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 23m.

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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $625.

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

Munich (MUC) has the shortest average layover time for this route: 1h 19m.

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 61% 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?

Washington, D.C. (IAD) was the most common stop: 18% of momondo users choosing 1-stop flights on this route connected there.

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

Icelandair, Air Canada, and KLM 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 August 2025, 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.

$270 Cheap Flights from Denver to Lisbon in 2025

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Find the cheapest flights from Denver to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

7:45 am - 10:00 pmDEN-LIS

31h 15m3 stops

9:35 pm - 4:33 pmLIS-DEN

25h 58m2 stops

$527

Find Deal

Sun, Sep 7 - Tue, Sep 16

4:40 pm - 9:45 pmDEN-LIS

22h 05m2 stops

10:05 pm - 6:55 pmLIS-DEN

27h 50m3 stops

$565

Find Deal

Wed, Oct 1 - Tue, Oct 7

11:15 am - 9:20 amDEN-LIS

16h 05m1 stop

5:00 am - 1:40 pmLIS-DEN

15h 40m1 stop

$582United Airlines

Find Deal

Tue, Oct 28 - Tue, Dec 9

11:15 am - 9:20 amDEN-LIS

15h 05m1 stop

5:00 am - 4:00 pmLIS-DEN

18h 00m1 stop

$583United Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 11

8:45 am - 9:20 amDEN-LIS

18h 35m2 stops

5:00 am - 4:40 pmLIS-DEN

18h 40m2 stops

$589Air Canada

Find Deal

Tue, Oct 28 - Tue, Dec 9

12:20 pm - 9:00 amDEN-LIS

13h 40m1 stop

11:15 am - 10:44 amLIS-DEN

30h 29m1 stop

$611Delta

Find Deal

Sun, Nov 2 - Fri, Nov 14

11:15 am - 2:50 pmDEN-LIS

20h 35m2 stops

5:00 am - 10:23 amLIS-DEN

36h 23m2 stops

$616Air Canada

Find Deal

Sun, Nov 30 - Fri, Dec 12

4:05 pm - 10:15 amDEN-LIS

11h 10m1 stop

12:30 pm - 4:00 pmLIS-DEN

34h 30m1 stop

$618Lufthansa

Find Deal

Wed, Nov 5 - Mon, Nov 10

7:00 am - 8:00 amDEN-LIS

18h 00m2 stops

5:30 am - 10:46 pmLIS-DEN

24h 16m2 stops

$620Delta

Find Deal

Sun, Nov 2 - Tue, Nov 11

5:45 pm - 10:50 pmDEN-LIS

22h 05m1 stop

3:55 pm - 4:30 pmLIS-DEN

31h 35m2 stops

$639Lufthansa

Find Deal

Sun, Nov 2 - Mon, Nov 17

Delta flights from Denver to Lisbon

Our best Delta deals on Denver to Lisbon flight tickets

Delta

Nov 2

DEN12:20 pmDenver Intl

13h 40m

1 stop

LIS9:00 amLisbon Humberto Delgado

Nov 14

LIS11:15 amLisbon Humberto Delgado

30h 29m

1 stop

DEN10:44 amDenver Intl

$611

Find similar

Delta

Nov 2

DEN7:00 amDenver Intl

18h 00m

2 stops

LIS8:00 amLisbon Humberto Delgado

Nov 11

LIS5:30 amLisbon Humberto Delgado

24h 16m

2 stops

DEN10:46 pmDenver Intl

$620

Find similar

Delta

Aug 19

DEN1:51 pmDenver Intl

17h 59m

2 stops

LIS2:50 pmLisbon Humberto Delgado

Aug 29

LIS11:40 amLisbon Humberto Delgado

18h 23m

2 stops

DEN11:03 pmDenver Intl

$814

Find similar

Icelandair flights from Denver to Lisbon

Our best Icelandair deals on Denver to Lisbon flight tickets

Icelandair

Aug 23

DEN8:10 pmDenver Intl

18h 10m

1 stop

LIS9:20 pmLisbon Humberto Delgado

Aug 31

LIS10:25 pmLisbon Humberto Delgado

27h 30m

1 stop

DEN6:55 pmDenver Intl

$625

Find similar

Icelandair

Aug 23

DEN4:40 pmDenver Intl

21h 40m

1 stop

LIS9:20 pmLisbon Humberto Delgado

Aug 31

LIS10:25 pmLisbon Humberto Delgado

21h 05m

1 stop

DEN12:30 pmDenver Intl

$629

Find similar

Icelandair

Aug 16

DEN4:40 pmDenver Intl

22h 15m

2 stops

LIS9:55 pmLisbon Humberto Delgado

Aug 24

LIS10:20 pmLisbon Humberto Delgado

21h 10m

1 stop

DEN12:30 pmDenver Intl

$1,069

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 9/7

7:45 am-10:00 pm

3 stops31h 15m

Lisbon Humberto Delgado

Tue 9/16

9:35 pm-4:33 pm

2 stops25h 58m

$527

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 10/1

4:40 pm-9:45 pm

2 stops22h 05m

Lisbon Humberto Delgado

Tue 10/7

10:05 pm-6:55 pm

3 stops27h 50m

$565

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 10/28

11:15 am-9:20 am

1 stop16h 05m

Lisbon Humberto Delgado

Tue 12/9

5:00 am-1:40 pm

1 stop15h 40m

$582

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 11/4

11:15 am-9:20 am

1 stop15h 05m

Lisbon Humberto Delgado

Tue 11/11

5:00 am-4:00 pm

1 stop18h 00m

$583

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 10/28

8:45 am-9:20 am

2 stops18h 35m

Lisbon Humberto Delgado

Tue 12/9

5:00 am-4:40 pm

2 stops18h 40m

$589

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 11/2

12:20 pm-9:00 am

1 stop13h 40m

Lisbon Humberto Delgado

Fri 11/14

11:15 am-10:44 am

1 stop30h 29m

$611

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 11/30

11:15 am-2:50 pm

2 stops20h 35m

Lisbon Humberto Delgado

Fri 12/12

5:00 am-10:23 am

2 stops36h 23m

$616

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 11/5

4:05 pm-10:15 am

1 stop11h 10m

Lisbon Humberto Delgado

Mon 11/10

12:30 pm-4:00 pm

1 stop34h 30m

$618

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 11/2

7:00 am-8:00 am

2 stops18h 00m

Lisbon Humberto Delgado

Tue 11/11

5:30 am-10:46 pm

2 stops24h 16m

$620

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 11/2

5:45 pm-10:50 pm

1 stop22h 05m

Lisbon Humberto Delgado

Mon 11/17

3:55 pm-4:30 pm

2 stops31h 35m

$639

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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 $740. 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 $771.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $950. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Denver to Lisbon for around $1,154.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the morning when flights can be purchased for as low as $995. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,110 on average. Flights to Lisbon from Denver at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $974 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 $878 on momondo.

How have Denver to Lisbon flight prices changed over time?

As of August 2025, prices for Denver to Lisbon flights are approximately 39% 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

Best Price Found	$270
Fastest flight time	11h 10m
Direct flights	None
Airports in Lisbon	1 airport

The best one-way flight to Lisbon from Denver in the past 72 hours is $270. The best round-trip flight deal from Denver to Lisbon found on momondo in the last 72 hours is $527.

The fastest flight from Denver to Lisbon takes 11h 10m

There are no direct flights from Denver to Lisbon. Popular non-direct route for this connection is Denver Intl Airport - Lisbon Humberto Delgado Airport.

There is 1 airport near Lisbon: Lisbon Humberto Delgado (LIS)

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 11h 10m, 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 August 2025, 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 43% of the total bookings. Other popular airlines include British Airways with 13%, Lufthansa with 9%, and Delta 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 7.0 524 reviews	Search Icelandair flights
Virgin Atlantic	PriceFrom $539	Free Cancellation	Rating 7.4 655 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $548	Free Cancellation	Rating 8.0 7,987 reviews	Search Delta flights
British Airways	PriceFrom $555	Free Cancellation	Rating 6.6 7,235 reviews	Search British Airways flights
Turkish Airlines	PriceFrom $555	Free Cancellation	Rating 7.3 3,935 reviews	Search Turkish Airlines flights
Air France	PriceFrom $569	Free Cancellation	Rating 7.5 1,466 reviews	Search Air France flights
KLM	PriceFrom $599	Free Cancellation	Rating 7.8 1,381 reviews	Search KLM flights
Lufthansa	PriceFrom $624	Free Cancellation	Rating 6.8 7,286 reviews	Search Lufthansa flights
Air Canada	PriceFrom $635	Free Cancellation	Rating 7.1 9,883 reviews	Search Air Canada flights
United Airlines	PriceFrom $637	Free Cancellation	Rating 7.4 8,915 reviews	Search United Airlines flights

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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 $270

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 10/16. 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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Big names and deals

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Filter for what you want

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Find the cheapest flights from Denver to Lisbon

Cheap round-trip flights

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Delta flights from Denver to Lisbon

Our best Delta deals on Denver to Lisbon flight tickets

Icelandair flights from Denver to Lisbon

Our best Icelandair deals on Denver to Lisbon flight tickets

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

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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

What is the cheapest month to fly to Lisbon?

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $950. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Denver to Lisbon for around $1,154.

What is the cheapest time of day to depart on your flight 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 August 2025, prices for Denver to Lisbon flights are approximately 39% cheaper 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, Air Canada, and KLM are the most popular carriers 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?

Washington, D.C. (IAD) was the most common stop: 18% 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 $625.

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 23m.

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

Munich (MUC) has the shortest average layover time for this route: 1h 19m.

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

Best Price Found

Fastest flight time

Direct flights

Airports in Lisbon

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