LIS - DEN

$341 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 4/22. 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
$805
Typical prices: $787-$1,002
Multiple Airlines
Mon 5/18Mon 11/16
LIS - DEN • 1 stop
Cheapest one-way
$341
Typical prices: $686-$932
Multiple Airlines
Wed 4/22
LIS - DEN • 3 stops
Top airlines
United Airlines
Cheapest • from $862 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Lisbon and Denver. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Paris (CDG)
Cheapest • Avg $785 (round-trip)
Newark (EWR)
Shortest trip • 14h 43m (one-way)
Insights
Insights
Insights
Insights
When to travel
November
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

Mon, May 18 - Mon, Nov 16
Multiple Airlines Logo
10:25 am - 10:30 am
LIS
-
DEN
31h 05m
1 stop
Multiple Airlines Logo
4:20 pm - 4:55 pm
DEN
-
LIS
17h 35m
2 stops
$805Multiple Airlines
Fri, May 1 - Sun, May 10
Multiple Airlines Logo
9:35 am - 10:34 am
LIS
-
DEN
31h 59m
2 stops
Multiple Airlines Logo
4:40 pm - 7:15 pm
DEN
-
LIS
19h 35m
2 stops
$822Multiple Airlines
Tue, May 5 - Thu, May 28
Multiple Airlines Logo
10:20 am - 10:30 am
LIS
-
DEN
31h 10m
1 stop
Multiple Airlines Logo
6:25 am - 10:35 pm
DEN
-
LIS
33h 10m
2 stops
$835Multiple Airlines
Mon, May 18 - Mon, Nov 16
Multiple Airlines Logo
7:10 am - 4:30 pm
LIS
-
DEN
16h 20m
1 stop
Multiple Airlines Logo
5:25 pm - 2:55 pm
DEN
-
LIS
14h 30m
1 stop
$857Multiple Airlines
Wed, Apr 15 - Sun, Apr 19
United Airlines Logo
5:05 am - 3:40 pm
LIS
-
DEN
17h 35m
1 stop
United Airlines Logo
6:00 am - 10:30 am
DEN
-
LIS
21h 30m
1 stop
$862United Airlines
Thu, Apr 2 - Wed, Apr 15
United Airlines Logo
5:05 am - 1:35 pm
LIS
-
DEN
15h 30m
1 stop
United Airlines Logo
6:00 am - 8:20 am
DEN
-
LIS
19h 20m
1 stop
$863United Airlines
Mon, Mar 16 - Mon, Mar 30
United Airlines Logo
5:00 am - 2:40 pm
LIS
-
DEN
15h 40m
1 stop
United Airlines Logo
4:05 pm - 10:45 pm
DEN
-
LIS
23h 40m
1 stop
$866United Airlines
Mon, Mar 16 - Mon, Mar 30
United Airlines Logo
5:00 am - 11:30 pm
LIS
-
DEN
24h 30m
2 stops
United Airlines Logo
11:59 pm - 10:30 am
DEN
-
LIS
27h 31m
1 stop
$867United Airlines
Fri, May 1 - Sun, May 10
United Airlines Logo
5:05 am - 7:20 pm
LIS
-
DEN
21h 15m
2 stops
United Airlines Logo
7:50 am - 10:30 am
DEN
-
LIS
19h 40m
1 stop
$868United Airlines
Fri, May 1 - Sun, May 10
United Airlines Logo
6:15 am - 2:20 pm
LIS
-
DEN
15h 05m
1 stop
United Airlines Logo
7:50 am - 10:30 am
DEN
-
LIS
19h 40m
1 stop
$876United Airlines
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 May.

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 November, where tickets cost $875 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $1,271 and $1,051 respectively.

Find deals

Good to know

Low seasonJune
Cheapest flight$341
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 8% 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 $341 for a one-way ticket and $805 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 is the only airline alliance operating flights between Lisbon and Denver.

  • 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 airline flying 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.
7.4
United AirlinesOverall score based on 9363 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

2.0 MediocreCameron, Feb 2026
GRR - DEN
Read more United Airlines reviews

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

As great a red-eye flight as red-eye flights can be.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

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

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

Information on your arrival and departure airports

Lisbon (LIS)
Denver (DEN)