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$389+ 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — DEN
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from Lisbon to Denver

Best flights from Lisbon to Denver
Discover carefully curated flight deals from Lisbon to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

This Mytrip deal was found by Cheapflights users on 12/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/126:15 pmLIS - DEN
3 stops30h 50mMultiple Airlines
Sun 1/253:40 pmDEN - LIS
2 stops21h 45mMultiple Airlines
Deal found 12/26$740
This British Airways deal was found by Cheapflights users on 12/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2511:05 amLIS - DEN
1 stop17h 06mBritish Airways
Sun 2/15:25 pmDEN - LIS
1 stop17h 20mBritish Airways
Deal found 12/27$758
This American Airlines deal was found by Cheapflights users on 12/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2511:05 amLIS - DEN
1 stop17h 06mAmerican Airlines
Sun 2/14:30 pmDEN - LIS
2 stops18h 15mAmerican Airlines
Deal found 12/27$765
This Iberia deal was found by Cheapflights users on 12/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/257:45 amLIS - DEN
2 stops22h 31mMultiple Airlines
Sun 2/15:25 pmDEN - LIS
1 stop17h 20mMultiple Airlines
Deal found 12/27$756
This British Airways deal was found by Cheapflights users on 12/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1211:05 amLIS - DEN
1 stop18h 19mBritish Airways
Sun 1/2512:34 pmDEN - LIS
2 stops26h 11mBritish Airways
Deal found 12/26$758
This American Airlines deal was found by Cheapflights users on 12/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/166:30 amLIS - DEN
2 stops21h 23mAmerican Airlines
Tue 1/208:44 amDEN - LIS
2 stops17h 21mAmerican Airlines
Deal found 12/26$768
This Iberia deal was found by Cheapflights users on 12/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/246:30 amLIS - DEN
2 stops23h 46mMultiple Airlines
Sat 1/315:25 pmDEN - LIS
1 stop22h 05mMultiple Airlines
Deal found 12/27$756
This Cheapflightsfares deal was found by Cheapflights users on 12/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/247:00 amLIS - DEN
1 stop15h 30mBritish Airways
Sat 1/315:25 pmDEN - LIS
1 stop22h 05mBritish Airways
Deal found 12/27$760
This Trip.com deal was found by Cheapflights users on 12/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1211:50 amLIS - DEN
2 stops29h 52mMultiple Airlines
Tue 1/2711:35 amDEN - LIS
2 stops20h 00mMultiple Airlines
Deal found 12/27$761
This British Airways deal was found by Cheapflights users on 12/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:20 amLIS - DEN
1 stop16h 10mBritish Airways
Sat 4/116:40 pmDEN - LIS
1 stop21h 30mBritish Airways
Deal found 12/28$762

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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$740
(Mytrip)

One-way from

$389
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$995
Provider with most accurate pricing for Lisbon Humberto Delgado-Denver Intl flight deals.
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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. 6% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 28, 2025.
Use the filters below to find and compare flights from Lisbon to Denver that are best for you.

Fly from

Lisbon

Fly to

Denver

Route

Depart

Return

Price

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Mon 1/12

6:15 pm-6:05 pm

3 stops30h 50m

Denver Intl

Sun 1/25

3:40 pm-8:25 pm

2 stops21h 45m

$740

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sun 1/25

7:45 am-11:16 pm

2 stops22h 31m

Denver Intl

Sun 2/1

5:25 pm-5:45 pm

1 stop17h 20m

$756

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 1/24

6:30 am-11:16 pm

2 stops23h 46m

Denver Intl

Sat 1/31

5:25 pm-10:30 pm

1 stop22h 05m

$756

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sun 1/25

11:05 am-9:11 pm

1 stop17h 06m

Denver Intl

Sun 2/1

5:25 pm-5:45 pm

1 stop17h 20m

$758

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Mon 1/12

11:05 am-10:24 pm

1 stop18h 19m

Denver Intl

Sun 1/25

12:34 pm-9:45 pm

2 stops26h 11m

$758

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 1/24

7:00 am-3:30 pm

1 stop15h 30m

Denver Intl

Sat 1/31

5:25 pm-10:30 pm

1 stop22h 05m

$760

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Mon 1/12

11:50 am-10:42 am

2 stops29h 52m

Denver Intl

Tue 1/27

11:35 am-2:35 pm

2 stops20h 00m

$761

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 4/1

7:20 am-4:30 pm

1 stop16h 10m

Denver Intl

Sat 4/11

6:40 pm-11:10 pm

1 stop21h 30m

$762

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sun 1/25

11:05 am-9:11 pm

1 stop17h 06m

Denver Intl

Sun 2/1

4:30 pm-5:45 pm

2 stops18h 15m

$765

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 1/16

6:30 am-8:53 pm

2 stops21h 23m

Denver Intl

Tue 1/20

8:44 am-9:05 am

2 stops17h 21m

$768

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 19 results
1
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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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Thrive TravelPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Lisbon-Denver flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, February is the cheapest month in which you can book a flight from Lisbon to Denver (average of $706). 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.

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 December 28, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and British Airways 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.
Delta
7.9
Good
8,021 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,021 reviews
Delta
7.9
Good
8,021 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,116 reviews
Delta
7.9
Good
8,021 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,617 reviews
Delta
7.9
Good
8,021 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 British Airways fly from Lisbon to Denver in about 17h 06m. The time it takes to get you to your destination can typically vary by up to . There are 4826 mi between Lisbon and Denver.

  • What are the cheapest airlines flying from Lisbon to Denver round-trip?

    Currently priced at $704, British Airways will fly you from Lisbon to Denver and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $758 and $809, respectively. British Airways is 26% 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 ($566).

  • 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, February is the cheapest month in which you can book a flight from Lisbon to Denver (average of $706). 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
Broomfield
Westminster
Winter Park
Golden
Greeley
Lone Tree
Lakewood
Wheat Ridge
Cripple Creek
Silverthorne
Central City
Frisco
Manitou Springs
Fort Morgan
Brighton
Longmont
Idaho Springs
Evergreen

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Alternative routes for Lisbon to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Lisbon to Colorado Springs flights
Funchal to Denver flights

Top 3 airlines flying from Lisbon to Denver

Discover the top 3 airlines 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$704Average$918FlexibilityNo cancel feeOn-time70%
DeltaCheapest$758Average$958FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$809Average$1,074FlexibilityNo cancel feeOn-time69%

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