Which layover airport offers the lowest fares from Denver to Lisbon?

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $601.

Which airport is the most popular layover for flights between Denver and Lisbon?

Newark (EWR) was the most common stop: 19% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Denver to Lisbon?

Flights connecting via Toronto (YYZ) have the shortest average one-way travel time: 11h 45m.

What airlines fly to Lisbon?

United Airlines, British Airways and Lufthansa are the top three most popular airlines that fly to Lisbon from Denver according to our data. United Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 13 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Denver to Lisbon?

Munich (MUC) has the shortest average layover time for this route: 1h 05m.

What is the cheapest airline that flies from Denver Intl to Lisbon Humberto Delgado?

Lufthansa, British Airways, and United Airlines are the most popular carriers operating from Denver Intl to Lisbon Humberto Delgado

When did momondo last update prices for flights from Denver Intl Airport to Lisbon Humberto Delgado Airport?

Prices for flights from Denver Intl Airport to Lisbon Humberto Delgado Airport are updated daily.

How many operators does momondo search for flights from Denver Intl Airport to Lisbon Humberto Delgado Airport?

As of March 2026, there are 13 operators available to choose from for flights from Denver Intl Airport to Lisbon Humberto Delgado Airport.

How old do you have to be to fly from Denver Intl Airport to Lisbon Humberto Delgado Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to Lisbon Humberto Delgado Airport.

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

The required travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$253 Cheap Flights from Denver to Lisbon in 2026

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One-way

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12:24 pm - 11:50 am

DEN

LIS

16h 26m

2 stops

11:05 am - 11:59 pm

LIS

DEN

19h 54m

2 stops

$609American Airlines

Tue, Apr 14 - Fri, Apr 24

6:40 pm - 5:55 pm

DEN

LIS

16h 15m

1 stop

11:00 am - 11:59 pm

LIS

DEN

19h 59m

2 stops

$610British Airways

Tue, Apr 21 - Tue, Apr 28

10:28 am - 3:50 pm

DEN

LIS

22h 22m

2 stops

4:35 pm - 7:55 pm

LIS

DEN

34h 20m

2 stops

$612Finnair

Mon, Apr 20 - Mon, May 4

11:59 pm - 10:30 am

DEN

LIS

27h 31m

1 stop

7:25 am - 9:08 pm

LIS

DEN

20h 43m

2 stops

$616United Airlines

Sat, Apr 25 - Wed, May 6

8:40 am - 9:05 am

DEN

LIS

17h 25m

1 stop

6:45 pm - 4:30 pm

LIS

DEN

28h 45m

1 stop

$617British Airways

Sun, Apr 19 - Tue, May 5

12:59 pm - 8:40 pm

DEN

LIS

24h 41m

2 stops

7:00 am - 10:49 pm

LIS

DEN

22h 49m

2 stops

$618Scandinavian Airlines

Wed, Aug 26 - Sat, Sep 5

6:40 pm - 11:00 pm

DEN

LIS

21h 20m

1 stop

11:05 am - 10:47 pm

LIS

DEN

18h 42m

1 stop

$619British Airways

Tue, Apr 28 - Fri, May 8

6:40 pm - 11:10 pm

DEN

LIS

21h 30m

1 stop

11:05 am - 6:10 pm

LIS

DEN

14h 05m

1 stop

$622British Airways

Mon, Apr 6 - Wed, Apr 15

11:55 pm - 8:00 am

DEN

LIS

25h 05m

1 stop

5:35 am - 5:21 pm

LIS

DEN

18h 46m

2 stops

$625Multiple Airlines

Mon, Apr 13 - Thu, Apr 23

6:30 pm - 11:00 pm

DEN

LIS

21h 30m

1 stop

11:05 am - 10:47 pm

LIS

DEN

18h 42m

1 stop

$626British Airways

Tue, Apr 14 - Fri, Apr 24

American Airlines flights from Denver to Lisbon

Our best American Airlines deals on Denver to Lisbon flight tickets

American Airlines

Apr 14

DEN12:24 pmDenver Intl

16h 26m

2 stops

LIS11:50 amLisbon Humberto Delgado

Apr 24

LIS11:05 amLisbon Humberto Delgado

19h 54m

2 stops

DEN11:59 pmDenver Intl

$609

American Airlines

Apr 14

DEN6:40 pmDenver Intl

21h 20m

1 stop

LIS11:00 pmLisbon Humberto Delgado

Apr 24

LIS11:05 amLisbon Humberto Delgado

18h 42m

1 stop

DEN10:47 pmDenver Intl

$638

American Airlines

Mar 9

DEN7:05 amDenver Intl

20h 00m

1 stop

LIS9:05 amLisbon Humberto Delgado

Mar 16

LIS7:05 amLisbon Humberto Delgado

18h 56m

2 stops

DEN8:01 pmDenver Intl

$666

British Airways flights from Denver to Lisbon

Our best British Airways deals on Denver to Lisbon flight tickets

British Airways

Apr 21

DEN6:40 pmDenver Intl

16h 15m

1 stop

LIS5:55 pmLisbon Humberto Delgado

Apr 28

LIS11:00 amLisbon Humberto Delgado

19h 59m

2 stops

DEN11:59 pmDenver Intl

$610

British Airways

Apr 19

DEN8:40 amDenver Intl

17h 25m

1 stop

LIS9:05 amLisbon Humberto Delgado

May 5

LIS6:45 pmLisbon Humberto Delgado

28h 45m

1 stop

DEN4:30 pmDenver Intl

$617

British Airways

Apr 28

DEN6:40 pmDenver Intl

21h 20m

1 stop

LIS11:00 pmLisbon Humberto Delgado

May 8

LIS11:05 amLisbon Humberto Delgado

18h 42m

1 stop

DEN10:47 pmDenver Intl

$619

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 4/14

12:24 pm-11:50 am

2 stops16h 26m

Lisbon Humberto Delgado

Fri 4/24

11:05 am-11:59 pm

2 stops19h 54m

$609

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 4/21

6:40 pm-5:55 pm

1 stop16h 15m

Lisbon Humberto Delgado

Tue 4/28

11:00 am-11:59 pm

2 stops19h 59m

$610

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 4/20

10:28 am-3:50 pm

2 stops22h 22m

Lisbon Humberto Delgado

Mon 5/4

4:35 pm-7:55 pm

2 stops34h 20m

$612

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sat 4/25

11:59 pm-10:30 am

1 stop27h 31m

Lisbon Humberto Delgado

Wed 5/6

7:25 am-9:08 pm

2 stops20h 43m

$616

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 4/19

8:40 am-9:05 am

1 stop17h 25m

Lisbon Humberto Delgado

Tue 5/5

6:45 pm-4:30 pm

1 stop28h 45m

$617

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 8/26

12:59 pm-8:40 pm

2 stops24h 41m

Lisbon Humberto Delgado

Sat 9/5

7:00 am-10:49 pm

2 stops22h 49m

$618

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 4/28

6:40 pm-11:00 pm

1 stop21h 20m

Lisbon Humberto Delgado

Fri 5/8

11:05 am-10:47 pm

1 stop18h 42m

$619

Quickest round-trip

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 4/6

6:40 pm-11:10 pm

1 stop21h 30m

Lisbon Humberto Delgado

Wed 4/15

11:05 am-6:10 pm

1 stop14h 05m

$622

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 4/13

11:55 pm-8:00 am

1 stop25h 05m

Lisbon Humberto Delgado

Thu 4/23

5:35 am-5:21 pm

2 stops18h 46m

$625

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 4/14

6:30 pm-11:00 pm

1 stop21h 30m

Lisbon Humberto Delgado

Fri 4/24

11:05 am-10:47 pm

1 stop18h 42m

$626

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest month to fly to Lisbon?

In general, January is the cheapest month to fly from Denver to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $626. If you are unable to visit Lisbon during the month of January, then departing from Denver during the month February is also very affordable. Most momondo users find prices during this month for around $630.

How far in advance should I book a flight to Lisbon?

You are more likely to see cheaper flights to Lisbon from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $884 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Denver for as low as $722 on momondo.

How have Denver to Lisbon flight prices changed over time?

As of March 2026, prices for Denver to Lisbon flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from Denver to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Lisbon according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Denver to Lisbon (DEN to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Lisbon

Fastest flight time	15h 55m
Direct flights	None

The fastest flight from Denver to Lisbon takes 15h 55m

There are no direct flights from Denver to Lisbon. There are no popular flight routes from Denver to Lisbon.

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How far is Denver Intl to Lisbon Humberto Delgado by plane?
The distance between Denver Intl and Lisbon Humberto Delgado is about 4847.0 mi. Flights usually cover this in 15h 55m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Denver Intl Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Denver Intl Airport to Lisbon Humberto Delgado Airport are updated daily.
How many operators does momondo search for flights from Denver Intl Airport to Lisbon Humberto Delgado Airport?
As of March 2026, there are 13 operators available to choose from for flights from Denver Intl Airport to Lisbon Humberto Delgado Airport.
How old do you have to be to fly from Denver Intl Airport to Lisbon Humberto Delgado Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The required travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Denver to Lisbon?
Based on momondo bookings for flights between Denver and Lisbon, the leading airline is United Airlines, making up 46% of the total bookings. Other popular airlines include British Airways with 15%, Lufthansa with 10%, and Air Canada with 7%.

Best airlines flying from Denver to Lisbon

Compare and see reviews for airlines that fly from Denver to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $458	Free Cancellation	Rating 7.1 617 reviews	Search Icelandair flights
British Airways	PriceFrom $555	Free Cancellation	Rating 6.7 7,780 reviews	Search British Airways flights
Lufthansa	PriceFrom $559	Free Cancellation	Rating 6.8 7,833 reviews	Search Lufthansa flights
United Airlines	PriceFrom $574	Free Cancellation	Rating 7.4 9,406 reviews	Search United Airlines flights
Delta	PriceFrom $575	Free Cancellation	Rating 7.9 8,270 reviews	Search Delta flights
Air Canada	PriceFrom $595	Free Cancellation	Rating 7.1 10,795 reviews	Search Air Canada flights
KLM	PriceFrom $599	Free Cancellation	Rating 7.8 1,467 reviews	Search KLM flights
Virgin Atlantic	PriceFrom $603	Free Cancellation	Rating 7.5 680 reviews	Search Virgin Atlantic flights
Turkish Airlines	PriceFrom $609	Free Cancellation	Rating 7.3 4,249 reviews	Search Turkish Airlines flights
American Airlines	PriceFrom $630	Free Cancellation	Rating 7.1 11,400 reviews	Search American Airlines flights

Sintra

Ericeira

Fátima

Nazaré

Setúbal

Estoril

Peniche

Evora

Oeiras

Sesimbra

Leiria

Figueira da Foz

Tomar

Zambujeira do Mar

Batalha

Óbidos

Sines

Torres Vedras

Comporta

Almada

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Lisbon?

Finding the right flight to Lisbon from Denver is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Lisbon quick and easy, saving you time and money.

Can I find flights from Denver to Lisbon with flexible booking policies on momondo?

momondo does allow users to show only those flights to Lisbon from Denver which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Denver to Lisbon?

momondo provides multiple filters to help you find the best flight to Lisbon from Denver. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Denver to Lisbon right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Denver to Lisbon flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Lisbon trip

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Cheap flights from Denver to Lisbon from $253

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Lisbon departing on 4/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Denver to Lisbon

What is the cheapest month to fly to Lisbon?

How far in advance should I book a flight to Lisbon?

How have Denver to Lisbon flight prices changed over time?

What is the cheapest airline that flies from Denver Intl to Lisbon Humberto Delgado?

What airlines fly to Lisbon?

Which airport is the most popular layover for flights between Denver and Lisbon?

Which layover airport offers the lowest fares from Denver to Lisbon?

Which layover airport has the shortest travel time from Denver to Lisbon?

Which layover airport has the shortest connection time from Denver to Lisbon?

When to book flights from Denver to Lisbon

Cheap Denver to Lisbon (DEN to LIS) flight deals and tips

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Best airlines flying from Denver to Lisbon

Compare and see reviews for airlines that fly from Denver to Lisbon with momondo

Traveling to a place near Lisbon?

Why use momondo?

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

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