How long is the flight from Denver to Lisbon?

For as low as $547, United Airlines can have you in Lisbon from Denver in 19h 10m. Denver and Lisbon are separated by a distance of 4826 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

According to our current data, Icelandair ($458), Virgin Atlantic ($539), and Delta ($551) offers the cheapest pricing from Denver to Lisbon. Users have found that Icelandair is 51% cheaper than the other options available to this destination.

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

The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $251. However, be on the lookout for offers from Air France and British Airways, as they are both options that can get you from Denver to Lisbon for a low price.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

If weather is an important factor for your trip to Lisbon, 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 51.8 F).

What are the most popular airlines that fly from Denver to Lisbon?

Before booking your flight from Denver to Lisbon check out the most popular airlines for this route: United Airlines, British Airways or Lufthansa.

Where are the most common layover locations when flying from Denver to Lisbon?

Denver to Lisbon flights have a layover in Washington, D.C. most of the time. Munich is the second most popular location for layovers on flights from Denver to Lisbon.

Where are the least popular layover locations for Denver to Lisbon flights?

The least popular layover on flights from Denver to Lisbon is New York. London sees the next fewest layovers on Denver to Lisbon flights.

What are some popular things to do or see while on a layover in Washington, D.C.?

Most Washington, D.C. visitors opt to spend their time experiencing White House, National Mall, and U.S. Capitol. Those on a layover in Washington, D.C. interested in visiting White House, National Mall, or U.S. Capitol can do so by traveling 22.4 mi, 23.3 mi, and 24.0 mi, respectively from Washington, D.C. Dulles Intl. Travelers can book a car rental at Washington, D.C. Dulles Intl for about $54 per day to make their sightseeing more efficient.

What are some popular points of interest to see during a layover in Munich?

The majority of Munich visitors spend their time at Theresienwiese, Marienplatz, and Altes Rathaus. Theresienwiese, Marienplatz, and Altes Rathaus can be visited by traveling about 18.8 mi, 17.8 mi, and 17.8 mi respectively from Munich Franz Josef Strauss. Travelers in need of a car in Munich can rent one for about $45 per day.

Most accurate provider : When it comes to deals on Denver-Lisbon flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Lisbon flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Lisbon flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Denver-Lisbon flights, Cheapflights users trust Gurufare the most. Gurufare 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 Denver-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Denver to Lisbon?

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

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

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

$258+ Flights from Denver to Lisbon

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Denver Intl to Lisbon Humberto Delgado are usually found in November or February, booked 62 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Denver to Lisbon

Cheapest flights from Denver to Lisbon
Explore the most affordable flight options available from Denver to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

Mon 12/84:05 pmDEN - LIS

1 stop11h 10mUnited Airlines

Wed 12/246:10 amLIS - DEN

1 stop19h 45mUnited Airlines

Deal found 12/7

$548

Mon 12/81:25 pmDEN - LIS

1 stop12h 55mAir Canada

Wed 12/2411:00 amLIS - DEN

2 stops38h 08mAir Canada

Deal found 12/7

$550

Wed 12/314:05 pmDEN - LIS

1 stop11h 10mLufthansa

Wed 1/145:00 amLIS - DEN

2 stops21h 26mLufthansa

Deal found 12/8

$553

Tue 12/306:00 amDEN - LIS

1 stop21h 15mUnited Airlines

Thu 1/156:10 amLIS - DEN

1 stop15h 25mUnited Airlines

Deal found 12/8

$554

Mon 12/2911:59 pmDEN - LIS

1 stop27h 16mUnited Airlines

Wed 1/1411:20 amLIS - DEN

1 stop30h 03mUnited Airlines

Deal found 12/8

$560

Tue 12/3011:35 amDEN - LIS

1 stop13h 25mDelta

Tue 1/135:00 amLIS - DEN

2 stops24h 46mDelta

Deal found 12/8

$565

Wed 12/1011:36 amDEN - LIS

1 stop13h 24mDelta

Wed 12/245:00 amLIS - DEN

2 stops19h 32mDelta

Deal found 12/8

$566

Tue 12/305:35 pmDEN - LIS

2 stops19h 20mLufthansa

Thu 1/156:10 amLIS - DEN

1 stop15h 25mLufthansa

Deal found 12/8

$569

Tue 12/305:25 pmDEN - LIS

2 stops32h 30mAir Canada

Fri 1/1611:20 amLIS - DEN

2 stops34h 31mAir Canada

Deal found 12/8

$571

Tue 12/3012:01 pmDEN - LIS

1 stop14h 04mBritish Airways

Tue 1/1311:05 amLIS - DEN

1 stop18h 19mBritish Airways

Deal found 12/8

$573

Best flights from Denver to Lisbon
Discover carefully curated flight deals from Denver to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 9, 2025.

Tue 2/2411:15 amDEN - LIS

1 stop15h 05mMultiple Airlines

Mon 3/96:50 pmLIS - DEN

1 stop26h 45mMultiple Airlines

Deal found 12/8

$545

Mon 1/56:00 amDEN - LIS

1 stop19h 10mUnited Airlines

Wed 1/215:00 amLIS - DEN

1 stop15h 40mUnited Airlines

Deal found 12/8

$547

Mon 2/237:10 amDEN - LIS

2 stops21h 10mDelta

Thu 3/125:00 amLIS - DEN

2 stops21h 14mDelta

Deal found 12/8

$569

Mon 12/296:00 pmDEN - LIS

1 stop33h 15mUnited Airlines

Tue 1/1310:15 amLIS - DEN

1 stop16h 10mUnited Airlines

Deal found 12/7

$581

Mon 3/912:51 pmDEN - LIS

1 stop14h 09mDelta

Thu 4/235:00 amLIS - DEN

2 stops24h 31mDelta

Deal found 12/7

$610

Sun 12/146:00 amDEN - LIS

2 stops21h 15mUnited Airlines

Wed 12/246:10 amLIS - DEN

1 stop19h 45mUnited Airlines

Deal found 12/8

$603

Sun 12/148:00 amDEN - LIS

2 stops17h 00mDelta

Wed 12/2411:15 amLIS - DEN

2 stops29h 34mDelta

Deal found 12/7

$613

Tue 1/65:35 pmDEN - LIS

2 stops35h 00mUnited Airlines

Tue 1/1310:15 amLIS - DEN

2 stops16h 58mUnited Airlines

Deal found 12/7

$605

Sun 12/148:05 amDEN - LIS

1 stop19h 10mUnited Airlines

Tue 12/2311:20 amLIS - DEN

1 stop15h 50mUnited Airlines

Deal found 12/7

$610

Sat 12/137:50 amDEN - LIS

2 stops19h 25mUnited Airlines

Wed 12/246:10 amLIS - DEN

1 stop19h 45mUnited Airlines

Deal found 12/7

$613

Last-minute flights from Denver to Lisbon
Discover last-minute flight deals from Denver to Lisbon. Data last updated December 9, 2025 and is based on user searches.

Mon 12/2911:59 pmDEN - LIS

1 stop27h 16mUnited Airlines

Fri 1/1611:20 amLIS - DEN

1 stop30h 03mUnited Airlines

Deal found 12/8

$560

Tue 12/306:00 amDEN - LIS

1 stop21h 15mUnited Airlines

Thu 1/156:10 amLIS - DEN

1 stop15h 25mUnited Airlines

Deal found 12/8

$554

Tue 12/3011:35 amDEN - LIS

1 stop13h 25mDelta

Tue 1/135:00 amLIS - DEN

2 stops24h 46mDelta

Deal found 12/8

$565

Wed 12/314:05 pmDEN - LIS

1 stop11h 10mLufthansa

Wed 1/145:00 amLIS - DEN

2 stops21h 26mLufthansa

Deal found 12/8

$553

Mon 1/56:00 amDEN - LIS

1 stop19h 10mUnited Airlines

Wed 1/215:00 amLIS - DEN

1 stop15h 40mUnited Airlines

Deal found 12/8

$547

Mon 1/57:45 amDEN - LIS

2 stops17h 25mUnited Airlines

Tue 1/275:00 amLIS - DEN

1 stop15h 40mUnited Airlines

Deal found 12/8

$557

Mon 1/57:45 amDEN - LIS

2 stops17h 25mUnited Airlines

Thu 1/296:10 amLIS - DEN

1 stop15h 25mUnited Airlines

Deal found 12/8

$559

Wed 1/75:35 pmDEN - LIS

2 stops34h 50mMultiple Airlines

Wed 1/286:10 amLIS - DEN

1 stop15h 25mMultiple Airlines

Deal found 12/8

$566

Sat 1/1712:00 pmDEN - LIS

2 stops37h 55mScandinavian Airlines

Sat 1/246:55 pmLIS - DEN

2 stops35h 16mScandinavian Airlines

Deal found 12/8

$539

Fri 1/233:40 pmDEN - LIS

2 stops22h 30mMultiple Airlines

Mon 1/269:30 pmLIS - DEN

2 stops27h 35mMultiple Airlines

Deal found 12/7

$478

One-way flights from Denver to Lisbon
Search for one-way flight options from Denver to Lisbon. Find affordable one-way fares based on user searches. Data last updated December 9, 2025.

Sat 3/73:40 pmDEN - LIS

1 stop21h 40mIcelandair

Deal found 12/7

$258

Wed 1/213:40 pmDEN - LIS

1 stop21h 40mIcelandair

Deal found 12/7

$261

Sun 2/83:40 pmDEN - LIS

2 stops18h 15mMultiple Airlines

Deal found 12/9

$269

Sun 1/256:00 amDEN - LIS

3 stops57h 10mMultiple Airlines

Deal found 12/7

$288

Tue 1/207:30 amDEN - LIS

3 stops53h 05mMultiple Airlines

Deal found 12/7

$294

Fri 1/233:40 pmDEN - LIS

2 stops22h 20mMultiple Airlines

Deal found 12/7

$300

Wed 1/213:40 pmDEN - LIS

2 stops20h 55mMultiple Airlines

Deal found 12/7

$317

Sat 3/712:33 pmDEN - LIS

2 stops13h 32mMultiple Airlines

Deal found 12/7

$321

Mon 1/1911:59 pmDEN - LIS

3 stops33h 56mMultiple Airlines

Deal found 12/7

$330

Thu 1/229:41 amDEN - LIS

2 stops22h 24mMultiple Airlines

Deal found 12/7

$335

Find flight deals from Denver to Lisbon

Most accurate provider	eDreams 3 stars
Most trusted provider	Gurufare 3 stars
Round-trip from	$478 (Mytrip)
One-way from	$258 (oojo)
Popular in	June
Cheapest in	November
Average price	$1,337

Provider with most accurate pricing for Denver Intl-Lisbon Humberto Delgado flight deals.

Search Deals

Provider most trusted by Cheapflights users for Denver Intl-Lisbon Humberto Delgado flights.

Search Deals

From Denver Intl to Lisbon Humberto Delgado

Search Deals

One-way flight from Denver Intl to Lisbon Humberto Delgado

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($172 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 2/24

11:15 am-9:20 am

1 stop15h 05m

Lisbon Humberto Delgado

Mon 3/9

6:50 pm-3:35 pm

1 stop26h 45m

$545

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 1/5

6:00 am-8:10 am

1 stop19h 10m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-1:40 pm

1 stop15h 40m

$547

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 2/23

7:10 am-11:20 am

2 stops21h 10m

Lisbon Humberto Delgado

Thu 3/12

5:00 am-8:14 pm

2 stops21h 14m

$569

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 12/29

6:00 pm-10:15 am

1 stop33h 15m

Lisbon Humberto Delgado

Tue 1/13

10:15 am-7:25 pm

1 stop16h 10m

$581

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 12/14

6:00 am-10:15 am

2 stops21h 15m

Lisbon Humberto Delgado

Wed 12/24

6:10 am-6:55 pm

1 stop19h 45m

$603

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 1/6

5:35 pm-11:35 am

2 stops35h 00m

Lisbon Humberto Delgado

Tue 1/13

10:15 am-8:13 pm

2 stops16h 58m

$605

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 3/9

12:51 pm-9:00 am

1 stop14h 09m

Lisbon Humberto Delgado

Thu 4/23

5:00 am-10:31 pm

2 stops24h 31m

$610

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 12/14

8:05 am-10:15 am

1 stop19h 10m

Lisbon Humberto Delgado

Tue 12/23

11:20 am-8:10 pm

1 stop15h 50m

$610

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 12/14

8:00 am-8:00 am

2 stops17h 00m

Lisbon Humberto Delgado

Wed 12/24

11:15 am-9:49 am

2 stops29h 34m

$613

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sat 12/13

7:50 am-10:15 am

2 stops19h 25m

Lisbon Humberto Delgado

Wed 12/24

6:10 am-6:55 pm

1 stop19h 45m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 20 results

Compare providers for flights from Denver to Lisbon

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Lisbon in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star
Gurufare	Price Accuracy2 stars	Trust Score*3 stars
Jetabroad	Price Accuracy3 stars	Trust 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 Denver-Lisbon flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Lisbon flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Lisbon flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Denver-Lisbon flights, Cheapflights users trust Gurufare the most. Gurufare 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 Denver-Lisbon 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 Denver to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Denver 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 Denver to Lisbon

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

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Lisbon. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Denver to Lisbon (average of $505). Flying from Denver to Lisbon in June is currently the most expensive (average of $1,005). 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.

What is the cheapest time of day to fly from DEN to LIS?

It’s optimal to fly from Denver to Lisbon in the morning. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight at noon.

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

Travelers seeking maximum savings on their Denver to Lisbon flight should consider departing on Sunday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Lisbon

See what other customers who have flown with United Airlines, Turkish Airlines, and Air Canada from Denver to Lisbon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,089 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

United Airlines

7.4

Good

9,089 reviews

United Airlines

7.4

Good

9,089 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Turkish Airlines

7.3

Good

4,085 reviews

United Airlines

7.4

Good

9,089 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Air Canada

7.1

Good

10,514 reviews

United Airlines

7.4

Good

9,089 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Lufthansa

6.8

Okay

7,618 reviews

United Airlines

7.4

Good

9,089 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

British Airways

6.7

Okay

7,571 reviews

United Airlines

7.4

Good

9,089 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

How long is the flight from Denver to Lisbon?
For as low as $547, United Airlines can have you in Lisbon from Denver in 19h 10m. Denver and Lisbon are separated by a distance of 4826 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Denver to Lisbon round-trip?
According to our current data, Icelandair ($458), Virgin Atlantic ($539), and Delta ($551) offers the cheapest pricing from Denver to Lisbon. Users have found that Icelandair is 51% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Denver to Lisbon one-way?
The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $251. However, be on the lookout for offers from Air France and British Airways, as they are both options that can get you from Denver to Lisbon for a low price.
Where are the most common layover locations when flying from Denver to Lisbon?
Denver to Lisbon flights have a layover in Washington, D.C. most of the time. Munich is the second most popular location for layovers on flights from Denver to Lisbon.
What are some popular things to do or see while on a layover in Washington, D.C.?
Most Washington, D.C. visitors opt to spend their time experiencing White House, National Mall, and U.S. Capitol. Those on a layover in Washington, D.C. interested in visiting White House, National Mall, or U.S. Capitol can do so by traveling 22.4 mi, 23.3 mi, and 24.0 mi, respectively from Washington, D.C. Dulles Intl. Travelers can book a car rental at Washington, D.C. Dulles Intl for about $54 per day to make their sightseeing more efficient.
What are some popular points of interest to see during a layover in Munich?
The majority of Munich visitors spend their time at Theresienwiese, Marienplatz, and Altes Rathaus. Theresienwiese, Marienplatz, and Altes Rathaus can be visited by traveling about 18.8 mi, 17.8 mi, and 17.8 mi respectively from Munich Franz Josef Strauss. Travelers in need of a car in Munich can rent one for about $45 per day.
Where are the least popular layover locations for Denver to Lisbon flights?
The least popular layover on flights from Denver to Lisbon is New York. London sees the next fewest layovers on Denver to Lisbon flights.
Can I find deals for flights from Denver to Lisbon that include hotel bookings?
Yes. In addition to deals on Denver to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Denver to Lisbon?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Lisbon.
Can I find deals for business class flights from Denver to Lisbon?
Yes. Cheapflights offers flight deals from Denver to Lisbon 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 Denver to Lisbon?
Currently, November is the cheapest month in which you can book a flight from Denver to Lisbon (average of $505). Flying from Denver to Lisbon in June is currently the most expensive (average of $1,005). 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

Fátima

Oeiras

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Torres Vedras

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Other flights to Lisbon

Top 10 airlines flying from Denver to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$458	Average$668	FlexibilityNo cancel fee	On-time76%
Virgin Atlantic	Cheapest$539	Average$984	FlexibilityNo cancel fee	On-time72%
Delta	Cheapest$551	Average$939	FlexibilityNo cancel fee	On-timeN/A
Turkish Airlines	Cheapest$555	Average$693	FlexibilityNo cancel fee	On-time77%
British Airways	Cheapest$555	Average$852	FlexibilityNo cancel fee	On-time70%
Lufthansa	Cheapest$565	Average$854	FlexibilityNo cancel fee	On-time76%
Air France	Cheapest$569	Average$880	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$575	Average$768	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$594	Average$1,338	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$596	Average$906	FlexibilityNo cancel fee	On-time67%

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$258+ Cheap flights from Denver (DEN) to Lisbon (LIS)

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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Denver to Lisbon with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Denver Intl to Lisbon Humberto Delgado are usually found in November or February, booked 62 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Denver to Lisbon

Cheapest flights from Denver to LisbonExplore the most affordable flight options available from Denver to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

Explore the most affordable flight options available from Denver to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

Find flight deals from Denver to Lisbon

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Denver to Lisbon that are best for you.

Compare providers for flights from Denver to Lisbon

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 Denver to Lisbon in December.

Best time to book a flight from Denver to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Denver with our price prediction graph.

Cheapflights Insights

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

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

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

What is the cheapest time of day to fly from DEN to LIS?

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

Reviews of airlines servicing Lisbon

See what other customers who have flown with United Airlines, Turkish Airlines, and Air Canada from Denver to Lisbon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Denver to Lisbon. 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 Denver to Lisbon?

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

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

Where are the most common layover locations when flying from Denver to Lisbon?

What are some popular things to do or see while on a layover in Washington, D.C.?

What are some popular points of interest to see during a layover in Munich?

Where are the least popular layover locations for Denver to Lisbon flights?

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

How can I find direct flights from Denver to Lisbon?

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

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

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Alternative routes for Denver to Lisbon

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Top 10 airlines flying from Denver to Lisbon

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Cheapest flights from Denver to Lisbon
Explore the most affordable flight options available from Denver to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.