How long is the flight from Portugal to Colorado?

Flight times from Portugal to Colorado vary, but if you’re flying out of Lisbon and flying into Denver (one of the most popular routes), then the duration is 15h 25m on average. Another popular route from Portugal to Colorado is flying from Funchal to Denver, which will take roughly 31h 10m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Portugal to Colorado?

British Airways, Aer Lingus, and Finnair are the most popular carriers operating from Portugal to Colorado

When did momondo last update prices for flights from Portugal to Colorado?

Prices for flights from Portugal to Colorado were last updated today.

How many operators does momondo search for flights from Portugal to Colorado?

As of November 2026, there is 1 operator available to choose from for flights from Portugal to Colorado.

How old do you have to be to fly from Portugal to Colorado?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Colorado.

What documentation or ID do you need to fly to Colorado?

The required travel and health documents for your Colorado 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 Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$453 Cheap Flights from Portugal to Colorado in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portugal to Colorado

Round-trip

One-way

Recent round-trip flight deals from Portugal to Colorado

Enter your travel dates to find the best prices.

2:00 pm - 6:00 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

35h 00m1 stop Reykjavik Keflavik Intl

4:40 pm - 12:50 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

14h 10m1 stop Reykjavik Keflavik Intl

$837Icelandair

Sun, Mar 7 - Wed, Mar 17

10:50 am - 6:29 amLIS Lisbon Humberto Delgado-DEN Denver Intl

26h 39m2 stops Washington, D.C. Dulles Intl Atlanta Hartsfield-Jackson

3:40 pm - 3:40 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

17h 00m2 stops Reykjavik Keflavik Intl Dublin

$845Multiple Airlines

Tue, Dec 15 - Mon, Jan 11

5:55 am - 6:00 pmOPO Porto-DEN Denver Intl

19h 05m2 stops Paris Charles de Gaulle Reykjavik Keflavik Intl

3:40 pm - 9:55 pmDEN Denver Intl-OPO Porto

23h 15m2 stops Reykjavik Keflavik Intl Paris Charles de Gaulle

$850Multiple Airlines

Sun, Dec 6 - Sun, Dec 13

11:40 am - 9:49 amLIS Lisbon Humberto Delgado-DEN Denver Intl

29h 09m2 stops Chicago O'Hare Intl Orlando

3:40 pm - 3:40 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

17h 00m2 stops Reykjavik Keflavik Intl Dublin

$856Multiple Airlines

Wed, Dec 16 - Mon, Jan 11

10:50 am - 6:29 amLIS Lisbon Humberto Delgado-DEN Denver Intl

26h 39m2 stops Washington, D.C. Dulles Intl Atlanta Hartsfield-Jackson

3:40 pm - 12:50 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

14h 10m1 stop Reykjavik Keflavik Intl

$872Multiple Airlines

Tue, Dec 15 - Wed, Jan 13

5:55 am - 6:00 pmOPO Porto-DEN Denver Intl

19h 05m2 stops Paris Charles de Gaulle Reykjavik Keflavik Intl

3:40 pm - 9:15 pmDEN Denver Intl-OPO Porto

22h 35m3 stops Reykjavik Keflavik Intl Paris Charles de Gaulle Barcelona-El Prat

$874Multiple Airlines

Sun, Dec 6 - Sun, Dec 13

2:00 pm - 6:00 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

35h 00m1 stop Reykjavik Keflavik Intl

4:40 pm - 12:50 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

14h 10m1 stop Reykjavik Keflavik Intl

$888Icelandair

Thu, Mar 4 - Wed, Mar 17

11:25 am - 6:29 amLIS Lisbon Humberto Delgado-DEN Denver Intl

26h 04m2 stops Washington, D.C. Dulles Intl Atlanta Hartsfield-Jackson

3:40 pm - 8:20 pmDEN Denver Intl-LIS Lisbon Humberto Delgado

21h 40m2 stops Reykjavik Keflavik Intl Edinburgh Turnhouse

$891Multiple Airlines

Mon, Dec 7 - Mon, Dec 14

12:20 pm - 7:41 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

14h 21m1 stop Washington, D.C. Dulles Intl

2:10 pm - 10:20 amDEN Denver Intl-LIS Lisbon Humberto Delgado

13h 10m1 stop Washington, D.C. Dulles Intl

$947United Airlines

Fri, Dec 18 - Thu, Dec 24

10:15 am - 9:36 pmLIS Lisbon Humberto Delgado-DEN Denver Intl

18h 21m1 stop Newark

12:50 pm - 10:20 amDEN Denver Intl-LIS Lisbon Humberto Delgado

14h 30m1 stop Washington, D.C. Dulles Intl

$947United Airlines

Thu, Dec 17 - Mon, Dec 28

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TAP AIR PORTUGAL flights from Portugal to Colorado

Our best TAP AIR PORTUGAL deals on Portugal to Colorado flight tickets

TAP AIR PORTUGAL

Dec 6

OPO5:45 pmPorto

35h 42m

1 stop

DEN10:27 pmDenver Intl

Dec 13

DEN2:38 pmDenver Intl

12h 57m

1 stop

OPO10:35 amPorto

$948

TAP AIR PORTUGAL

Dec 6

OPO5:00 amPorto

24h 27m

2 stops

DEN10:27 pmDenver Intl

Dec 13

DEN2:38 pmDenver Intl

12h 57m

1 stop

OPO10:35 amPorto

$969

TAP AIR PORTUGAL

Mar 8

LIS12:05 pmLisbon Humberto Delgado

17h 54m

1 stop

DEN10:59 pmDenver Intl

Mar 15

DEN2:30 pmDenver Intl

13h 30m

1 stop

LIS10:00 amLisbon Humberto Delgado

$1,011

Air Canada flights from Portugal to Colorado

Our best Air Canada deals on Portugal to Colorado flight tickets

Air Canada

Dec 22

LIS11:20 amLisbon Humberto Delgado

30h 15m

1 stop

DEN10:35 amDenver Intl

Dec 29

DEN7:00 pmDenver Intl

28h 55m

2 stops

LIS6:55 amLisbon Humberto Delgado

$1,012

Air Canada

Mar 8

FAO6:05 amFaro

21h 21m

2 stops

DEN8:26 pmDenver Intl

Mar 17

DEN11:25 amDenver Intl

16h 55m

2 stops

FAO10:20 amFaro

$1,322

Air Canada

Mar 4

FAO6:05 amFaro

21h 21m

2 stops

DEN8:26 pmDenver Intl

Mar 15

DEN11:25 amDenver Intl

22h 15m

2 stops

FAO3:40 pmFaro

$1,345

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LisbonDenver

LIS Lisbon Humberto Delgado - DEN Denver Intl

LISDEN

Lisbon Humberto Delgado

Sun 3/7

2:00 pm-6:00 pm

1 stop35h 00m

Denver Intl

Wed 3/17

4:40 pm-12:50 pm

1 stop14h 10m

$837

LisbonDenver

LIS Lisbon Humberto Delgado - DEN Denver Intl

LISDEN

Lisbon Humberto Delgado

Tue 12/15

10:50 am-6:29 am

2 stops26h 39m

Denver Intl

Mon 1/11

3:40 pm-3:40 pm

2 stops17h 00m

$845

PortoDenver

OPO Porto - DEN Denver Intl

OPODEN

Porto

Sun 12/6

5:55 am-6:00 pm

2 stops19h 05m

Denver Intl

Sun 12/13

3:40 pm-9:55 pm

2 stops23h 15m

$850

LisbonDenver

LIS Lisbon Humberto Delgado - DEN Denver Intl

LISDEN

Lisbon Humberto Delgado

Wed 12/16

11:40 am-9:49 am

2 stops29h 09m

Denver Intl

Mon 1/11

3:40 pm-3:40 pm

2 stops17h 00m

$856

LisbonDenver

LIS Lisbon Humberto Delgado - DEN Denver Intl

LISDEN

Lisbon Humberto Delgado

Tue 12/15

10:50 am-6:29 am

2 stops26h 39m

Denver Intl

Wed 1/13

3:40 pm-12:50 pm

1 stop14h 10m

$872

PortoDenver

OPO Porto - DEN Denver Intl

OPODEN

Porto

Sun 12/6

5:55 am-6:00 pm

2 stops19h 05m

Denver Intl

Sun 12/13

3:40 pm-9:15 pm

3 stops22h 35m

$874

LisbonDenver

LIS Lisbon Humberto Delgado - DEN Denver Intl

LISDEN

Lisbon Humberto Delgado

Thu 3/4

2:00 pm-6:00 pm

1 stop35h 00m

Denver Intl

Wed 3/17

4:40 pm-12:50 pm

1 stop14h 10m

$888

LisbonDenver

LIS Lisbon Humberto Delgado - DEN Denver Intl

LISDEN

Lisbon Humberto Delgado

Mon 12/7

11:25 am-6:29 am

2 stops26h 04m

Denver Intl

Mon 12/14

3:40 pm-8:20 pm

2 stops21h 40m

$891

Quickest round-trip

LisbonDenver

LIS Lisbon Humberto Delgado - DEN Denver Intl

LISDEN

Lisbon Humberto Delgado

Fri 12/18

12:20 pm-7:41 pm

1 stop14h 21m

Denver Intl

Thu 12/24

2:10 pm-10:20 am

1 stop13h 10m

$947

LisbonDenver

LIS Lisbon Humberto Delgado - DEN Denver Intl

LISDEN

Lisbon Humberto Delgado

Thu 12/17

10:15 am-9:36 pm

1 stop18h 21m

Denver Intl

Mon 12/28

12:50 pm-10:20 am

1 stop14h 30m

$947

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portugal to Colorado

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

Prices

Airlines

Other information

What is the cheapest month to fly to Colorado?

The month of February is, on average, the cheapest month to fly to Colorado from Portugal, with most prices found around $928. The month of March is another great option to travel to Colorado, with average flight prices from Portugal averaging around $980.

Can stopping save me money on Portugal to Colorado flights?

You could potentially save up to 19% on your flight if you consider stops on a Portugal to Colorado flight.

Cheap Portugal to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to Colorado

Best Price Found	$453
Fastest flight time	15h 25m
Direct flights	None

The best one-way flight to Colorado from Portugal in the past 72 hours is $453. The best round-trip flight deal from Portugal to Colorado found on momondo in the last 72 hours is $837.

The fastest flight from Portugal to Colorado takes 15h 25m

There are no direct flights from Portugal to Colorado. There are no popular flight routes from Portugal to Colorado.

Search flight deals

Frequently asked questions about flying from Portugal to Colorado

When did momondo last update prices for flights from Portugal to Colorado?
Prices for flights from Portugal to Colorado were last updated today.
How many operators does momondo search for flights from Portugal to Colorado?
As of November 2026, there is 1 operator available to choose from for flights from Portugal to Colorado.
How old do you have to be to fly from Portugal to Colorado?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Colorado.
What documentation or ID do you need to fly to Colorado?
The required travel and health documents for your Colorado 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 Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portugal to Colorado

Compare and see reviews for airlines that fly from Portugal to Colorado with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $933	Free Cancellation	Rating 7.3 10,474 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portugal to Colorado?

It is quick and easy to find Portugal to Colorado flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Colorado that suits you.

Can I find flights from Portugal to Colorado with flexible booking policies on momondo?

momondo does allow users to show only those flights to Colorado from Portugal which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portugal to Colorado?

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 Portugal to Colorado.

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

Price alerts on flights to Colorado from Portugal are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.