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Cheap flights from Denver to Lisbon from $259

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 2/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Denver to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
4:40 pm - 1:50 pm
DEN
-
LIS
14h 10m
1 stop
Icelandair Logo
10:20 pm - 12:40 pm
LIS
-
DEN
21h 20m
1 stop
$574Icelandair
Wed, May 6 - Thu, May 21
Lufthansa Logo
4:15 pm - 11:30 pm
DEN
-
LIS
24h 15m
2 stops
Lufthansa Logo
6:10 am - 11:21 pm
LIS
-
DEN
24h 11m
2 stops
$575Lufthansa
Mon, Feb 23 - Thu, Mar 5
Lufthansa Logo
4:21 pm - 10:15 pm
DEN
-
LIS
22h 54m
2 stops
Lufthansa Logo
7:25 am - 3:40 pm
LIS
-
DEN
15h 15m
1 stop
$576Lufthansa
Tue, Apr 28 - Wed, May 6
Lufthansa Logo
5:45 pm - 3:05 pm
DEN
-
LIS
14h 20m
1 stop
Lufthansa Logo
5:00 am - 4:00 pm
LIS
-
DEN
18h 00m
1 stop
$577Lufthansa
Thu, Feb 26 - Thu, Mar 5
United Airlines Logo
1:40 pm - 8:10 am
DEN
-
LIS
11h 30m
1 stop
United Airlines Logo
10:15 am - 6:08 pm
LIS
-
DEN
14h 53m
1 stop
$578United Airlines
Wed, Feb 18 - Fri, Feb 27
British Airways Logo
6:30 pm - 11:10 pm
DEN
-
LIS
21h 40m
2 stops
British Airways Logo
6:45 pm - 10:40 pm
LIS
-
DEN
34h 55m
2 stops
$580British Airways
Mon, Apr 20 - Mon, May 4
Lufthansa Logo
5:45 pm - 10:50 pm
DEN
-
LIS
22h 05m
1 stop
Lufthansa Logo
5:00 am - 9:55 pm
LIS
-
DEN
23h 55m
2 stops
$582Lufthansa
Sun, Feb 22 - Fri, Mar 6
Icelandair Logo
4:40 pm - 1:50 pm
DEN
-
LIS
14h 10m
1 stop
Icelandair Logo
3:00 pm - 7:00 pm
LIS
-
DEN
35h 00m
1 stop
$583Icelandair
Sat, Apr 25 - Sun, May 3
Lufthansa Logo
5:45 pm - 10:50 pm
DEN
-
LIS
22h 05m
1 stop
Lufthansa Logo
6:10 am - 11:21 pm
LIS
-
DEN
24h 11m
2 stops
$584Lufthansa
Sun, Feb 22 - Thu, Mar 5
United Airlines Logo
4:05 pm - 10:45 pm
DEN
-
LIS
23h 40m
1 stop
United Airlines Logo
7:25 am - 3:40 pm
LIS
-
DEN
15h 15m
1 stop
$585United Airlines
Mon, May 4 - Fri, May 8

Icelandair flights from Denver to Lisbon

Our best Icelandair deals on Denver to Lisbon flight tickets
Icelandair
May 6
DEN4:40 pmDenver Intl
14h 10m
1 stop
LIS1:50 pmLisbon Humberto Delgado
May 21
LIS10:20 pmLisbon Humberto Delgado
21h 20m
1 stop
DEN12:40 pmDenver Intl
$574
Icelandair
Apr 25
DEN4:40 pmDenver Intl
14h 10m
1 stop
LIS1:50 pmLisbon Humberto Delgado
May 3
LIS3:00 pmLisbon Humberto Delgado
35h 00m
1 stop
DEN7:00 pmDenver Intl
$583
Icelandair
May 13
DEN4:40 pmDenver Intl
14h 10m
1 stop
LIS1:50 pmLisbon Humberto Delgado
May 21
LIS10:20 pmLisbon Humberto Delgado
21h 20m
1 stop
DEN12:40 pmDenver Intl
$587

United Airlines flights from Denver to Lisbon

Our best United Airlines deals on Denver to Lisbon flight tickets
United Airlines
Feb 18
DEN1:40 pmDenver Intl
11h 30m
1 stop
LIS8:10 amLisbon Humberto Delgado
Feb 27
LIS10:15 amLisbon Humberto Delgado
14h 53m
1 stop
DEN6:08 pmDenver Intl
$578
United Airlines
May 4
DEN4:05 pmDenver Intl
23h 40m
1 stop
LIS10:45 pmLisbon Humberto Delgado
May 8
LIS7:25 amLisbon Humberto Delgado
15h 15m
1 stop
DEN3:40 pmDenver Intl
$585
United Airlines
May 3
DEN6:00 amDenver Intl
21h 30m
1 stop
LIS10:30 amLisbon Humberto Delgado
May 12
LIS7:25 amLisbon Humberto Delgado
15h 15m
1 stop
DEN3:40 pmDenver Intl
$601

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Denver to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 5/6

4:40 pm-1:50 pm

1 stop14h 10m

Lisbon Humberto Delgado

Thu 5/21

10:20 pm-12:40 pm

1 stop21h 20m

$574

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 2/23

4:15 pm-11:30 pm

2 stops24h 15m

Lisbon Humberto Delgado

Thu 3/5

6:10 am-11:21 pm

2 stops24h 11m

$575

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 4/28

4:21 pm-10:15 pm

2 stops22h 54m

Lisbon Humberto Delgado

Wed 5/6

7:25 am-3:40 pm

1 stop15h 15m

$576

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Thu 2/26

5:45 pm-3:05 pm

1 stop14h 20m

Lisbon Humberto Delgado

Thu 3/5

5:00 am-4:00 pm

1 stop18h 00m

$577

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 2/18

1:40 pm-8:10 am

1 stop11h 30m

Lisbon Humberto Delgado

Fri 2/27

10:15 am-6:08 pm

1 stop14h 53m

$578

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 4/20

6:30 pm-11:10 pm

2 stops21h 40m

Lisbon Humberto Delgado

Mon 5/4

6:45 pm-10:40 pm

2 stops34h 55m

$580

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 2/22

5:45 pm-10:50 pm

1 stop22h 05m

Lisbon Humberto Delgado

Fri 3/6

5:00 am-9:55 pm

2 stops23h 55m

$582

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sat 4/25

4:40 pm-1:50 pm

1 stop14h 10m

Lisbon Humberto Delgado

Sun 5/3

3:00 pm-7:00 pm

1 stop35h 00m

$583

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 2/22

5:45 pm-10:50 pm

1 stop22h 05m

Lisbon Humberto Delgado

Thu 3/5

6:10 am-11:21 pm

2 stops24h 11m

$584

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 5/4

4:05 pm-10:45 pm

1 stop23h 40m

Lisbon Humberto Delgado

Fri 5/8

7:25 am-3:40 pm

1 stop15h 15m

$585

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Lisbon from

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?

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 $658. 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 $710.

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 $914 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 $825 on momondo.

How have Denver to Lisbon flight prices changed over time?

As of February 2026, prices for Denver to Lisbon flights are approximately 21% 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 21m

Direct flights

None
The fastest flight from Denver to Lisbon takes 12h 21m
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 21m, 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?

  • 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?

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
IcelandairPriceFrom $458Free CancellationRating
7.1
606 reviews
Search Icelandair flights
British AirwaysPriceFrom $555Free CancellationRating
6.7
7,714 reviews
Search British Airways flights
LufthansaPriceFrom $559Free CancellationRating
6.8
7,759 reviews
Search Lufthansa flights
United AirlinesPriceFrom $574Free CancellationRating
7.4
9,235 reviews
Search United Airlines flights
DeltaPriceFrom $575Free CancellationRating
7.9
8,141 reviews
Search Delta flights
Turkish AirlinesPriceFrom $586Free CancellationRating
7.3
4,210 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $595Free CancellationRating
7.1
10,687 reviews
Search Air Canada flights
KLMPriceFrom $599Free CancellationRating
7.7
1,448 reviews
Search KLM flights
Virgin AtlanticPriceFrom $603Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
Air FrancePriceFrom $655Free CancellationRating
7.4
1,531 reviews
Search Air France flights

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Ericeira
Fátima
Nazaré
Setúbal
Estoril
Peniche
Evora
Oeiras
Leiria
Sesimbra
Tomar
Figueira da Foz
Zambujeira do Mar
Batalha
Óbidos
Comporta
Torres Vedras
Sines
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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