What airlines fly to Colorado?

United Airlines, British Airways and Delta are the top three most popular airlines that fly to Colorado from Portugal according to our data. United Airlines is the first choice among our users, with 39% 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.

How long is the flight from Portugal to Colorado?

Flight times from Portugal to Colorado vary, but if you’re flying out of Funchal and flying into Denver (one of the most popular routes), then the duration is 18h 57m on average. Another popular route from Portugal to Colorado is flying from Lisbon to Denver, which will take roughly 25h 52m. Keep in mind that layovers or delays could extend your travel time.

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 August 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.

$357 Cheap Flights from Portugal to Colorado in 2025

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Find the cheapest flights from Portugal to Colorado

Round-trip

One-way

Last minute

Recent round-trip flight deals from Portugal to Colorado

11:05 am - 9:15 amLIS-DEN

29h 10m2 stops

6:55 pm - 11:10 pmDEN-LIS

45h 15m2 stops

$673

Find Deal

Fri, Sep 5 - Fri, Sep 19

5:35 pm - 9:15 amLIS-DEN

22h 40m1 stop

6:55 pm - 5:50 amDEN-LIS

27h 55m1 stop

$733

Find Deal

Fri, Sep 5 - Fri, Sep 19

10:15 pm - 5:59 pmLIS-DEN

26h 44m1 stop

7:55 pm - 9:35 pmDEN-LIS

18h 40m1 stop

$763Aer Lingus

Find Deal

Fri, Sep 5 - Fri, Sep 19

5:05 am - 1:35 pmLIS-DEN

15h 30m1 stop

6:00 am - 8:20 amDEN-LIS

19h 20m1 stop

$829United Airlines

Find Deal

Fri, Sep 5 - Sat, Sep 20

5:05 am - 1:35 pmLIS-DEN

15h 30m1 stop

11:54 pm - 8:20 amDEN-LIS

25h 26m1 stop

$836United Airlines

Find Deal

Fri, Sep 5 - Fri, Sep 19

10:15 pm - 6:36 pmLIS-DEN

27h 21m2 stops

2:17 pm - 9:35 pmDEN-LIS

24h 18m2 stops

$845Aer Lingus

Find Deal

Fri, Sep 5 - Fri, Sep 12

11:05 am - 9:50 pmLIS-DEN

17h 45m1 stop

6:35 pm - 11:10 pmDEN-LIS

21h 35m1 stop

$850British Airways

Find Deal

Fri, Sep 5 - Fri, Sep 19

11:05 am - 9:50 pmLIS-DEN

17h 45m1 stop

6:35 pm - 11:10 pmDEN-LIS

21h 35m1 stop

$852British Airways

Find Deal

Fri, Sep 5 - Fri, Sep 19

5:00 am - 7:54 pmLIS-DEN

21h 54m2 stops

3:55 pm - 2:50 pmDEN-LIS

15h 55m2 stops

$874Delta

Find Deal

Sat, Sep 20 - Sat, Oct 4

5:00 am - 6:28 pmLIS-DEN

20h 28m2 stops

11:40 am - 11:15 amDEN-LIS

16h 35m2 stops

$878Delta

Find Deal

Thu, Oct 2 - Wed, Oct 15

British Airways flights from Portugal to Colorado

Our best British Airways deals on Portugal to Colorado flight tickets

British Airways

Sep 5

LIS11:05 amLisbon Humberto Delgado

17h 45m

1 stop

DEN9:50 pmDenver Intl

Sep 19

DEN6:35 pmDenver Intl

21h 35m

1 stop

LIS11:10 pmLisbon Humberto Delgado

$850

Find similar

British Airways

Sep 5

LIS11:05 amLisbon Humberto Delgado

17h 45m

1 stop

DEN9:50 pmDenver Intl

Sep 19

DEN6:35 pmDenver Intl

21h 35m

1 stop

LIS11:10 pmLisbon Humberto Delgado

$852

Find similar

British Airways

Sep 5

LIS6:35 amLisbon Humberto Delgado

18h 58m

2 stops

DEN6:33 pmDenver Intl

Sep 19

DEN6:35 pmDenver Intl

21h 35m

1 stop

LIS11:10 pmLisbon Humberto Delgado

$866

Find similar

Air Canada flights from Portugal to Colorado

Our best Air Canada deals on Portugal to Colorado flight tickets

Air Canada

Aug 27

LIS12:50 pmLisbon Humberto Delgado

30h 52m

2 stops

DEN12:42 pmDenver Intl

Sep 6

DEN8:28 pmDenver Intl

29h 52m

2 stops

LIS9:20 amLisbon Humberto Delgado

$889

Find similar

Air Canada

Aug 27

LIS12:50 pmLisbon Humberto Delgado

30h 52m

2 stops

DEN12:42 pmDenver Intl

Sep 5

DEN7:45 amDenver Intl

17h 35m

2 stops

LIS8:20 amLisbon Humberto Delgado

$891

Find similar

Air Canada

Sep 5

LIS5:05 amLisbon Humberto Delgado

18h 28m

2 stops

DEN4:33 pmDenver Intl

Sep 20

DEN11:25 amDenver Intl

16h 40m

1 stop

LIS11:05 amLisbon Humberto Delgado

$899

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 9/5

11:05 am-9:15 am

2 stops29h 10m

Denver Intl

Fri 9/19

6:55 pm-11:10 pm

2 stops45h 15m

$673

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 9/5

5:35 pm-9:15 am

1 stop22h 40m

Denver Intl

Fri 9/19

6:55 pm-5:50 am

1 stop27h 55m

$733

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 9/5

10:15 pm-5:59 pm

1 stop26h 44m

Denver Intl

Fri 9/19

7:55 pm-9:35 pm

1 stop18h 40m

$763

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 9/5

5:05 am-1:35 pm

1 stop15h 30m

Denver Intl

Sat 9/20

6:00 am-8:20 am

1 stop19h 20m

$829

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 9/5

5:05 am-1:35 pm

1 stop15h 30m

Denver Intl

Fri 9/19

11:54 pm-8:20 am

1 stop25h 26m

$836

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Fri 9/5

10:15 pm-6:36 pm

2 stops27h 21m

Denver Intl

Fri 9/12

2:17 pm-9:35 pm

2 stops24h 18m

$845

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

$850

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

$852

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 9/20

5:00 am-7:54 pm

2 stops21h 54m

Denver Intl

Sat 10/4

3:55 pm-2:50 pm

2 stops15h 55m

$874

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Thu 10/2

5:00 am-6:28 pm

2 stops20h 28m

Denver Intl

Wed 10/15

11:40 am-11:15 am

2 stops16h 35m

$878

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 October is, on average, the cheapest month to fly to Colorado from Portugal, with most prices found around $789. The month of February is another great option to travel to Colorado, with average flight prices from Portugal averaging around $804.

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.

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from Portugal when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $945 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Portugal for as low as $802 on momondo.

Can stopping save me money on Portugal to Colorado flights?

You could potentially save up to 11% 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 August 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 7,289 reviews	Search British Airways flights
Delta	PriceFrom $758	Free Cancellation	Rating 7.9 7,982 reviews	Search Delta flights
United Airlines	PriceFrom $766	Free Cancellation	Rating 7.4 8,928 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.