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

Icelandair is the most popular carrier operating from Denver Intl to Lisbon Humberto Delgado

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

Munich (MUC) has the shortest average layover time for this route: 1h 15m.

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 60% 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 airport is the most popular layover for flights between Denver and Lisbon?

Munich (MUC) 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 Washington, D.C. (IAD) have the shortest average one-way travel time: 11h 22m.

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

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

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 January 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.

$254 Cheap Flights from Denver to Lisbon in 2026

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Find the cheapest flights from Denver to Lisbon

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1:25 pm - 9:20 am

DEN

LIS

12h 55m1 stop

6:10 am - 2:35 pm

LIS

DEN

15h 25m1 stop

$542Multiple Airlines

Wed, Jan 21 - Fri, Jan 30

11:30 am - 10:15 am

DEN

LIS

15h 45m1 stop

5:00 am - 1:40 pm

LIS

DEN

15h 40m1 stop

$552Lufthansa

Tue, Feb 24 - Thu, Mar 5

2:04 pm - 10:15 am

DEN

LIS

13h 11m1 stop

5:00 am - 2:40 pm

LIS

DEN

15h 40m1 stop

$553United Airlines

Mon, Mar 2 - Thu, Mar 12

5:30 pm - 9:20 am

DEN

LIS

32h 50m1 stop

5:00 am - 2:40 pm

LIS

DEN

15h 40m1 stop

$555United Airlines

Sun, Mar 1 - Thu, Mar 12

4:05 pm - 10:25 pm

DEN

LIS

23h 20m1 stop

7:25 am - 11:10 pm

LIS

DEN

22h 45m2 stops

$556Multiple Airlines

Wed, Apr 29 - Wed, May 6

4:05 pm - 10:25 pm

DEN

LIS

23h 20m1 stop

5:05 am - 3:40 pm

LIS

DEN

17h 35m1 stop

$557Lufthansa

Sun, Apr 26 - Thu, May 7

6:00 am - 10:15 am

DEN

LIS

21h 15m2 stops

5:00 am - 5:00 pm

LIS

DEN

18h 00m1 stop

$558United Airlines

Mon, Mar 2 - Tue, Mar 10

5:15 am - 9:20 am

DEN

LIS

21h 05m2 stops

5:05 am - 3:40 pm

LIS

DEN

17h 35m1 stop

$559Multiple Airlines

Tue, Apr 28 - Fri, May 8

7:45 am - 10:15 am

DEN

LIS

19h 30m2 stops

6:10 am - 3:35 pm

LIS

DEN

15h 25m1 stop

$560United Airlines

Mon, Mar 2 - Fri, Mar 13

4:15 pm - 7:55 pm

DEN

LIS

20h 40m2 stops

5:00 am - 2:40 pm

LIS

DEN

15h 40m1 stop

$561Lufthansa

Wed, Mar 4 - Wed, Mar 11

Delta flights from Denver to Lisbon

Our best Delta deals on Denver to Lisbon flight tickets

Delta

Feb 17

DEN11:33 amDenver Intl

20h 37m

2 stops

LIS3:10 pmLisbon Humberto Delgado

Feb 27

LIS5:00 amLisbon Humberto Delgado

18h 39m

2 stops

DEN4:39 pmDenver Intl

$571

Find similar

Delta

Mar 3

DEN6:00 amDenver Intl

20h 00m

1 stop

LIS9:00 amLisbon Humberto Delgado

Mar 24

LIS11:25 amLisbon Humberto Delgado

30h 00m

2 stops

DEN11:25 amDenver Intl

$572

Find similar

Delta

Mar 3

DEN12:00 pmDenver Intl

16h 20m

2 stops

LIS11:20 amLisbon Humberto Delgado

Mar 24

LIS11:25 amLisbon Humberto Delgado

30h 00m

2 stops

DEN11:25 amDenver Intl

$576

Find similar

Air Canada flights from Denver to Lisbon

Our best Air Canada deals on Denver to Lisbon flight tickets

Air Canada

Mar 3

DEN11:15 amDenver Intl

39h 05m

2 stops

LIS9:20 amLisbon Humberto Delgado

Mar 11

LIS11:20 amLisbon Humberto Delgado

34h 40m

2 stops

DEN4:00 pmDenver Intl

$565

Find similar

Air Canada

Mar 11

DEN8:05 amDenver Intl

19h 15m

2 stops

LIS9:20 amLisbon Humberto Delgado

Mar 17

LIS5:00 amLisbon Humberto Delgado

19h 10m

2 stops

DEN6:10 pmDenver Intl

$566

Find similar

Air Canada

Jan 15

DEN11:15 amDenver Intl

15h 05m

1 stop

LIS9:20 amLisbon Humberto Delgado

Jan 21

LIS5:00 amLisbon Humberto Delgado

19h 44m

2 stops

DEN5:44 pmDenver Intl

$602

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 1/21

1:25 pm-9:20 am

1 stop12h 55m

Lisbon Humberto Delgado

Fri 1/30

6:10 am-2:35 pm

1 stop15h 25m

$542

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 2/24

11:30 am-10:15 am

1 stop15h 45m

Lisbon Humberto Delgado

Thu 3/5

5:00 am-1:40 pm

1 stop15h 40m

$552

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 3/2

2:04 pm-10:15 am

1 stop13h 11m

Lisbon Humberto Delgado

Thu 3/12

5:00 am-2:40 pm

1 stop15h 40m

$553

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 3/1

5:30 pm-9:20 am

1 stop32h 50m

Lisbon Humberto Delgado

Thu 3/12

5:00 am-2:40 pm

1 stop15h 40m

$555

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 4/29

4:05 pm-10:25 pm

1 stop23h 20m

Lisbon Humberto Delgado

Wed 5/6

7:25 am-11:10 pm

2 stops22h 45m

$556

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 4/26

4:05 pm-10:25 pm

1 stop23h 20m

Lisbon Humberto Delgado

Thu 5/7

5:05 am-3:40 pm

1 stop17h 35m

$557

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 3/2

6:00 am-10:15 am

2 stops21h 15m

Lisbon Humberto Delgado

Tue 3/10

5:00 am-5:00 pm

1 stop18h 00m

$558

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 4/28

5:15 am-9:20 am

2 stops21h 05m

Lisbon Humberto Delgado

Fri 5/8

5:05 am-3:40 pm

1 stop17h 35m

$559

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 3/2

7:45 am-10:15 am

2 stops19h 30m

Lisbon Humberto Delgado

Fri 3/13

6:10 am-3:35 pm

1 stop15h 25m

$560

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 3/4

4:15 pm-7:55 pm

2 stops20h 40m

Lisbon Humberto Delgado

Wed 3/11

5:00 am-2:40 pm

1 stop15h 40m

$561

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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, November 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 $662. If you are unable to visit Lisbon during the month of November, then departing from Denver during the month February is also very affordable. Most momondo users find prices during this month for around $707.

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 $935 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 $823 on momondo.

How have Denver to Lisbon flight prices changed over time?

As of January 2026, prices for Denver to Lisbon flights are approximately 57% more expensive 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	12h 55m
Direct flights	None

The fastest flight from Denver to Lisbon takes 12h 55m

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

Search flight deals

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 12h 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 January 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 13%, Lufthansa with 12%, 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 7.1 593 reviews	Search Icelandair flights
British Airways	PriceFrom $555	Free Cancellation	Rating 6.7 7,640 reviews	Search British Airways flights
Lufthansa	PriceFrom $565	Free Cancellation	Rating 6.8 7,676 reviews	Search Lufthansa flights
Delta	PriceFrom $575	Free Cancellation	Rating 7.9 8,023 reviews	Search Delta flights
KLM	PriceFrom $575	Free Cancellation	Rating 7.7 1,435 reviews	Search KLM flights
Turkish Airlines	PriceFrom $588	Free Cancellation	Rating 7.3 4,145 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $590	Free Cancellation	Rating 7.4 9,129 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom $603	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
Air Canada	PriceFrom $625	Free Cancellation	Rating 7.1 10,574 reviews	Search Air Canada flights
Air France	PriceFrom $643	Free Cancellation	Rating 7.4 1,515 reviews	Search Air France flights

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Fátima

Ericeira

Nazaré

Setúbal

Estoril

Peniche

Leiria

Oeiras

Sesimbra

Tomar

Evora

Figueira da Foz

Zambujeira do Mar

Batalha

Torres Vedras

Comporta

Óbidos

Sines

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 $254

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 2/11. 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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Delta flights from Denver to Lisbon

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See travel insights to Lisbon from

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?

As of January 2026, prices for Denver to Lisbon flights are approximately 57% more expensive when compared to flights at the same time last year.

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

Icelandair is the most popular carrier operating 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?

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

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

Flights connecting via Washington, D.C. (IAD) have the shortest average one-way travel time: 11h 22m.

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

Munich (MUC) has the shortest average layover time for this route: 1h 15m.

When to book flights from Denver to Lisbon

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

Direct flights

How far is Denver Intl to Lisbon Humberto Delgado by plane?

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

How many operators does momondo search 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?

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

What is the most popular airline from Denver to Lisbon?

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?

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

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

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

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

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

Airports servicing Portugal