 10:30 pmLIS-DEN
18h 15m2 stops
$609Delta
Find Deal
Sun, Nov 16 - Mon, Nov 24
British Airways Logo
5:30 pm - 2:50 pmDEN-LIS
14h 20m1 stop
British Airways Logo
6:35 pm - 3:25 pmLIS-DEN
27h 50m1 stop
$623British Airways
Find Deal
Sun, Nov 16 - Mon, Nov 24
Lufthansa Logo
4:05 pm - 11:30 pmDEN-LIS
24h 25m2 stops
Lufthansa Logo
12:30 pm - 4:00 pmLIS-DEN
34h 30m1 stop
$629Lufthansa
Find Deal
Thu, Oct 30 - Fri, Nov 14
British Airways Logo
12:55 pm - 12:10 pmDEN-LIS
17h 15m2 stops
British Airways Logo
10:45 am - 11:37 pmLIS-DEN
19h 52m2 stops
$687British Airways
Find Deal
Useful Info

KAYAK's insights & trends for Denver to Lisbon flights

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

Find cheap flights to Lisbon
Find cheap flights to Lisbon

Planning a trip from Denver to Lisbon? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Lisbon, 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 Denver to Lisbon is January, where tickets cost $740 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,411 and $1,300 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Lisbon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Lisbon, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonFebruary
High seasonOctober
Cheapest flight$302
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Denver to Lisbon

When to book flights from Denver to Lisbon

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

  • How can I get from the Lisbon Airport (LIS) to the city center?

    The Lisbon Humberto Delgado International Airport is about 12min from the heart of the city. There are various ways that you can get from the airport to downtown Lisbon. This includes the public bus or subway. You'll get there quicker on the bus than on the subway. On the bus, it will take under 20min, and on the subway under 40min. Hiring a Lisbon taxi is another transportation option. The ride will last around 20min depending on traffic.

  • Where can I park my car at the Denver International Airport (DEN)?

    There are a couple of garages at the airport where you can park your car while you're vacationing in Lisbon. The garage is just a short walk from the terminals. You'll save money, however, if you choose to park in the economy parking lot right behind the airport garages.

  • Are there any banks or ATMs at the Denver International Airport (DEN)?

    If you need to withdraw some money for your trip, there is a Canvas Credit Union in the Jeppesen Terminal. There are also ATMs in a few locations around Jeppesen Terminal.

  • What can I do while waiting on my plane to leave Lisbon Airport (LIS) to go back to Denver?

    You can enjoy the benefit of relaxing in an airline lounge while you wait. Some lounge amenities include comfortable seating, complimentary beverages, televisions, and books or magazines for reading. You can also kill time dining at a well-known restaurant such as Burger King, KFC, or McDonald's. If you still have some souvenir gifts to buy, there are numerous retail shops at the airport. There are designer shops like Burberry, Guess, Michael Kors, and Boss, and gift shops that sell Swarovski crystals, sunglasses, toys, or perfumes.

  • What is the cheapest flight from Denver to Lisbon?

    In the last 3 days, the lowest price for a flight from Denver to Lisbon was $302 for a one-way ticket and $512 for a round-trip.

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

    Yes, you’ll need a passport to travel to Lisbon from Denver.

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

    When flying out of Denver you will be using Denver Intl. You will be landing at Lisbon, also known as Lisbon Humberto Delgado.

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

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

  • Which airline alliances offer flights from Denver to Lisbon?

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

  • What is the most popular layover when flying to Lisbon from Denver?

    London is the most popular layover city among KAYAK users traveling from Denver to Lisbon.

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

    The two airlines most popular with KAYAK users for flights from Denver to Lisbon are Delta and KLM. With an average price for the route of $924 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $776 and an overall rating of 7.8.

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

    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 Denver to Lisbon.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from Denver 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 Denver to Lisbon?

    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 Lisbon with an airline and back to Denver with another airline. Booking your flights between Denver and LIS 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 Denver to Lisbon?

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

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

  • If you're taking a plane from Denver International Airport (DEN) to Lisbon Humberto Delgado Airport (LIS), you'll have to switch planes. Your layover could be from 35min to over 24h. Cities that you could stop in include Toronto, Montreal, Chicago, or Washington, D.C.
  • Should your flight going back to Denver be delayed, you can take a nap in the lounge area of the Lisbon Airport. Known as the Living Spot, this quiet area is located in Terminal 1.
  • When you land at the Lisbon Humberto Delgado Airport (LIS), you can stop by the Tourist Information Desk to get information about local attractions, hotels, city tours, and transportation.
  • Passengers who have a real early flight or passengers driving to Denver to catch a flight might choose to stay the night at the Westin Denver International Airport Hotel. This hotel is a short walk from the terminals and offers amenities such as a hot tub, indoor pool, and fitness center for guests to enjoy.
  • There are currency exchange centers throughout the Lisbon Airport (LIS). You'll find currency exchange centers in Terminal 1 before and after security, in the arrival hall, and baggage claims. There are also ATMs all around the Lisbon Airport. You'll find several near the departure and arrival halls.

Reviews of the top 5 airlines serving from Denver to Lisbon

 
See real verified KAYAK customer reviews for airlines flying from Denver to Lisbon. 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 Denver to Lisbon? 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 7963 reviews
8.5Crew
7.3Food
8.2Boarding
7.9Entertainment
7.9Comfort
Airline reviews

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

4.0 OkayKoonj, Jun 2025MSP - AUS
Read more Delta reviews

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Overall, aside from the baggage issue, it was as good as one expects.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

I want to single out flight attendant Mitch who was in the Premium Economy section. When my wife’s hearing aide dropped through the cushion under the seat he was able to locate it and return it to her. Food was a different matter. Dinner was fine. Breakfast was another matter. They had a yogurt dish that the ran out of and the alternative was not very good according to those we talked to.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The seat and leg room was not good. The food and beverage service was good.

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Flight was delayed but the real issue is how long we sat after boarding. Space very limited for an overnight flight and seatbacks didn’t recline so it was almost impossible to sleep.

The staff made sure I was comfortable, moved me to a better seat with more leg room

Easy boarding and comfortable seating were plusses. Enjoyed the experience and good service from the captain and crew. Many thanks...!

Somehow, my booking was under my preferred name instead of my legal name so they almost didn’t let me board the plane at LAX. This problem should have been notified to me when I was still in Toronto.

Great overall. Quick boarding, attentive staff - great experience in premium class.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

Or the greatest and it ended up picking us up from Chicago to Toronto not sure who was tesponsible for the 4 hr delay. United should have been properly prepared for a scheduled flight from Austin to Chicago and they were not.

It was a short flight, and no entertainment. That was not a problem for us, but there is no option for "not applicable". There was a bit of turbulence, so there was no food service.

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

The United Airlines crew that operated this flight was subpar. They didn’t

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

More Indian vegetarian food options would have been better Availability of seat selection free of charge 72 hours before departure would be great

This was the second time on BA, food terrible, bathrooms gross,( granted, that was mostly due to the disgusting children urinating all over it)boarding was late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress. Seats were painful, that's what you get for traveling like a poor in economy, right BA? Should have been able to afford business or first class if you want to actually be able to walk upright without back pain after a trip.

This was the second time on BA, food terrible, bathrooms gross, boarding late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress.

The flight was delayed twice and because of that, we missed our connecting flight. British Airways then attempted to put us on the last flight to Milan from London which would have kept us in the airport for 12 hours. We had to speak to several levels of bureaucracy until BA management let us fly on a flight that only kept us in the airport for two hours. If there was an earlier flight, why weren’t we put on that flight from the start? Unacceptable behavior from what was once my favorite carrier.

The payment system was not working so was unable to connect wifi the entire flight

Business class was nothing more than Economy with middle seat empty. Uncomfortable seat and leg room. A mom behind me had a 18 month/2 yr old on her lap, who had his feet on my back all the time- while middle seat remained empty. Pretty much not worth the fare. Very disappointed.

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.