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Cheap flights from Denver to Lisbon from $249

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.
Multiple Airlines Logo
9:59 am - 8:10 am
DEN
-
LIS
15h 11m1 stop
Multiple Airlines Logo
5:00 am - 7:40 pm
LIS
-
DEN
21h 40m2 stops
$501Multiple Airlines
Tue, Jan 13 - Wed, Feb 18
Multiple Airlines Logo
9:59 am - 8:10 am
DEN
-
LIS
15h 11m1 stop
Multiple Airlines Logo
5:00 am - 4:00 pm
LIS
-
DEN
18h 00m1 stop
$511Multiple Airlines
Tue, Jan 13 - Wed, Feb 18
Lufthansa Logo
5:45 pm - 3:05 pm
DEN
-
LIS
14h 20m1 stop
Lufthansa Logo
5:00 am - 7:26 pm
LIS
-
DEN
21h 26m2 stops
$512Lufthansa
Sun, Jan 11 - Tue, Jan 27
Lufthansa Logo
5:45 pm - 3:05 pm
DEN
-
LIS
14h 20m1 stop
Lufthansa Logo
5:00 am - 1:40 pm
LIS
-
DEN
15h 40m1 stop
$522Lufthansa
Sun, Jan 11 - Tue, Jan 27
Lufthansa Logo
5:20 pm - 3:15 pm
DEN
-
LIS
15h 55m1 stop
Lufthansa Logo
5:05 am - 3:40 pm
LIS
-
DEN
17h 35m1 stop
$527Lufthansa
Mon, Mar 16 - Wed, Apr 1
Lufthansa Logo
5:45 pm - 3:40 pm
DEN
-
LIS
14h 55m1 stop
Lufthansa Logo
6:10 am - 2:35 pm
LIS
-
DEN
15h 25m1 stop
$540Lufthansa
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
3:40 pm - 9:00 pm
DEN
-
LIS
22h 20m2 stops
Multiple Airlines Logo
6:25 am - 6:05 pm
LIS
-
DEN
18h 40m2 stops
$544Multiple Airlines
Fri, Feb 27 - Fri, Mar 6
United Airlines Logo
7:45 am - 8:10 am
DEN
-
LIS
17h 25m1 stop
United Airlines Logo
5:00 am - 1:40 pm
LIS
-
DEN
15h 40m1 stop
$549United Airlines
Sun, Jan 11 - Tue, Jan 27
United Airlines Logo
9:59 am - 8:10 am
DEN
-
LIS
15h 11m1 stop
United Airlines Logo
5:00 am - 1:40 pm
LIS
-
DEN
15h 40m1 stop
$550United Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
1:25 pm - 9:20 am
DEN
-
LIS
12h 55m1 stop
Multiple Airlines Logo
11:20 am - 10:23 am
LIS
-
DEN
30h 03m1 stop
$551Multiple Airlines
Sun, Jan 25 - Wed, Feb 4

Lufthansa flights from Denver to Lisbon

Our best Lufthansa deals on Denver to Lisbon flight tickets
Lufthansa
Jan 11
DEN5:45 pmDenver Intl
14h 20m
1 stop
LIS3:05 pmLisbon Humberto Delgado
Jan 27
LIS5:00 amLisbon Humberto Delgado
21h 26m
2 stops
DEN7:26 pmDenver Intl
$512
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
$522
Find similar
Lufthansa
Mar 16
DEN5:20 pmDenver Intl
15h 55m
1 stop
LIS3:15 pmLisbon Humberto Delgado
Apr 1
LIS5:05 amLisbon Humberto Delgado
17h 35m
1 stop
DEN3:40 pmDenver Intl
$527
Find similar

United Airlines flights from Denver to Lisbon

Our best United Airlines deals on Denver to Lisbon flight tickets
United Airlines
Jan 11
DEN7:45 amDenver Intl
17h 25m
1 stop
LIS8:10 amLisbon Humberto Delgado
Jan 27
LIS5:00 amLisbon Humberto Delgado
15h 40m
1 stop
DEN1:40 pmDenver Intl
$549
Find similar
United Airlines
Jan 11
DEN9:59 amDenver Intl
15h 11m
1 stop
LIS8:10 amLisbon Humberto Delgado
Jan 27
LIS5:00 amLisbon Humberto Delgado
15h 40m
1 stop
DEN1:40 pmDenver Intl
$550
Find similar
United Airlines
Feb 17
DEN11:15 amDenver Intl
15h 05m
1 stop
LIS9:20 amLisbon Humberto Delgado
Mar 5
LIS5:00 amLisbon Humberto Delgado
18h 00m
1 stop
DEN4:00 pmDenver Intl
$552
Find similar

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 December 18, 2025.
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

Tue 1/13

9:59 am-8:10 am

1 stop15h 11m

Lisbon Humberto Delgado

Wed 2/18

5:00 am-7:40 pm

2 stops21h 40m

$501

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 1/13

9:59 am-8:10 am

1 stop15h 11m

Lisbon Humberto Delgado

Wed 2/18

5:00 am-4:00 pm

1 stop18h 00m

$511

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-7:26 pm

2 stops21h 26m

$512

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

$522

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 3/16

5:20 pm-3:15 pm

1 stop15h 55m

Lisbon Humberto Delgado

Wed 4/1

5:05 am-3:40 pm

1 stop17h 35m

$527

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

5:45 pm-3:40 pm

1 stop14h 55m

Lisbon Humberto Delgado

Tue 1/27

6:10 am-2:35 pm

1 stop15h 25m

$540

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Fri 2/27

3:40 pm-9:00 pm

2 stops22h 20m

Lisbon Humberto Delgado

Fri 3/6

6:25 am-6:05 pm

2 stops18h 40m

$544

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

7:45 am-8:10 am

1 stop17h 25m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-1:40 pm

1 stop15h 40m

$549

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

$550

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/25

1:25 pm-9:20 am

1 stop12h 55m

Lisbon Humberto Delgado

Wed 2/4

11:20 am-10:23 am

1 stop30h 03m

$551

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 $662. If you are unable to visit Lisbon during the month of November, then departing from Denver during the month February is also very affordable. Most momondo users find prices during this month for around $707.

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 $936 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 $824 on momondo.

How have Denver to Lisbon flight prices changed over time?

As of December 2025, prices for Denver to Lisbon flights are approximately 34% 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

13h 49m

Direct flights

None
The fastest flight from Denver to Lisbon takes 13h 49m
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 13h 49m, 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
7.0
591 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom $539Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $551Free CancellationRating
7.9
8,005 reviews
Search Delta flights
British AirwaysPriceFrom $555Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
LufthansaPriceFrom $565Free CancellationRating
6.8
7,635 reviews
Search Lufthansa flights
Air FrancePriceFrom $569Free CancellationRating
7.4
1,507 reviews
Search Air France flights
KLMPriceFrom $575Free CancellationRating
7.7
1,428 reviews
Search KLM flights
Turkish AirlinesPriceFrom $586Free CancellationRating
7.3
4,105 reviews
Search Turkish Airlines flights
American AirlinesPriceFrom $594Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
Air CanadaPriceFrom $596Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights

Traveling to a place near Lisbon?

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

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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