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 connection time from Denver to Lisbon?

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

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.

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 14 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

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 September 2025, there are 14 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.

$264 Cheap Flights from Denver to Lisbon in 2025/26

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Round-trip

One-way

Last minute

Cheap round-trip flights

10:34 am - 8:00 amDEN-LIS

14h 26m2 stops

5:00 am - 3:25 pmLIS-DEN

17h 25m2 stops

$645KLM

Find Deal

Wed, Nov 12 - Sat, Nov 22

6:45 pm - 3:05 pmDEN-LIS

14h 20m1 stop

5:00 am - 4:30 pmLIS-DEN

18h 30m2 stops

$646Lufthansa

Find Deal

Sun, Oct 26 - Sat, Nov 8

11:40 am - 10:45 amDEN-LIS

16h 05m1 stop

5:00 am - 9:41 pmLIS-DEN

22h 41m2 stops

$651Delta

Find Deal

Tue, Oct 21 - Sat, Nov 1

11:15 am - 8:55 amDEN-LIS

14h 40m1 stop

5:00 am - 5:44 pmLIS-DEN

19h 44m2 stops

$654Air Canada

Find Deal

Sat, Nov 8 - Sun, Nov 23

6:00 am - 9:00 amDEN-LIS

20h 00m2 stops

5:00 am - 10:38 pmLIS-DEN

24h 38m2 stops

$655Delta

Find Deal

Mon, Nov 10 - Sat, Nov 22

11:15 am - 8:55 amDEN-LIS

14h 40m1 stop

11:20 am - 7:55 pmLIS-DEN

15h 35m1 stop

$660United Airlines

Find Deal

Sat, Feb 21 - Sat, Feb 28

11:15 am - 9:20 amDEN-LIS

15h 05m1 stop

11:55 am - 12:15 amLIS-DEN

18h 20m1 stop

$661United Airlines

Find Deal

Tue, Oct 21 - Tue, Oct 28

8:25 pm - 8:55 amDEN-LIS

29h 30m2 stops

11:20 am - 10:23 amLIS-DEN

30h 03m2 stops

$667Air Canada

Find Deal

Fri, Jan 9 - Sat, Jan 17

5:25 pm - 10:25 pmDEN-LIS

22h 00m1 stop

10:35 am - 3:30 pmLIS-DEN

35h 55m1 stop

$683British Airways

Find Deal

Fri, Nov 14 - Tue, Nov 25

6:35 pm - 5:55 pmDEN-LIS

16h 20m1 stop

11:05 am - 9:55 pmLIS-DEN

16h 50m1 stop

$688British Airways

Find Deal

Mon, Oct 13 - Tue, Oct 28

Air France flights from Denver to Lisbon

Our best Air France deals on Denver to Lisbon flight tickets

Air France

Nov 11

DEN11:34 amDenver Intl

16h 46m

2 stops

LIS11:20 amLisbon Humberto Delgado

Nov 24

LIS5:30 amLisbon Humberto Delgado

19h 21m

2 stops

DEN5:51 pmDenver Intl

$648

Find similar

Air France

Nov 11

DEN11:34 amDenver Intl

16h 46m

2 stops

LIS11:20 amLisbon Humberto Delgado

Nov 24

LIS5:30 amLisbon Humberto Delgado

18h 55m

2 stops

DEN5:25 pmDenver Intl

$650

Find similar

Air France

Nov 10

DEN11:34 amDenver Intl

14h 26m

2 stops

LIS9:00 amLisbon Humberto Delgado

Nov 24

LIS5:30 amLisbon Humberto Delgado

18h 55m

2 stops

DEN5:25 pmDenver Intl

$653

Find similar

Delta flights from Denver to Lisbon

Our best Delta deals on Denver to Lisbon flight tickets

Delta

Oct 21

DEN11:40 amDenver Intl

16h 05m

1 stop

LIS10:45 amLisbon Humberto Delgado

Nov 1

LIS5:00 amLisbon Humberto Delgado

22h 41m

2 stops

DEN9:41 pmDenver Intl

$651

Find similar

Delta

Nov 10

DEN6:00 amDenver Intl

20h 00m

2 stops

LIS9:00 amLisbon Humberto Delgado

Nov 22

LIS5:00 amLisbon Humberto Delgado

24h 38m

2 stops

DEN10:38 pmDenver Intl

$655

Find similar

Delta

Sep 28

DEN5:40 pmDenver Intl

14h 10m

1 stop

LIS2:50 pmLisbon Humberto Delgado

Oct 8

LIS5:00 amLisbon Humberto Delgado

20h 19m

2 stops

DEN6:19 pmDenver Intl

$661

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 11/12

10:34 am-8:00 am

2 stops14h 26m

Lisbon Humberto Delgado

Sat 11/22

5:00 am-3:25 pm

2 stops17h 25m

$645

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 10/26

6:45 pm-3:05 pm

1 stop14h 20m

Lisbon Humberto Delgado

Sat 11/8

5:00 am-4:30 pm

2 stops18h 30m

$646

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 10/21

11:40 am-10:45 am

1 stop16h 05m

Lisbon Humberto Delgado

Sat 11/1

5:00 am-9:41 pm

2 stops22h 41m

$651

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sat 11/8

11:15 am-8:55 am

1 stop14h 40m

Lisbon Humberto Delgado

Sun 11/23

5:00 am-5:44 pm

2 stops19h 44m

$654

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 11/10

6:00 am-9:00 am

2 stops20h 00m

Lisbon Humberto Delgado

Sat 11/22

5:00 am-10:38 pm

2 stops24h 38m

$655

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sat 2/21

11:15 am-8:55 am

1 stop14h 40m

Lisbon Humberto Delgado

Sat 2/28

11:20 am-7:55 pm

1 stop15h 35m

$660

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 10/21

11:15 am-9:20 am

1 stop15h 05m

Lisbon Humberto Delgado

Tue 10/28

11:55 am-12:15 am

1 stop18h 20m

$661

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Fri 1/9

8:25 pm-8:55 am

2 stops29h 30m

Lisbon Humberto Delgado

Sat 1/17

11:20 am-10:23 am

2 stops30h 03m

$667

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Fri 11/14

5:25 pm-10:25 pm

1 stop22h 00m

Lisbon Humberto Delgado

Tue 11/25

10:35 am-3:30 pm

1 stop35h 55m

$683

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 10/13

6:35 pm-5:55 pm

1 stop16h 20m

Lisbon Humberto Delgado

Tue 10/28

11:05 am-9:55 pm

1 stop16h 50m

$688

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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 $727. 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 $776.

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 $960 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 $800 on momondo.

How have Denver to Lisbon flight prices changed over time?

As of September 2025, prices for Denver to Lisbon flights are approximately 13% 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

Direct flights	None

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 11h 25m, 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 September 2025, there are 14 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 12%, Lufthansa with 10%, and Air Canada with 6%.

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 7.0 545 reviews	Search Icelandair flights
Virgin Atlantic	PriceFrom $539	Free Cancellation	Rating 7.4 664 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $548	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
Turkish Airlines	PriceFrom $555	Free Cancellation	Rating 7.3 3,965 reviews	Search Turkish Airlines flights
Air France	PriceFrom $569	Free Cancellation	Rating 7.4 1,468 reviews	Search Air France flights
Scandinavian Airlines	PriceFrom $582	Free Cancellation	Rating 7.4 1,486 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom $598	Free Cancellation	Rating 6.7 7,367 reviews	Search British Airways flights
KLM	PriceFrom $599	Free Cancellation	Rating 7.8 1,386 reviews	Search KLM flights
Lufthansa	PriceFrom $621	Free Cancellation	Rating 6.8 7,409 reviews	Search Lufthansa flights
United Airlines	PriceFrom $625	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights

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Fátima

Ericeira

Nazaré

Oeiras

Setúbal

Peniche

Almada

Leiria

Tomar

Estoril

Sesimbra

Evora

Figueira da Foz

Zambujeira do Mar

Torres Vedras

Batalha

Óbidos

Comporta

Costa da Caparica

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 $264

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 11/3. 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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Air France flights from Denver to Lisbon

Our best Air France deals on Denver to Lisbon flight tickets

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Our best Delta deals on Denver to Lisbon flight tickets

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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 September 2025, prices for Denver to Lisbon flights are approximately 13% cheaper when compared to flights at the same time last year.

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 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 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

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