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

New York (JFK) was the most common stop: 17% of momondo users choosing 1-stop flights on this route connected there.

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

Munich (MUC) has the shortest average layover time for this route: 1h 17m.

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

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 December 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.

$261 Cheap Flights from Denver to Lisbon in 2025/26

Q: What is the typical price of a round-trip flight between Denver and Lisbon?

Prices are currently low for flights on this route. Typical prices usually range from $1,099 to $1,716. The lowest price recently found on this route was $437.

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3:40 pm - 8:20 pmDEN-LIS

21h 40m1 stop

9:20 pm - 7:05 pmLIS-DEN

27h 45m1 stop

$437Icelandair

Find Deal

Sat, Feb 28 - Sun, Mar 8

3:40 pm - 8:20 pmDEN-LIS

21h 40m1 stop

9:20 pm - 6:05 pmLIS-DEN

27h 45m1 stop

$464Icelandair

Find Deal

Sat, Feb 28 - Thu, Mar 5

6:10 pm - 8:10 amDEN-LIS

31h 00m2 stops

5:00 am - 1:40 pmLIS-DEN

15h 40m1 stop

$466Lufthansa

Find Deal

Sun, Jan 11 - Tue, Jan 27

9:59 am - 8:10 amDEN-LIS

15h 11m1 stop

5:00 am - 7:26 pmLIS-DEN

21h 26m2 stops

$471Multiple Airlines

Find Deal

Sun, Jan 11 - Tue, Jan 27

9:59 am - 8:10 amDEN-LIS

15h 11m1 stop

5:00 am - 7:26 pmLIS-DEN

21h 26m2 stops

$473Multiple Airlines

Find Deal

Sun, Jan 11 - Tue, Jan 27

9:59 am - 8:10 amDEN-LIS

15h 11m1 stop

5:00 am - 1:40 pmLIS-DEN

15h 40m1 stop

$480Multiple Airlines

Find Deal

Sun, Jan 11 - Tue, Jan 27

9:59 am - 8:10 amDEN-LIS

15h 11m1 stop

5:00 am - 1:40 pmLIS-DEN

15h 40m1 stop

$481Multiple Airlines

Find Deal

Sun, Jan 11 - Tue, Jan 27

9:59 am - 8:10 amDEN-LIS

15h 11m1 stop

5:00 am - 1:40 pmLIS-DEN

15h 40m1 stop

$482Multiple Airlines

Find Deal

Sun, Jan 11 - Tue, Jan 27

5:45 pm - 3:05 pmDEN-LIS

14h 20m1 stop

5:00 am - 1:40 pmLIS-DEN

15h 40m1 stop

$494Lufthansa

Find Deal

Sun, Jan 11 - Tue, Jan 27

8:05 am - 9:20 amDEN-LIS

18h 15m2 stops

6:10 am - 2:35 pmLIS-DEN

15h 25m1 stop

$495Multiple Airlines

Find Deal

Tue, Feb 3 - Tue, Feb 10

Icelandair flights from Denver to Lisbon

Our best Icelandair deals on Denver to Lisbon flight tickets

Icelandair

Feb 28

DEN3:40 pmDenver Intl

21h 40m

1 stop

LIS8:20 pmLisbon Humberto Delgado

Mar 8

LIS9:20 pmLisbon Humberto Delgado

27h 45m

1 stop

DEN7:05 pmDenver Intl

$437

Find similar

Icelandair

Feb 28

DEN3:40 pmDenver Intl

21h 40m

1 stop

LIS8:20 pmLisbon Humberto Delgado

Mar 5

LIS9:20 pmLisbon Humberto Delgado

27h 45m

1 stop

DEN6:05 pmDenver Intl

$464

Find similar

Lufthansa flights from Denver to Lisbon

Our best Lufthansa deals on Denver to Lisbon flight tickets

Lufthansa

Jan 11

DEN6:10 pmDenver Intl

31h 00m

2 stops

LIS8:10 amLisbon Humberto Delgado

Jan 27

LIS5:00 amLisbon Humberto Delgado

15h 40m

1 stop

DEN1:40 pmDenver Intl

$466

Find similar

Lufthansa

Jan 11

DEN5:45 pmDenver Intl

14h 20m

1 stop

LIS3:05 pmLisbon Humberto Delgado

Jan 27

LIS5:00 amLisbon Humberto Delgado

15h 40m

1 stop

DEN1:40 pmDenver Intl

$494

Find similar

Lufthansa

Dec 3

DEN11:15 amDenver Intl

16h 00m

1 stop

LIS10:15 amLisbon Humberto Delgado

Dec 10

LIS5:00 amLisbon Humberto Delgado

18h 30m

2 stops

DEN4:30 pmDenver Intl

$495

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sat 2/28

3:40 pm-8:20 pm

1 stop21h 40m

Lisbon Humberto Delgado

Sun 3/8

9:20 pm-7:05 pm

1 stop27h 45m

$437

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sat 2/28

3:40 pm-8:20 pm

1 stop21h 40m

Lisbon Humberto Delgado

Thu 3/5

9:20 pm-6:05 pm

1 stop27h 45m

$464

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

6:10 pm-8:10 am

2 stops31h 00m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-1:40 pm

1 stop15h 40m

$466

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

9:59 am-8:10 am

1 stop15h 11m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-7:26 pm

2 stops21h 26m

$471

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

9:59 am-8:10 am

1 stop15h 11m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-7:26 pm

2 stops21h 26m

$473

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

9:59 am-8:10 am

1 stop15h 11m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-1:40 pm

1 stop15h 40m

$480

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

9:59 am-8:10 am

1 stop15h 11m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-1:40 pm

1 stop15h 40m

$481

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

9:59 am-8:10 am

1 stop15h 11m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-1:40 pm

1 stop15h 40m

$482

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

5:45 pm-3:05 pm

1 stop14h 20m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-1:40 pm

1 stop15h 40m

$494

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 2/3

8:05 am-9:20 am

2 stops18h 15m

Lisbon Humberto Delgado

Tue 2/10

6:10 am-2:35 pm

1 stop15h 25m

$495

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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 typical price of a round-trip flight between Denver and Lisbon?

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 $676. If you are unable to visit Lisbon during the month of November, then departing from Denver during the month January is also very affordable. Most momondo users find prices during this month for around $740.

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 $942 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 December 2025, prices for Denver to Lisbon flights are approximately 24% 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	11h 10m
Direct flights	None

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

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 39m, 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 December 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 45% of the total bookings. Other popular airlines include British Airways with 12%, 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 7.0 584 reviews	Search Icelandair flights
Virgin Atlantic	PriceFrom $539	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $551	Free Cancellation	Rating 7.9 8,010 reviews	Search Delta flights
Turkish Airlines	PriceFrom $555	Free Cancellation	Rating 7.3 4,071 reviews	Search Turkish Airlines flights
British Airways	PriceFrom $555	Free Cancellation	Rating 6.7 7,549 reviews	Search British Airways flights
Lufthansa	PriceFrom $565	Free Cancellation	Rating 6.8 7,602 reviews	Search Lufthansa flights
Air France	PriceFrom $569	Free Cancellation	Rating 7.4 1,500 reviews	Search Air France flights
KLM	PriceFrom $575	Free Cancellation	Rating 7.7 1,425 reviews	Search KLM flights
American Airlines	PriceFrom $594	Free Cancellation	Rating 7.2 11,041 reviews	Search American Airlines flights
Air Canada	PriceFrom $596	Free Cancellation	Rating 7.1 10,493 reviews	Search Air Canada 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 $261

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 1/7. 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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Icelandair flights from Denver to Lisbon

Our best Icelandair deals on Denver to Lisbon flight tickets

Lufthansa flights from Denver to Lisbon

Our best Lufthansa 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 typical price of a round-trip flight between Denver and Lisbon?

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 December 2025, prices for Denver to Lisbon flights are approximately 24% 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?

New York (JFK) was the most common stop: 17% 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 17m.

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