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$368+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — DEN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$826
(Kiwi.com)

One-way from

$368
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$1,162
From Lisbon Humberto Delgado to Denver Intl
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One-way flight from Lisbon Humberto Delgado to Denver Intl
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Highest demand for flights based on searches. 15% potential increase in price ($177 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 12, 2025.

This Iberia deal was found by Cheapflights users on 6/10. 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 9/276:35 amLIS - DEN
2 stops22h 34mMultiple Airlines
Fri 10/36:35 pmDEN - LIS
1 stop21h 35mMultiple Airlines
Deal found 6/10$752
This British Airways deal was found by Cheapflights users on 6/12. 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 12/106:30 amLIS - DEN
2 stops21h 23mBritish Airways
Tue 12/235:30 pmDEN - LIS
1 stop35h 40mBritish Airways
Deal found 6/12$788
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/225:40 amLIS - DEN
1 stop16h 50mDelta
Tue 7/81:52 pmDEN - LIS
2 stops17h 58mDelta
Deal found 6/12$818
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 12/105:00 amLIS - DEN
1 stop18h 00mUnited Airlines
Mon 12/2211:50 pmDEN - LIS
1 stop27h 25mUnited Airlines
Deal found 6/12$852
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Tue 12/1611:00 amLIS - DEN
1 stop16h 05mAir Canada
Mon 12/225:40 pmDEN - LIS
2 stops32h 40mAir Canada
Deal found 6/12$879
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 12/106:30 amLIS - DEN
2 stops20h 13mAmerican Airlines
Tue 12/232:24 pmDEN - LIS
2 stops20h 21mAmerican Airlines
Deal found 6/12$889
This lol.travel deal was found by Cheapflights users on 6/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/194:45 pmLIS - DEN
1 stop32h 10mTurkish Airlines
Fri 7/47:50 pmDEN - LIS
1 stop36h 40mTurkish Airlines
Deal found 6/11$917
This Lufthansa deal was found by Cheapflights users on 6/10. 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.
Sun 9/712:20 pmLIS - DEN
1 stop18h 39mLufthansa
Fri 9/128:20 pmDEN - LIS
1 stop18h 30mLufthansa
Deal found 6/10$978
This AirNGo deal was found by Cheapflights users on 6/11. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/45:40 amLIS - DEN
2 stops18h 38mAir France
Thu 7/175:40 pmDEN - LIS
1 stop14h 10mAir France
Deal found 6/11$1,039
This KLM deal was found by Cheapflights users on 6/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:00 amLIS - DEN
2 stops19h 29mKLM
Sun 12/2111:18 amDEN - LIS
1 stop14h 42mKLM
Deal found 6/12$1,059
This Finnair deal was found by Cheapflights users on 6/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:30 amLIS - DEN
2 stops42h 10mFinnair
Fri 12/195:30 pmDEN - LIS
1 stop33h 25mFinnair
Deal found 6/12$1,234
This Iberia deal was found by Cheapflights users on 6/10. 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 6/2212:30 pmLIS - DEN
2 stops18h 14mIberia
Tue 7/82:45 pmDEN - LIS
2 stops18h 20mIberia
Deal found 6/10$1,493

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 June 12, 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

Sat 9/27

6:35 am-10:09 pm

2 stops22h 34m

Denver Intl

Fri 10/3

6:35 pm-11:10 pm

1 stop21h 35m

$752

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sun 6/22

5:40 am-3:30 pm

1 stop16h 50m

Denver Intl

Tue 7/8

1:52 pm-2:50 pm

2 stops17h 58m

$818

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 6/26

11:05 am-10:50 pm

2 stops18h 45m

Denver Intl

Thu 7/10

6:35 pm-11:05 pm

1 stop21h 30m

$918

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 9/27

12:55 pm-7:54 pm

1 stop13h 59m

Denver Intl

Fri 10/3

7:45 am-11:05 am

1 stop20h 20m

$971

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sun 9/7

12:20 pm-11:59 pm

1 stop18h 39m

Denver Intl

Fri 9/12

8:20 pm-9:50 pm

1 stop18h 30m

$978

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 7/4

5:40 am-5:18 pm

2 stops18h 38m

Denver Intl

Thu 7/17

5:40 pm-2:50 pm

1 stop14h 10m

$1,039

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 7/12

5:55 am-5:55 pm

1 stop19h 00m

Denver Intl

Sat 7/19

7:50 pm-9:55 am

1 stop31h 05m

$1,154

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sun 6/22

4:30 pm-5:41 pm

2 stops32h 11m

Denver Intl

Tue 7/8

6:35 pm-11:00 pm

1 stop21h 25m

$1,288

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sun 6/22

12:30 pm-11:44 pm

2 stops18h 14m

Denver Intl

Tue 7/8

2:45 pm-4:05 pm

2 stops18h 20m

$1,493

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Mon 6/30

7:15 am-8:14 pm

2 stops19h 59m

Denver Intl

Thu 7/17

11:35 am-9:05 am

1 stop14h 30m

$1,601

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 25 results
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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, October is the cheapest month in which you can book a flight from Lisbon to Denver (average of $197). Flying from Lisbon to Denver in March is currently the most expensive (average of $278). 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.

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Delta, Finnair and Air France from Lisbon to Denver by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Currently priced at $870, Delta will fly you from Lisbon to Denver and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Turkish Airlines and Lufthansa - these airlines can fly you to your destination from $917 and $978, respectively. Delta is 10% 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 Aer Lingus ($613), Turkish Airlines ($688), and Air Europa ($711).

  • 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, October is the cheapest month in which you can book a flight from Lisbon to Denver (average of $197). Flying from Lisbon to Denver in March is currently the most expensive (average of $278). 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 Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Greeley
Limon

Browse thousands of different options on Cheapflights for your next trip

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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 4 airlines flying from Lisbon to Denver

Discover the top 4 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$749Average$925FlexibilityNo cancel feeOn-time70%
DeltaCheapest$758Average$958FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$766Average$957FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$875Average$930FlexibilityNo cancel feeOn-time71%

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