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$358+ Cheap flights from Lisbon (LIS) to Denver (DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — DEN
Apr 27 — May 41
Mon 4/27
Mon 5/4
1 adult, Economy
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Cheap flight deals from Lisbon to Denver

Cheapest flights from Lisbon to Denver
Explore the most affordable flight options available from Lisbon to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 pm
LIS
-
DEN
1 stop27h 00m
Aer Lingus
Sat 5/168:00 pm
DEN
-
LIS
1 stop18h 35m
Aer Lingus
Deal found 3/28$661
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/99:50 am
LIS
-
DEN
1 stop15h 25m
Multiple Airlines
Sat 5/168:00 pm
DEN
-
LIS
1 stop18h 35m
Multiple Airlines
Deal found 3/25$723
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:25 am
LIS
-
DEN
1 stop15h 50m
Multiple Airlines
Sat 5/168:00 pm
DEN
-
LIS
1 stop18h 35m
Multiple Airlines
Deal found 3/26$797
This deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:20 am
LIS
-
DEN
1 stop16h 00m
British Airways
Sun 5/36:30 pm
DEN
-
LIS
1 stop16h 15m
British Airways
Deal found 3/27$843
This Lufthansa deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:05 am
LIS
-
DEN
1 stop15h 30m
Lufthansa
Tue 4/284:05 pm
DEN
-
LIS
1 stop14h 35m
Lufthansa
Deal found 3/24$901
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:05 am
LIS
-
DEN
1 stop17h 35m
United Airlines
Wed 4/296:00 am
DEN
-
LIS
1 stop21h 30m
United Airlines
Deal found 3/27$903
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:05 am
LIS
-
DEN
1 stop15h 30m
United Airlines
Tue 4/287:45 am
DEN
-
LIS
2 stops17h 35m
United Airlines
Deal found 3/24$905
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:05 am
LIS
-
DEN
1 stop15h 30m
United Airlines
Sun 5/36:00 am
DEN
-
LIS
2 stops21h 30m
United Airlines
Deal found 3/25$906
This Scandinavian Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:00 am
LIS
-
DEN
2 stops22h 49m
Scandinavian Airlines
Sun 5/36:40 am
DEN
-
LIS
2 stops25h 55m
Scandinavian Airlines
Deal found 3/25$907
This Air Canada deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:00 am
LIS
-
DEN
2 stops19h 44m
Air Canada
Mon 11/239:58 am
DEN
-
LIS
1 stop16h 22m
Air Canada
Deal found 3/27$909

Find flight deals from Lisbon to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$661
(Kiwi.com)

One-way from

$358
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$880
Provider with most accurate pricing for Lisbon Humberto Delgado-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Denver Intl flights.
Search Deals
From Lisbon Humberto Delgado to Denver Intl
Search Deals
One-way flight from Lisbon Humberto Delgado to Denver Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lisbon to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2026.
Use the filters below to find and compare flights from Lisbon to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 5/1

10:15 pm-6:15 pm

1 stop27h 00m

Denver Intl

Sat 5/16

8:00 pm-9:35 pm

1 stop18h 35m

$661

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 5/1

9:25 am-6:15 pm

1 stop15h 50m

Denver Intl

Sat 5/16

8:00 pm-9:35 pm

1 stop18h 35m

$797

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 4/16

5:05 am-3:40 pm

1 stop17h 35m

Denver Intl

Wed 4/29

6:00 am-10:30 am

1 stop21h 30m

$903

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 5/1

10:25 am-9:46 pm

1 stop18h 21m

Denver Intl

Sat 5/16

11:59 pm-10:30 am

1 stop27h 31m

$937

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 4/16

5:00 am-8:24 pm

2 stops22h 24m

Denver Intl

Wed 4/29

6:01 pm-6:45 pm

2 stops17h 44m

$942

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 5/1

11:05 am-10:35 pm

2 stops18h 30m

Denver Intl

Sat 5/16

6:30 pm-11:10 pm

1 stop21h 40m

$1,018

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 5/1

5:35 am-9:27 pm

2 stops22h 52m

Denver Intl

Sat 5/16

6:30 am-8:00 am

1 stop18h 30m

$1,023

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 5/9

5:00 am-10:40 pm

2 stops24h 40m

Denver Intl

Sat 5/16

6:00 am-10:55 am

2 stops21h 55m

$1,041
Quickest round-trip

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Mon 7/20

11:05 am-10:14 pm

1 stop18h 09m

Denver Intl

Mon 8/3

6:40 pm-5:55 pm

1 stop16h 15m

$1,173

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 5/1

6:35 am-7:55 pm

2 stops20h 20m

Denver Intl

Sat 5/16

10:28 am-11:25 pm

2 stops29h 57m

$1,232

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Lisbon to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Lisbon to Denver in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Thrive TravelPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Lisbon-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lisbon-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lisbon-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Lisbon-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lisbon-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Lisbon to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Lisbon with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Lisbon to Denver?

Currently, April is the cheapest month in which you can book a flight from Lisbon to Denver (average of $750). Flying from Lisbon to Denver in June is currently the most expensive (average of $993). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Lisbon to Denver?

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated March 28, 2026.
Get a feel of what it's like to fly with United Airlines from Lisbon to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,499 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,499 reviews
United Airlines
7.4
Good
9,499 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Lisbon to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Lisbon to Denver?

    Airlines like Aer Lingus, United Airlines, and Delta fly from Lisbon to Denver in about 17h 35m. The time it takes to get you to your destination can typically vary by up to 9h 25m. There are 4826 mi between Lisbon and Denver. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Lisbon to Denver round-trip?

    Currently priced at $920, United Airlines will fly you from Lisbon to Denver and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. United Airlines is 6% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Lisbon to Denver one-way?

    The cheapest airlines for a one-way flight from Lisbon to Denver are British Airways ($564), American Airlines ($565), and Aer Lingus ($600).

  • Can I find deals for flights from Lisbon to Denver that include hotel bookings?

    Yes. In addition to deals on Lisbon to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lisbon to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lisbon to Denver.

  • Can I find deals for business class flights from Lisbon to Denver?

    Yes. Cheapflights offers flight deals from Lisbon to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Lisbon to Denver?

    Currently, April is the cheapest month in which you can book a flight from Lisbon to Denver (average of $750). Flying from Lisbon to Denver in June is currently the most expensive (average of $993). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Lakewood
Westminster
Broomfield
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Englewood
Fort Morgan
Brighton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Lisbon to Denver

Discover the top airline that operate flights from Lisbon to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$920Average$1,083FlexibilityNo cancel feeOn-time69%

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