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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $503.

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.

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

London (LHR) was the most common stop: 17% 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 41m.

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 52% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 11 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

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

United Airlines 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 September 2026, there are 11 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.

$319 Cheap Flights from Denver to Lisbon in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Lisbon

Round-trip

One-way

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Cheap round-trip flights

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3:40 pm - 12:50 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

14h 10m1 stop Reykjavik Keflavik Intl

2:00 pm - 6:00 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

35h 00m1 stop Reykjavik Keflavik Intl

$594Icelandair

Mon, Nov 23 - Tue, Dec 1

3:40 pm - 12:50 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

14h 10m1 stop Reykjavik Keflavik Intl

2:00 pm - 6:00 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

35h 00m1 stop Reykjavik Keflavik Intl

$596Icelandair

Sat, Jan 9 - Thu, Jan 14

11:25 am - 9:20 amDEN Denver Intl-LIS Lisbon Humberto Delgado

14h 55m1 stop Montreal Pierre Elliott Trudeau Intl

5:00 am - 3:35 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

17h 35m1 stop Frankfurt am Main

$697Multiple Airlines

Mon, Oct 19 - Wed, Nov 4

11:25 am - 9:20 amDEN Denver Intl-LIS Lisbon Humberto Delgado

14h 55m1 stop Montreal Pierre Elliott Trudeau Intl

5:00 am - 3:35 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

17h 35m1 stop Frankfurt am Main

$706Multiple Airlines

Tue, Oct 20 - Wed, Nov 4

4:15 pm - 11:30 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

24h 15m1 stop Munich Franz Josef Strauss

6:00 am - 2:30 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

15h 30m1 stop Munich Franz Josef Strauss

$712Lufthansa

Tue, Jan 19 - Fri, Jan 29

12:21 pm - 12:05 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

16h 44m2 stops Chicago O'Hare Intl London Heathrow

9:40 am - 9:11 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

18h 31m1 stop Philadelphia

$722British Airways

Tue, Dec 1 - Thu, Dec 10

11:25 am - 6:55 amDEN Denver Intl-LIS Lisbon Humberto Delgado

13h 30m1 stop Montreal Pierre Elliott Trudeau Intl

5:00 am - 3:35 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

17h 35m1 stop Frankfurt am Main

$723United Airlines

Wed, Oct 28 - Thu, Dec 3

11:25 am - 6:55 amDEN Denver Intl-LIS Lisbon Humberto Delgado

12h 30m1 stop Montreal Pierre Elliott Trudeau Intl

5:00 am - 1:40 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

15h 40m1 stop Frankfurt am Main

$723United Airlines

Wed, Nov 25 - Fri, Dec 4

4:48 pm - 11:30 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

23h 42m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

2:20 pm - 2:30 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

31h 10m1 stop Munich Franz Josef Strauss

$749Lufthansa

Wed, Nov 25 - Mon, Dec 7

6:01 pm - 12:05 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

36h 04m1 stop London Heathrow

6:35 pm - 3:10 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

27h 35m1 stop London Heathrow

$750British Airways

Tue, Oct 27 - Mon, Nov 2

Cheap last minute flights

Enter your travel dates to find the best prices.

8:00 pm - 9:35 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

18h 35m1 stop Dublin

10:55 am - 6:15 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

14h 20m1 stop Dublin

$1,021Aer Lingus

Fri, Sep 11 - Sun, Sep 13

8:00 pm - 9:35 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

18h 35m1 stop Dublin

11:25 am - 12:17 amLIS Lisbon Humberto Delgado-DEN Denver Intl

19h 52m2 stops Dublin Chicago O'Hare Intl

$1,179Aer Lingus

Fri, Sep 11 - Thu, Sep 24

12:15 pm - 8:00 amDEN Denver Intl-LIS Lisbon Humberto Delgado

12h 45m1 stop New York John F Kennedy Intl

5:35 am - 3:40 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

17h 05m1 stop Paris Charles de Gaulle

$1,257Delta

Wed, Sep 9 - Wed, Sep 23

11:25 am - 10:45 amDEN Denver Intl-LIS Lisbon Humberto Delgado

16h 20m1 stop Boston Logan Intl

5:35 am - 3:40 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

17h 05m1 stop Paris Charles de Gaulle

$1,257Delta

Wed, Sep 9 - Wed, Sep 23

5:40 pm - 5:50 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

17h 10m1 stop Paris Charles de Gaulle

5:35 am - 3:40 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

17h 05m1 stop Paris Charles de Gaulle

$1,257Air France

Wed, Sep 9 - Wed, Sep 16

5:40 pm - 5:50 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

17h 10m1 stop Paris Charles de Gaulle

5:35 am - 3:40 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

17h 05m1 stop Paris Charles de Gaulle

$1,257Air France

Wed, Sep 9 - Wed, Sep 23

6:40 pm - 11:05 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

21h 25m1 stop London Heathrow

7:20 am - 4:30 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

16h 10m1 stop London Heathrow

$1,324British Airways

Thu, Sep 10 - Wed, Sep 16

6:40 pm - 11:10 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

21h 30m1 stop London Heathrow

7:20 am - 4:30 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

16h 10m1 stop London Heathrow

$1,324British Airways

Fri, Sep 11 - Thu, Sep 24

5:40 pm - 3:35 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

14h 55m1 stop Frankfurt am Main

5:05 am - 3:40 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

17h 35m1 stop Frankfurt am Main

$5,796Lufthansa

Tue, Sep 8 - Thu, Sep 10

4:15 pm - 10:45 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

23h 30m1 stop Munich Franz Josef Strauss

6:45 am - 3:40 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

15h 55m1 stop Frankfurt am Main

$5,824Lufthansa

Fri, Sep 11 - Wed, Sep 16

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United Airlines flights from Denver to Lisbon

Our best United Airlines deals on Denver to Lisbon flight tickets

United Airlines

Oct 26

DEN11:25 amDenver Intl

17h 15m

1 stop

LIS10:40 amLisbon Humberto Delgado

Dec 3

LIS5:00 amLisbon Humberto Delgado

15h 40m

1 stop

DEN1:40 pmDenver Intl

$723

United Airlines

Oct 27

DEN12:35 pmDenver Intl

15h 30m

1 stop

LIS10:05 amLisbon Humberto Delgado

Nov 6

LIS5:00 amLisbon Humberto Delgado

15h 40m

1 stop

DEN1:40 pmDenver Intl

$724

United Airlines

Oct 27

DEN2:16 pmDenver Intl

11h 54m

1 stop

LIS8:10 amLisbon Humberto Delgado

Nov 6

LIS11:20 amLisbon Humberto Delgado

33h 29m

2 stops

DEN1:49 pmDenver Intl

$727

Delta flights from Denver to Lisbon

Our best Delta deals on Denver to Lisbon flight tickets

Delta

Oct 14

DEN12:15 pmDenver Intl

19h 40m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Nov 4

LIS5:00 amLisbon Humberto Delgado

19h 32m

2 stops

DEN5:32 pmDenver Intl

$740

Delta

Jan 13

DEN12:20 pmDenver Intl

12h 40m

1 stop

LIS8:00 amLisbon Humberto Delgado

Jan 20

LIS5:30 amLisbon Humberto Delgado

22h 04m

2 stops

DEN8:34 pmDenver Intl

$742

Delta

Jan 13

DEN6:10 amDenver Intl

18h 50m

2 stops

LIS8:00 amLisbon Humberto Delgado

Jan 19

LIS10:00 amLisbon Humberto Delgado

17h 34m

1 stop

DEN8:34 pmDenver Intl

$746

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Mon 11/23

3:40 pm-12:50 pm

1 stop14h 10m

Lisbon Humberto Delgado

Tue 12/1

2:00 pm-6:00 pm

1 stop35h 00m

$594

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Sat 1/9

3:40 pm-12:50 pm

1 stop14h 10m

Lisbon Humberto Delgado

Thu 1/14

2:00 pm-6:00 pm

1 stop35h 00m

$596

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Mon 10/19

11:25 am-9:20 am

1 stop14h 55m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-3:35 pm

1 stop17h 35m

$697

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Tue 10/20

11:25 am-9:20 am

1 stop14h 55m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-3:35 pm

1 stop17h 35m

$706

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Tue 1/19

4:15 pm-11:30 pm

1 stop24h 15m

Lisbon Humberto Delgado

Fri 1/29

6:00 am-2:30 pm

1 stop15h 30m

$712

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Tue 12/1

12:21 pm-12:05 pm

2 stops16h 44m

Lisbon Humberto Delgado

Thu 12/10

9:40 am-9:11 pm

1 stop18h 31m

$722

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Wed 10/28

11:25 am-6:55 am

1 stop13h 30m

Lisbon Humberto Delgado

Thu 12/3

5:00 am-3:35 pm

1 stop17h 35m

$723

Quickest round-trip

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Wed 11/25

11:25 am-6:55 am

1 stop12h 30m

Lisbon Humberto Delgado

Fri 12/4

5:00 am-1:40 pm

1 stop15h 40m

$723

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Wed 11/25

4:48 pm-11:30 pm

2 stops23h 42m

Lisbon Humberto Delgado

Mon 12/7

2:20 pm-2:30 pm

1 stop31h 10m

$749

DenverLisbon

DEN Denver Intl - LIS Lisbon Humberto Delgado

DENLIS

Denver Intl

Tue 10/27

6:01 pm-12:05 pm

1 stop36h 04m

Lisbon Humberto Delgado

Mon 11/2

6:35 pm-3:10 pm

1 stop27h 35m

$750

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 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 $957 to $1,203.
The lowest price recently found on this route was $594.

What is the cheapest month to fly to Lisbon?

In general, February 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 $630. If you are unable to visit Lisbon during the month of February, then departing from Denver during the month January is also very affordable. Most momondo users find prices during this month for around $640.

How far in advance should I book a flight from Denver 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 $940 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 $865 on momondo.

Can stopping save me money on Denver to Lisbon flights?

You could potentially save up to 13% on your flight if you consider stops on a Denver to Lisbon flight.

How have Denver to Lisbon flight prices changed over time?

As of September 2026, prices for Denver to Lisbon flights are approximately 42% 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	$319
Fastest flight time	11h 23m
Direct flights	None

The best one-way flight to Lisbon from Denver in the past 72 hours is $319. The best round-trip flight deal from Denver to Lisbon found on momondo in the last 72 hours is $594.

The fastest flight from Denver to Lisbon takes 11h 23m

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

Search flight deals

Frequently asked questions about flying from Denver to Lisbon

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 23m, 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 2026, there are 11 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 44% of the total bookings. Other popular airlines include British Airways with 17%, Lufthansa with 12%, and Air Canada with 11%.

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 $464	Free Cancellation	Rating 6.9 741 reviews	Search Icelandair flights
Lufthansa	PriceFrom $558	Free Cancellation	Rating 6.8 8,219 reviews	Search Lufthansa flights
United Airlines	PriceFrom $575	Free Cancellation	Rating 7.4 10,176 reviews	Search United Airlines flights
Air France	PriceFrom $575	Free Cancellation	Rating 7.5 1,649 reviews	Search Air France flights
Delta	PriceFrom $575	Free Cancellation	Rating 7.8 8,548 reviews	Search Delta flights
Virgin Atlantic	PriceFrom $575	Free Cancellation	Rating 7.4 694 reviews	Search Virgin Atlantic flights
KLM	PriceFrom $575	Free Cancellation	Rating 7.8 1,571 reviews	Search KLM flights
American Airlines	PriceFrom $630	Free Cancellation	Rating 7.1 12,042 reviews	Search American Airlines flights
British Airways	PriceFrom $632	Free Cancellation	Rating 6.7 8,209 reviews	Search British Airways flights
Turkish Airlines	PriceFrom $635	Free Cancellation	Rating 7.4 4,477 reviews	Search Turkish Airlines flights

Sintra

Figueira da Foz

Fátima

Nazaré

Setúbal

Estoril

Evora

Óbidos

Ericeira

Batalha

Leiria

Sesimbra

Zambujeira do Mar

Sines

Oeiras

Costa da Caparica

Comporta

Caldas da Rainha

Peniche

Tomar

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.

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Cheap flights from Denver to Lisbon from $319

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 10/18. 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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United Airlines flights from Denver to Lisbon

Our best United Airlines deals on Denver to Lisbon flight tickets

Delta flights from Denver to Lisbon

Our best Delta deals on Denver to Lisbon flight tickets

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See travel insights to Lisbon from

How to get the cheapest flight ticket from Denver to Lisbon

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

What is the cheapest month to fly to Lisbon?

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

Can stopping save me money on Denver to Lisbon flights?

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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?

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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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Lisbon

List of cabin classes available on flights landing in Lisbon. Availability may vary depending on flight origin and airline.

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