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Cheap flights from Denver to Lisbon from $370

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 9/12. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
8:25 pm - 9:50 am
DEN
-
LIS
30h 25m
1 stop
Turkish Airlines Logo
4:45 pm - 6:25 pm
LIS
-
DEN
32h 40m
1 stop
$750Turkish Airlines
Tue, Oct 6 - Wed, Oct 21
Turkish Airlines Logo
8:25 pm - 3:35 pm
DEN
-
LIS
36h 10m
1 stop
Turkish Airlines Logo
10:55 am - 6:25 pm
LIS
-
DEN
38h 30m
1 stop
$751Turkish Airlines
Sat, Aug 1 - Mon, Aug 31
Turkish Airlines Logo
8:25 pm - 9:55 am
DEN
-
LIS
30h 30m
1 stop
Turkish Airlines Logo
5:55 am - 6:25 pm
LIS
-
DEN
19h 30m
1 stop
$766Turkish Airlines
Sun, Oct 4 - Thu, Oct 22
Turkish Airlines Logo
8:25 pm - 3:35 pm
DEN
-
LIS
36h 10m
1 stop
Turkish Airlines Logo
5:05 pm - 6:25 pm
LIS
-
DEN
32h 20m
1 stop
$769Turkish Airlines
Thu, Sep 3 - Sat, Sep 12
Turkish Airlines Logo
8:25 pm - 11:20 pm
DEN
-
LIS
19h 55m
1 stop
Turkish Airlines Logo
5:05 pm - 6:25 pm
LIS
-
DEN
32h 20m
1 stop
$771Turkish Airlines
Thu, Aug 20 - Sat, Sep 5
Turkish Airlines Logo
8:25 pm - 11:20 pm
DEN
-
LIS
19h 55m
1 stop
Turkish Airlines Logo
5:55 am - 6:25 pm
LIS
-
DEN
19h 30m
1 stop
$772Turkish Airlines
Tue, Apr 28 - Tue, May 5
United Airlines Logo
9:40 am - 9:20 am
DEN
-
LIS
16h 40m
1 stop
United Airlines Logo
5:00 am - 4:00 pm
LIS
-
DEN
18h 00m
1 stop
$773United Airlines
Wed, Oct 14 - Wed, Nov 4
Turkish Airlines Logo
8:25 pm - 3:35 pm
DEN
-
LIS
36h 10m
1 stop
Turkish Airlines Logo
5:55 am - 6:25 pm
LIS
-
DEN
19h 30m
1 stop
$774Turkish Airlines
Thu, Sep 3 - Sat, Sep 19
United Airlines Logo
11:59 pm - 10:30 am
DEN
-
LIS
27h 31m
1 stop
United Airlines Logo
11:25 am - 10:34 am
LIS
-
DEN
30h 09m
1 stop
$778United Airlines
Mon, Apr 27 - Wed, May 6
Multiple Airlines Logo
6:30 pm - 11:00 pm
DEN
-
LIS
21h 30m
1 stop
Multiple Airlines Logo
12:30 pm - 11:45 pm
LIS
-
DEN
18h 15m
2 stops
$782Multiple Airlines
Tue, Apr 28 - Fri, May 8

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Turkish Airlines flights from Denver to Lisbon

Our best Turkish Airlines deals on Denver to Lisbon flight tickets
Turkish Airlines
Apr 28
DEN8:25 pmDenver Intl
19h 55m
1 stop
LIS11:20 pmLisbon Humberto Delgado
May 5
LIS5:55 amLisbon Humberto Delgado
19h 30m
1 stop
DEN6:25 pmDenver Intl
$729
Turkish Airlines
Apr 28
DEN8:25 pmDenver Intl
19h 55m
1 stop
LIS11:20 pmLisbon Humberto Delgado
May 4
LIS4:45 pmLisbon Humberto Delgado
32h 40m
1 stop
DEN6:25 pmDenver Intl
$750
Turkish Airlines
Apr 26
DEN8:25 pmDenver Intl
36h 10m
1 stop
LIS3:35 pmLisbon Humberto Delgado
May 11
LIS4:45 pmLisbon Humberto Delgado
32h 40m
1 stop
DEN6:25 pmDenver Intl
$760

United Airlines flights from Denver to Lisbon

Our best United Airlines deals on Denver to Lisbon flight tickets
United Airlines
Apr 25
DEN11:59 pmDenver Intl
27h 31m
1 stop
LIS10:30 amLisbon Humberto Delgado
May 5
LIS11:25 amLisbon Humberto Delgado
30h 09m
1 stop
DEN10:34 amDenver Intl
$778
United Airlines
Apr 26
DEN6:00 amDenver Intl
21h 30m
1 stop
LIS10:30 amLisbon Humberto Delgado
May 6
LIS5:05 amLisbon Humberto Delgado
25h 44m
2 stops
DEN11:49 pmDenver Intl
$784
United Airlines
Apr 27
DEN12:34 pmDenver Intl
14h 56m
2 stops
LIS10:30 amLisbon Humberto Delgado
May 6
LIS5:05 amLisbon Humberto Delgado
25h 44m
2 stops
DEN11:49 pmDenver Intl
$789

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 April 18, 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

Cheapest round-trip

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 10/6

8:25 pm-9:50 am

1 stop30h 25m

Lisbon Humberto Delgado

Wed 10/21

4:45 pm-6:25 pm

1 stop32h 40m

$750

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sat 8/1

8:25 pm-3:35 pm

1 stop36h 10m

Lisbon Humberto Delgado

Mon 8/31

10:55 am-6:25 pm

1 stop38h 30m

$751

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 10/4

8:25 pm-9:55 am

1 stop30h 30m

Lisbon Humberto Delgado

Thu 10/22

5:55 am-6:25 pm

1 stop19h 30m

$766

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Thu 9/3

8:25 pm-3:35 pm

1 stop36h 10m

Lisbon Humberto Delgado

Sat 9/12

5:05 pm-6:25 pm

1 stop32h 20m

$769

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Thu 8/20

8:25 pm-11:20 pm

1 stop19h 55m

Lisbon Humberto Delgado

Sat 9/5

5:05 pm-6:25 pm

1 stop32h 20m

$771

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 4/28

8:25 pm-11:20 pm

1 stop19h 55m

Lisbon Humberto Delgado

Tue 5/5

5:55 am-6:25 pm

1 stop19h 30m

$772
Quickest round-trip

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 10/14

9:40 am-9:20 am

1 stop16h 40m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-4:00 pm

1 stop18h 00m

$773

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Thu 9/3

8:25 pm-3:35 pm

1 stop36h 10m

Lisbon Humberto Delgado

Sat 9/19

5:55 am-6:25 pm

1 stop19h 30m

$774

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 4/27

11:59 pm-10:30 am

1 stop27h 31m

Lisbon Humberto Delgado

Wed 5/6

11:25 am-10:34 am

1 stop30h 09m

$778

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 4/28

6:30 pm-11:00 pm

1 stop21h 30m

Lisbon Humberto Delgado

Fri 5/8

12:30 pm-11:45 pm

2 stops18h 15m

$782

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

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 $626. 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 $630.

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 $897 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 $766 on momondo.

How have Denver to Lisbon flight prices changed over time?

As of April 2026, prices for Denver to Lisbon flights are approximately 17% 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

16h 15m

Direct flights

None
The fastest flight from Denver to Lisbon takes 16h 15m
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 16h 15m, 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 $464Free CancellationRating
7.0
636 reviews
Search Icelandair flights
LufthansaPriceFrom $559Free CancellationRating
6.8
7,930 reviews
Search Lufthansa flights
DeltaPriceFrom $575Free CancellationRating
7.9
8,423 reviews
Search Delta flights
United AirlinesPriceFrom $575Free CancellationRating
7.4
9,604 reviews
Search United Airlines flights
Air CanadaPriceFrom $595Free CancellationRating
7.1
10,936 reviews
Search Air Canada flights
KLMPriceFrom $599Free CancellationRating
7.8
1,502 reviews
Search KLM flights
Virgin AtlanticPriceFrom $603Free CancellationRating
7.5
687 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom $606Free CancellationRating
6.7
7,891 reviews
Search British Airways flights
American AirlinesPriceFrom $630Free CancellationRating
7.1
11,612 reviews
Search American Airlines flights
Turkish AirlinesPriceFrom $640Free CancellationRating
7.3
4,307 reviews
Search Turkish Airlines flights

Traveling to a place near Lisbon?

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

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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