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Cheap flights from Lisbon to Denver from $419

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 10/23. 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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Find the cheapest flights from Lisbon to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
10:15 pm - 6:15 pm
LIS
-
DEN
27h 00m
1 stop
Aer Lingus Logo
8:00 pm - 9:35 pm
DEN
-
LIS
18h 35m
1 stop
$736Aer Lingus
Tue, Jun 2 - Sat, Jun 20
Aer Lingus Logo
10:15 pm - 6:15 pm
LIS
-
DEN
27h 00m
1 stop
Aer Lingus Logo
8:00 pm - 9:35 pm
DEN
-
LIS
18h 35m
1 stop
$905Aer Lingus
Fri, Jun 5 - Fri, Jun 19
Multiple Airlines Logo
10:15 pm - 7:36 pm
LIS
-
DEN
28h 21m
2 stops
Multiple Airlines Logo
8:00 pm - 9:35 pm
DEN
-
LIS
18h 35m
1 stop
$954Multiple Airlines
Tue, Jun 2 - Sat, Jun 20
Delta Logo
5:00 am - 8:15 pm
LIS
-
DEN
22h 15m
2 stops
Delta Logo
5:40 pm - 2:55 pm
DEN
-
LIS
14h 15m
1 stop
$973Delta
Thu, May 28 - Sun, May 31
Air France Logo
5:35 am - 3:40 pm
LIS
-
DEN
17h 05m
1 stop
Air France Logo
5:40 pm - 8:50 am
DEN
-
LIS
32h 10m
1 stop
$974Air France
Fri, Jun 5 - Fri, Jun 19
Delta Logo
5:00 am - 8:15 pm
LIS
-
DEN
22h 15m
2 stops
Delta Logo
3:12 pm - 5:50 pm
DEN
-
LIS
19h 38m
2 stops
$975Delta
Fri, May 29 - Tue, Jun 2
Multiple Airlines Logo
5:00 am - 5:14 pm
LIS
-
DEN
19h 14m
2 stops
Multiple Airlines Logo
5:40 pm - 8:50 am
DEN
-
LIS
32h 10m
1 stop
$977Multiple Airlines
Sat, Jun 6 - Mon, Jun 22
Multiple Airlines Logo
5:00 am - 3:36 pm
LIS
-
DEN
17h 36m
2 stops
Multiple Airlines Logo
5:40 pm - 8:50 am
DEN
-
LIS
32h 10m
1 stop
$979Multiple Airlines
Fri, Jun 5 - Fri, Jun 19
Multiple Airlines Logo
5:35 am - 3:40 pm
LIS
-
DEN
17h 05m
1 stop
Multiple Airlines Logo
6:35 am - 8:00 am
DEN
-
LIS
18h 25m
1 stop
$984Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
KLM Logo
9:20 am - 8:15 pm
LIS
-
DEN
17h 55m
2 stops
KLM Logo
6:35 am - 8:00 am
DEN
-
LIS
18h 25m
1 stop
$987KLM
Tue, Jun 2 - Mon, Jun 8

Aer Lingus flights from Lisbon to Denver

Our best Aer Lingus deals on Lisbon to Denver flight tickets
Aer Lingus
Jun 2
LIS10:15 pmLisbon Humberto Delgado
27h 00m
1 stop
DEN6:15 pmDenver Intl
Jun 20
DEN8:00 pmDenver Intl
18h 35m
1 stop
LIS9:35 pmLisbon Humberto Delgado
$736
Aer Lingus
Jun 5
LIS10:15 pmLisbon Humberto Delgado
27h 00m
1 stop
DEN6:15 pmDenver Intl
Jun 19
DEN8:00 pmDenver Intl
18h 35m
1 stop
LIS9:35 pmLisbon Humberto Delgado
$905

United Airlines flights from Lisbon to Denver

Our best United Airlines deals on Lisbon to Denver flight tickets
United Airlines
Jun 3
LIS5:05 amLisbon Humberto Delgado
17h 35m
1 stop
DEN3:40 pmDenver Intl
Jun 8
DEN6:00 amDenver Intl
19h 20m
1 stop
LIS8:20 amLisbon Humberto Delgado
$997
United Airlines
Jun 1
LIS5:05 amLisbon Humberto Delgado
23h 22m
2 stops
DEN9:27 pmDenver Intl
Jun 9
DEN1:41 pmDenver Intl
11h 39m
1 stop
LIS8:20 amLisbon Humberto Delgado
$1,002
United Airlines
Jun 5
LIS6:15 amLisbon Humberto Delgado
19h 35m
1 stop
DEN6:50 pmDenver Intl
Jun 19
DEN11:59 pmDenver Intl
25h 21m
2 stops
LIS8:20 amLisbon Humberto Delgado
$1,008

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 May 17, 2026.
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

Cheapest round-trip

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 6/2

10:15 pm-6:15 pm

1 stop27h 00m

Denver Intl

Sat 6/20

8:00 pm-9:35 pm

1 stop18h 35m

$736

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 6/5

10:15 pm-6:15 pm

1 stop27h 00m

Denver Intl

Fri 6/19

8:00 pm-9:35 pm

1 stop18h 35m

$905

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 6/2

10:15 pm-7:36 pm

2 stops28h 21m

Denver Intl

Sat 6/20

8:00 pm-9:35 pm

1 stop18h 35m

$954

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 5/28

5:00 am-8:15 pm

2 stops22h 15m

Denver Intl

Sun 5/31

5:40 pm-2:55 pm

1 stop14h 15m

$973

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 6/5

5:35 am-3:40 pm

1 stop17h 05m

Denver Intl

Fri 6/19

5:40 pm-8:50 am

1 stop32h 10m

$974

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 5/29

5:00 am-8:15 pm

2 stops22h 15m

Denver Intl

Tue 6/2

3:12 pm-5:50 pm

2 stops19h 38m

$975

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 6/6

5:00 am-5:14 pm

2 stops19h 14m

Denver Intl

Mon 6/22

5:40 pm-8:50 am

1 stop32h 10m

$977

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 6/5

5:00 am-3:36 pm

2 stops17h 36m

Denver Intl

Fri 6/19

5:40 pm-8:50 am

1 stop32h 10m

$979
Quickest round-trip

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Mon 6/1

5:35 am-3:40 pm

1 stop17h 05m

Denver Intl

Mon 6/8

6:35 am-8:00 am

1 stop18h 25m

$984

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 6/2

9:20 am-8:15 pm

2 stops17h 55m

Denver Intl

Mon 6/8

6:35 am-8:00 am

1 stop18h 25m

$987

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 November. Flight prices, which tend to average around $875, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in November, then you should wait until August to fly from Lisbon, when ticket prices are also cheap, with an average price of $901.

Can stopping save me money on Lisbon to Denver flights?

You could potentially save up to 11% 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 May 2026, prices for Lisbon to Denver flights are approximately 1% more expensive 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

Fastest flight time

15h 39m

Direct flights

None
The fastest flight from Lisbon to Denver takes 15h 39m
There are no direct flights from Lisbon to Denver. There are no popular flight routes from Lisbon to Denver.
Search flight deals

Frequently asked questions about flying from Lisbon to Denver

  • 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 39m 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 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.

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
Manitou Springs
Boulder
Longmont
Greeley
Keystone
Lakewood
Westminster
Cripple Creek
Thornton
Frisco
Centennial
Englewood
Winter Park
Grand Lake
Copper Mountain

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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