Cheap flights from Lisbon to Denver from $400

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to Denver departing on 9/25. 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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0 bags

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Cheap round-trip flights

 Logo
9:25 am - 5:59 pmLIS-DEN
15h 34m1 stop
 Logo
7:55 pm - 5:00 pmDEN-LIS
14h 05m1 stop
Fri, Sep 12 - Fri, Sep 19
 Logo
9:25 am - 6:55 pmLIS-DEN
16h 30m2 stops
 Logo
4:40 pm - 9:05 pmDEN-LIS
21h 25m2 stops
Thu, Sep 11 - Thu, Sep 18
KLM Logo
8:55 am - 7:54 pmLIS-DEN
17h 59m2 stops
KLM Logo
11:20 am - 10:45 amDEN-LIS
16h 25m1 stop
$774KLM
Find Deal
Sat, Sep 13 - Sat, Sep 20
Delta Logo
5:00 am - 3:28 pmLIS-DEN
17h 28m2 stops
Delta Logo
12:11 pm - 2:50 pmDEN-LIS
19h 39m2 stops
$776Delta
Find Deal
Wed, Aug 27 - Fri, Sep 5
Delta Logo
5:40 am - 3:30 pmLIS-DEN
16h 50m1 stop
Delta Logo
12:11 pm - 2:50 pmDEN-LIS
19h 39m2 stops
$777Delta
Find Deal
Tue, Aug 26 - Thu, Sep 4
Air France Logo
5:40 am - 3:30 pmLIS-DEN
16h 50m1 stop
Air France Logo
5:40 pm - 5:50 pmDEN-LIS
17h 10m1 stop
$782Air France
Find Deal
Thu, Sep 11 - Sun, Sep 14
Air France Logo
5:40 am - 3:30 pmLIS-DEN
16h 50m1 stop
Air France Logo
12:11 pm - 8:00 amDEN-LIS
12h 49m1 stop
$790Air France
Find Deal
Tue, Aug 26 - Wed, Sep 3
KLM Logo
5:00 am - 3:28 pmLIS-DEN
17h 28m2 stops
KLM Logo
11:40 am - 8:00 amDEN-LIS
13h 20m1 stop
$795KLM
Find Deal
Fri, Aug 29 - Thu, Nov 13
British Airways Logo
11:05 am - 9:50 pmLIS-DEN
17h 45m1 stop
British Airways Logo
6:35 pm - 11:10 pmDEN-LIS
21h 35m1 stop
$835British Airways
Find Deal
Fri, Sep 5 - Fri, Sep 19
British Airways Logo
11:05 am - 9:55 pmLIS-DEN
17h 50m1 stop
British Airways Logo
2:17 pm - 11:05 pmDEN-LIS
25h 48m2 stops
$837British Airways
Find Deal
Mon, Aug 25 - Sun, Sep 7

Delta flights from Lisbon to Denver

Our best Delta deals on Lisbon to Denver flight tickets
Delta
Aug 27
LIS5:00 amLisbon Humberto Delgado
17h 28m
2 stops
DEN3:28 pmDenver Intl
Sep 5
DEN12:11 pmDenver Intl
19h 39m
2 stops
LIS2:50 pmLisbon Humberto Delgado
Delta
Aug 26
LIS5:40 amLisbon Humberto Delgado
16h 50m
1 stop
DEN3:30 pmDenver Intl
Sep 4
DEN12:11 pmDenver Intl
19h 39m
2 stops
LIS2:50 pmLisbon Humberto Delgado
Delta
Sep 13
LIS5:40 amLisbon Humberto Delgado
20h 55m
2 stops
DEN7:35 pmDenver Intl
Sep 20
DEN5:45 amDenver Intl
19h 15m
2 stops
LIS8:00 amLisbon Humberto Delgado

Air France flights from Lisbon to Denver

Our best Air France deals on Lisbon to Denver flight tickets
Air France
Sep 11
LIS5:40 amLisbon Humberto Delgado
16h 50m
1 stop
DEN3:30 pmDenver Intl
Sep 14
DEN5:40 pmDenver Intl
17h 10m
1 stop
LIS5:50 pmLisbon Humberto Delgado
Air France
Aug 26
LIS5:40 amLisbon Humberto Delgado
16h 50m
1 stop
DEN3:30 pmDenver Intl
Sep 3
DEN12:11 pmDenver Intl
12h 49m
1 stop
LIS8:00 amLisbon Humberto Delgado
Air France
Aug 25
LIS3:55 pmLisbon Humberto Delgado
30h 35m
1 stop
DEN3:30 pmDenver Intl
Sep 5
DEN12:11 pmDenver Intl
12h 49m
1 stop
LIS8:00 amLisbon Humberto Delgado

momondo Fare Finder

 
Customize your flight search to find flights from Lisbon to Denver 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 July 30, 2025.
Use the filters below to find and compare flights from Lisbon to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 9/12

9:25 am-5:59 pm

1 stop15h 34m

Denver Intl

Fri 9/19

7:55 pm-5:00 pm

1 stop14h 05m

$620

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 9/11

9:25 am-6:55 pm

2 stops16h 30m

Denver Intl

Thu 9/18

4:40 pm-9:05 pm

2 stops21h 25m

$676

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 9/13

8:55 am-7:54 pm

2 stops17h 59m

Denver Intl

Sat 9/20

11:20 am-10:45 am

1 stop16h 25m

$774

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 8/27

5:00 am-3:28 pm

2 stops17h 28m

Denver Intl

Fri 9/5

12:11 pm-2:50 pm

2 stops19h 39m

$776

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 8/26

5:40 am-3:30 pm

1 stop16h 50m

Denver Intl

Thu 9/4

12:11 pm-2:50 pm

2 stops19h 39m

$777

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 9/11

5:40 am-3:30 pm

1 stop16h 50m

Denver Intl

Sun 9/14

5:40 pm-5:50 pm

1 stop17h 10m

$782

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 8/26

5:40 am-3:30 pm

1 stop16h 50m

Denver Intl

Wed 9/3

12:11 pm-8:00 am

1 stop12h 49m

$790

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 8/29

5:00 am-3:28 pm

2 stops17h 28m

Denver Intl

Thu 11/13

11:40 am-8:00 am

1 stop13h 20m

$795

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 9/5

11:05 am-9:50 pm

1 stop17h 45m

Denver Intl

Fri 9/19

6:35 pm-11:10 pm

1 stop21h 35m

$835

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Mon 8/25

11:05 am-9:55 pm

1 stop17h 50m

Denver Intl

Sun 9/7

2:17 pm-11:05 pm

2 stops25h 48m

$837

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 Denver from

How to get the cheapest flight ticket from Lisbon to Denver

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 Denver?

The cheapest month to fly to Denver from Lisbon is in October. Flight prices, which tend to average around $779, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in October, then you should wait until February to fly from Lisbon, when ticket prices are also cheap, with an average price of $804.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $772. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Friday, with ticket prices averaging around $1,229.

Can stopping save me money on Lisbon to Denver flights?

You could potentially save up to 9% on your flight if you consider stops on a Lisbon to Denver flight.

How have Lisbon to Denver flight prices changed over time?

As of July 2025, prices for Lisbon to Denver flights are approximately 31% cheaper when compared to flights at the same time last year.

When to book flights from Lisbon to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Lisbon to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Lisbon to Denver (LIS to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lisbon to Denver

Best Price Found

$400

Fastest flight time

15h 34m

Direct flights

None

Airports in Denver

1 airport
The best one-way flight to Denver from Lisbon in the past 72 hours is $400. The best round-trip flight deal from Lisbon to Denver found on momondo in the last 72 hours is $620.
The fastest flight from Lisbon to Denver takes 15h 34m
There are no direct flights from Lisbon to Denver. Popular non-direct route for this connection is Lisbon Humberto Delgado Airport - Denver Intl Airport.
There is 1 airport near Denver: Denver Intl (DEN)

  • How far is Lisbon Humberto Delgado to Denver Intl by plane?

    A flight from Lisbon Humberto Delgado to Denver Intl will travel around 4847.0 mi. Typically, this will take 15h 34m by plane in normal conditions.

  • When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to Denver Intl Airport?

    Prices for flights from Lisbon Humberto Delgado Airport to Denver Intl Airport were last updated today.

  • How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to Denver Intl Airport?

  • How old do you have to be to fly from Lisbon Humberto Delgado Airport to Denver Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lisbon Humberto Delgado Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Lisbon to Denver?


Best airlines flying from Lisbon to Denver

Compare and see reviews for airlines that fly from Lisbon to Denver with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $749Free CancellationRating
6.6
7,217 reviews
Search British Airways flights
DeltaPriceFrom $758Free CancellationRating
8.0
7,980 reviews
Search Delta flights
United AirlinesPriceFrom $766Free CancellationRating
7.4
8,896 reviews
Search United Airlines flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Estes Park
Breckenridge
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Longmont
Boulder
Lakewood
Manitou Springs
Greeley
Westminster
Thornton
Winter Park
Copper Mountain
Grand Lake
Silverthorne
Golden
Frisco

Why use momondo?

Why should I use momondo to find a flight deal from Lisbon to Denver?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Lisbon to Denver. momondo saves you time and could save you money on your trip.

Can I find flights from Lisbon to Denver with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Lisbon to Denver flights to just show those with flexible booking policies.

How can momondo help me find flights from Lisbon to Denver?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Lisbon to Denver.

I’m not ready to book a flight from Lisbon to Denver right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Denver, momondo offers a useful price alert feature which will track prices for flights to Denver from Lisbon and alert you when they change.


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1 adult
Mon 8/4
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