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Cheap flights from Lisbon to Denver from $318

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 1/28. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:20 am - 12:15 amLIS-DEN
22h 55m2 stops
Multiple Airlines Logo
9:59 am - 8:10 amDEN-LIS
15h 11m1 stop
$828Multiple Airlines
Find Deal
Thu, Dec 25 - Wed, Jan 7
Multiple Airlines Logo
8:20 am - 12:15 amLIS-DEN
22h 55m2 stops
Multiple Airlines Logo
9:59 am - 8:10 amDEN-LIS
15h 11m1 stop
$833Multiple Airlines
Find Deal
Thu, Dec 25 - Wed, Jan 7
United Airlines Logo
5:05 am - 1:35 pmLIS-DEN
15h 30m1 stop
United Airlines Logo
5:40 pm - 9:20 amDEN-LIS
32h 40m1 stop
$852United Airlines
Find Deal
Wed, Apr 29 - Sun, May 3
United Airlines Logo
5:05 am - 1:35 pmLIS-DEN
15h 30m1 stop
United Airlines Logo
5:40 pm - 9:20 amDEN-LIS
32h 40m1 stop
$853United Airlines
Find Deal
Wed, Apr 29 - Sun, May 3
Lufthansa Logo
11:55 am - 7:28 pmLIS-DEN
14h 33m1 stop
Lufthansa Logo
4:20 pm - 1:20 pmDEN-LIS
14h 00m1 stop
$867Lufthansa
Find Deal
Thu, Dec 25 - Wed, Jan 7
American Airlines Logo
11:05 am - 7:41 pmLIS-DEN
15h 36m2 stops
American Airlines Logo
6:40 pm - 11:00 pmDEN-LIS
21h 20m1 stop
$873American Airlines
Find Deal
Wed, Apr 29 - Sun, May 3
American Airlines Logo
11:05 am - 7:41 pmLIS-DEN
15h 36m2 stops
American Airlines Logo
6:40 pm - 11:00 pmDEN-LIS
21h 20m1 stop
$874American Airlines
Find Deal
Wed, Apr 29 - Sun, May 3
Lufthansa Logo
11:55 am - 7:28 pmLIS-DEN
14h 33m1 stop
Lufthansa Logo
4:20 pm - 1:20 pmDEN-LIS
14h 00m1 stop
$877Lufthansa
Find Deal
Thu, Dec 25 - Wed, Jan 7
United Airlines Logo
10:55 am - 7:55 pmLIS-DEN
16h 00m1 stop
United Airlines Logo
7:46 am - 8:10 amDEN-LIS
17h 24m1 stop
$881United Airlines
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Thu, Dec 25 - Wed, Jan 7
British Airways Logo
3:55 pm - 3:57 pmLIS-DEN
31h 02m2 stops
British Airways Logo
3:00 pm - 2:50 pmDEN-LIS
16h 50m2 stops
$885British Airways
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Thu, Dec 25 - Wed, Jan 7

United Airlines flights from Lisbon to Denver

Our best United Airlines deals on Lisbon to Denver flight tickets
United Airlines
Apr 29
LIS5:05 amLisbon Humberto Delgado
15h 30m
1 stop
DEN1:35 pmDenver Intl
May 3
DEN5:40 pmDenver Intl
32h 40m
1 stop
LIS9:20 amLisbon Humberto Delgado
$852
Find similar
United Airlines
Apr 29
LIS5:05 amLisbon Humberto Delgado
15h 30m
1 stop
DEN1:35 pmDenver Intl
May 3
DEN5:40 pmDenver Intl
32h 40m
1 stop
LIS9:20 amLisbon Humberto Delgado
$853
Find similar
United Airlines
Dec 25
LIS10:55 amLisbon Humberto Delgado
16h 00m
1 stop
DEN7:55 pmDenver Intl
Jan 7
DEN7:46 amDenver Intl
17h 24m
1 stop
LIS8:10 amLisbon Humberto Delgado
$881
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American Airlines flights from Lisbon to Denver

Our best American Airlines deals on Lisbon to Denver flight tickets
American Airlines
Apr 29
LIS11:05 amLisbon Humberto Delgado
15h 36m
2 stops
DEN7:41 pmDenver Intl
May 3
DEN6:40 pmDenver Intl
21h 20m
1 stop
LIS11:00 pmLisbon Humberto Delgado
$873
Find similar
American Airlines
Apr 29
LIS11:05 amLisbon Humberto Delgado
15h 36m
2 stops
DEN7:41 pmDenver Intl
May 3
DEN6:40 pmDenver Intl
21h 20m
1 stop
LIS11:00 pmLisbon Humberto Delgado
$874
Find similar
American Airlines
Dec 18
LIS8:55 amLisbon Humberto Delgado
16h 40m
2 stops
DEN6:35 pmDenver Intl
Dec 25
DEN8:07 amDenver Intl
16h 33m
2 stops
LIS7:40 amLisbon Humberto Delgado
$1,079
Find similar

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 November 4, 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

Thu 12/25

8:20 am-12:15 am

2 stops22h 55m

Denver Intl

Wed 1/7

9:59 am-8:10 am

1 stop15h 11m

$828

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 12/25

8:20 am-12:15 am

2 stops22h 55m

Denver Intl

Wed 1/7

9:59 am-8:10 am

1 stop15h 11m

$833

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 4/29

5:05 am-1:35 pm

1 stop15h 30m

Denver Intl

Sun 5/3

5:40 pm-9:20 am

1 stop32h 40m

$852

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 4/29

5:05 am-1:35 pm

1 stop15h 30m

Denver Intl

Sun 5/3

5:40 pm-9:20 am

1 stop32h 40m

$853

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 12/25

11:55 am-7:28 pm

1 stop14h 33m

Denver Intl

Wed 1/7

4:20 pm-1:20 pm

1 stop14h 00m

$867

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 4/29

11:05 am-7:41 pm

2 stops15h 36m

Denver Intl

Sun 5/3

6:40 pm-11:00 pm

1 stop21h 20m

$873

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 4/29

11:05 am-7:41 pm

2 stops15h 36m

Denver Intl

Sun 5/3

6:40 pm-11:00 pm

1 stop21h 20m

$874

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 12/25

11:55 am-7:28 pm

1 stop14h 33m

Denver Intl

Wed 1/7

4:20 pm-1:20 pm

1 stop14h 00m

$877

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 12/25

10:55 am-7:55 pm

1 stop16h 00m

Denver Intl

Wed 1/7

7:46 am-8:10 am

1 stop17h 24m

$881

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 12/25

3:55 pm-3:57 pm

2 stops31h 02m

Denver Intl

Wed 1/7

3:00 pm-2:50 pm

2 stops16h 50m

$885

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

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Lisbon is in February. Flight prices, which tend to average around $821, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in February, then you should wait until December to fly from Lisbon, when ticket prices are also cheap, with an average price of $878.

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 November 2025, prices for Lisbon to Denver flights are approximately 18% 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

Direct flights

None
There are no direct flights from Lisbon to Denver. There are no popular flight routes from Lisbon to Denver.
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  • 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 14h 33m 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
6.7
7,494 reviews
Search British Airways flights
DeltaPriceFrom $758Free CancellationRating
7.9
8,002 reviews
Search Delta flights
United AirlinesPriceFrom $809Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights

Traveling to a place near Denver?

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

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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