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

Aer Lingus, TAP AIR PORTUGAL, and Turkish Airlines are the most popular carriers operating from Portugal to Colorado

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 17h 39m on average. Another popular route from Portugal to Colorado is flying from Funchal to Denver, which will take roughly 20h 11m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Colorado?

British Airways, United Airlines and Delta are the top three most popular airlines that fly to Colorado from Portugal according to our data. British Airways is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 3 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

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 October 2025, there are 3 operators 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.

$415 Cheap Flights from Portugal to Colorado in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Portugal to Colorado

Round-trip

One-way

Last minute

Recent round-trip flight deals from Portugal to Colorado

Enter your travel dates to find the best prices.

7:00 am - 6:05 pmLIS-DEN

18h 05m2 stops

3:40 pm - 8:25 pmDEN-LIS

21h 45m3 stops

$797Multiple Airlines

Find Deal

Tue, Nov 25 - Tue, Dec 2

9:50 am - 8:33 amLIS-DEN

29h 43m1 stop

6:50 am - 9:00 amDEN-LIS

43h 10m2 stops

$804Multiple Airlines

Find Deal

Thu, Nov 13 - Fri, Nov 28

5:00 am - 5:44 pmLIS-DEN

19h 44m2 stops

11:15 am - 9:20 amDEN-LIS

15h 05m1 stop

$842Air Canada

Find Deal

Fri, Nov 21 - Thu, Dec 4

7:05 am - 3:30 pmLIS-DEN

15h 25m1 stop

5:25 pm - 6:00 pmDEN-LIS

17h 35m1 stop

$850British Airways

Find Deal

Fri, Nov 21 - Thu, Dec 4

5:00 am - 5:44 pmLIS-DEN

19h 44m2 stops

1:25 pm - 1:20 pmDEN-LIS

16h 55m2 stops

$853Air Canada

Find Deal

Fri, Nov 21 - Thu, Dec 4

5:00 am - 6:47 pmLIS-DEN

20h 47m2 stops

12:20 pm - 3:10 pmDEN-LIS

19h 50m2 stops

$872Delta

Find Deal

Thu, Nov 13 - Fri, Nov 28

6:35 pm - 3:30 pmLIS-DEN

27h 55m1 stop

12:30 pm - 12:05 pmDEN-LIS

16h 35m2 stops

$884British Airways

Find Deal

Thu, Nov 20 - Fri, Dec 5

5:00 am - 4:00 pmLIS-DEN

18h 00m1 stop

11:15 am - 10:15 amDEN-LIS

16h 00m1 stop

$885United Airlines

Find Deal

Thu, Nov 20 - Fri, Dec 5

11:55 am - 12:15 amLIS-DEN

18h 20m1 stop

1:50 pm - 10:15 amDEN-LIS

13h 25m1 stop

$923United Airlines

Find Deal

Wed, Oct 29 - Wed, Dec 3

10:00 am - 6:19 pmLIS-DEN

14h 19m1 stop

12:05 pm - 3:10 pmDEN-LIS

20h 05m2 stops

$950Delta

Find Deal

Wed, Oct 29 - Wed, Dec 3

Air Canada flights from Portugal to Colorado

Our best Air Canada deals on Portugal to Colorado flight tickets

Air Canada

Nov 21

LIS5:00 amLisbon Humberto Delgado

19h 44m

2 stops

DEN5:44 pmDenver Intl

Dec 4

DEN11:15 amDenver Intl

15h 05m

1 stop

LIS9:20 amLisbon Humberto Delgado

$842

Find similar

Air Canada

Nov 21

LIS5:00 amLisbon Humberto Delgado

19h 44m

2 stops

DEN5:44 pmDenver Intl

Dec 4

DEN1:25 pmDenver Intl

16h 55m

2 stops

LIS1:20 pmLisbon Humberto Delgado

$853

Find similar

Air Canada

Nov 20

LIS5:00 amLisbon Humberto Delgado

19h 44m

2 stops

DEN5:44 pmDenver Intl

Dec 5

DEN8:45 amDenver Intl

17h 35m

2 stops

LIS9:20 amLisbon Humberto Delgado

$889

Find similar

British Airways flights from Portugal to Colorado

Our best British Airways deals on Portugal to Colorado flight tickets

British Airways

Nov 21

LIS7:05 amLisbon Humberto Delgado

15h 25m

1 stop

DEN3:30 pmDenver Intl

Dec 4

DEN5:25 pmDenver Intl

17h 35m

1 stop

LIS6:00 pmLisbon Humberto Delgado

$850

Find similar

British Airways

Nov 20

LIS6:35 pmLisbon Humberto Delgado

27h 55m

1 stop

DEN3:30 pmDenver Intl

Dec 5

DEN12:30 pmDenver Intl

16h 35m

2 stops

LIS12:05 pmLisbon Humberto Delgado

$884

Find similar

British Airways

Nov 20

LIS7:00 amLisbon Humberto Delgado

15h 30m

1 stop

DEN3:30 pmDenver Intl

Dec 5

DEN12:30 pmDenver Intl

16h 35m

2 stops

LIS12:05 pmLisbon Humberto Delgado

$887

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 11/25

7:00 am-6:05 pm

2 stops18h 05m

Denver Intl

Tue 12/2

3:40 pm-8:25 pm

3 stops21h 45m

$797

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 11/13

9:50 am-8:33 am

1 stop29h 43m

Denver Intl

Fri 11/28

6:50 am-9:00 am

2 stops43h 10m

$804

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 11/21

5:00 am-5:44 pm

2 stops19h 44m

Denver Intl

Thu 12/4

11:15 am-9:20 am

1 stop15h 05m

$842

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 11/21

7:05 am-3:30 pm

1 stop15h 25m

Denver Intl

Thu 12/4

5:25 pm-6:00 pm

1 stop17h 35m

$850

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 11/21

5:00 am-5:44 pm

2 stops19h 44m

Denver Intl

Thu 12/4

1:25 pm-1:20 pm

2 stops16h 55m

$853

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 11/13

5:00 am-6:47 pm

2 stops20h 47m

Denver Intl

Fri 11/28

12:20 pm-3:10 pm

2 stops19h 50m

$872

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 11/20

6:35 pm-3:30 pm

1 stop27h 55m

Denver Intl

Fri 12/5

12:30 pm-12:05 pm

2 stops16h 35m

$884

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 11/20

5:00 am-4:00 pm

1 stop18h 00m

Denver Intl

Fri 12/5

11:15 am-10:15 am

1 stop16h 00m

$885

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 10/29

11:55 am-12:15 am

1 stop18h 20m

Denver Intl

Wed 12/3

1:50 pm-10:15 am

1 stop13h 25m

$923

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Wed 10/29

10:00 am-6:19 pm

1 stop14h 19m

Denver Intl

Wed 12/3

12:05 pm-3:10 pm

2 stops20h 05m

$950

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 $821. The month of December is another great option to travel to Colorado, with average flight prices from Portugal averaging around $878.

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

The cheapest day to depart from Portugal to Colorado is on a Wednesday when prices can be found for as low as $772. On the other hand, Friday is the most expensive day to depart from Portugal because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,229.

Can stopping save me money on Portugal to Colorado flights?

You could potentially save up to 3% 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

Direct flights	None

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

Search flight deals

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 October 2025, there are 3 operators 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
British Airways	PriceFrom $749	Free Cancellation	Rating 6.7 7,451 reviews	Search British Airways flights
Delta	PriceFrom $758	Free Cancellation	Rating 7.9 7,972 reviews	Search Delta flights
United Airlines	PriceFrom $809	Free Cancellation	Rating 7.4 8,973 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.