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Cheap flights from Colorado to Porto from $273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Porto departing on 4/21. 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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Find the cheapest flights from Colorado to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:40 pm - 10:50 pm
DEN
-
OPO
22h 10m
1 stop
Multiple Airlines Logo
8:40 am - 8:28 pm
OPO
-
DEN
18h 48m
2 stops
$494Multiple Airlines
Mon, May 4 - Fri, May 8
Lufthansa Logo
5:40 pm - 10:50 pm
DEN
-
OPO
22h 10m
1 stop
Lufthansa Logo
6:00 am - 3:40 pm
OPO
-
DEN
16h 40m
1 stop
$504Lufthansa
Mon, May 4 - Fri, May 8
Lufthansa Logo
5:40 pm - 11:00 pm
DEN
-
OPO
22h 20m
1 stop
Lufthansa Logo
6:00 am - 3:40 pm
OPO
-
DEN
16h 40m
1 stop
$506Lufthansa
Mon, May 4 - Thu, May 7
Multiple Airlines Logo
5:40 pm - 10:50 pm
DEN
-
OPO
22h 10m
1 stop
Multiple Airlines Logo
8:40 am - 9:08 pm
OPO
-
DEN
19h 28m
2 stops
$510Multiple Airlines
Mon, May 4 - Fri, May 8
Lufthansa Logo
5:40 pm - 11:00 pm
DEN
-
OPO
22h 20m
1 stop
Lufthansa Logo
6:00 am - 12:44 am
OPO
-
DEN
25h 44m
2 stops
$516Lufthansa
Mon, May 4 - Fri, May 8
Iberia Logo
2:39 pm - 4:00 pm
DEN
-
OPO
18h 21m
2 stops
Iberia Logo
12:25 pm - 11:45 pm
OPO
-
DEN
18h 20m
2 stops
$525Iberia
Mon, May 4 - Fri, May 8
Multiple Airlines Logo
4:05 pm - 11:25 pm
DEN
-
OPO
24h 20m
1 stop
Multiple Airlines Logo
6:00 am - 11:10 pm
OPO
-
DEN
24h 10m
2 stops
$536Multiple Airlines
Mon, Apr 27 - Thu, May 7
United Airlines Logo
12:46 pm - 9:30 am
DEN
-
OPO
13h 44m
1 stop
United Airlines Logo
6:00 am - 5:00 pm
OPO
-
DEN
17h 00m
1 stop
$549United Airlines
Tue, Mar 3 - Tue, Mar 10
Lufthansa Logo
4:05 pm - 11:25 pm
DEN
-
OPO
24h 20m
1 stop
Lufthansa Logo
6:20 am - 2:20 pm
OPO
-
DEN
15h 00m
1 stop
$553Lufthansa
Mon, Apr 20 - Tue, Apr 28
United Airlines Logo
7:45 am - 9:30 am
DEN
-
OPO
18h 45m
2 stops
United Airlines Logo
6:00 am - 5:00 pm
OPO
-
DEN
17h 00m
1 stop
$554United Airlines
Tue, Mar 3 - Tue, Mar 10

British Airways flights from Colorado to Porto

Our best British Airways deals on Colorado to Porto flight tickets
British Airways
May 3
DEN6:30 pmDenver Intl
18h 50m
2 stops
OPO8:20 pmPorto
May 13
OPO12:25 pmPorto
18h 20m
2 stops
DEN11:45 pmDenver Intl
$573
British Airways
Mar 2
DEN4:43 pmDenver Intl
17h 52m
2 stops
OPO5:35 pmPorto
Mar 9
OPO8:40 pmPorto
25h 14m
2 stops
DEN3:54 pmDenver Intl
$577
British Airways
May 2
DEN6:40 pmDenver Intl
18h 55m
1 stop
OPO8:35 pmPorto
May 7
OPO7:55 pmPorto
27h 35m
1 stop
DEN4:30 pmDenver Intl
$597

Lufthansa flights from Colorado to Porto

Our best Lufthansa deals on Colorado to Porto flight tickets
Lufthansa
May 4
DEN5:40 pmDenver Intl
22h 10m
1 stop
OPO10:50 pmPorto
May 8
OPO6:00 amPorto
16h 40m
1 stop
DEN3:40 pmDenver Intl
$504
Lufthansa
May 4
DEN5:40 pmDenver Intl
22h 20m
1 stop
OPO11:00 pmPorto
May 7
OPO6:00 amPorto
16h 40m
1 stop
DEN3:40 pmDenver Intl
$506
Lufthansa
May 4
DEN5:40 pmDenver Intl
22h 20m
1 stop
OPO11:00 pmPorto
May 8
OPO6:00 amPorto
25h 44m
2 stops
DEN12:44 amDenver Intl
$516

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Porto 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 February 3, 2026.
Use the filters below to find and compare flights from Colorado to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 5/4

5:40 pm-10:50 pm

1 stop22h 10m

Porto

Fri 5/8

8:40 am-8:28 pm

2 stops18h 48m

$494

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 5/4

5:40 pm-10:50 pm

1 stop22h 10m

Porto

Fri 5/8

6:00 am-3:40 pm

1 stop16h 40m

$504

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 5/4

5:40 pm-11:00 pm

1 stop22h 20m

Porto

Thu 5/7

6:00 am-3:40 pm

1 stop16h 40m

$506

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 5/4

5:40 pm-10:50 pm

1 stop22h 10m

Porto

Fri 5/8

8:40 am-9:08 pm

2 stops19h 28m

$510

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 5/4

5:40 pm-11:00 pm

1 stop22h 20m

Porto

Fri 5/8

6:00 am-12:44 am

2 stops25h 44m

$516

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 5/4

2:39 pm-4:00 pm

2 stops18h 21m

Porto

Fri 5/8

12:25 pm-11:45 pm

2 stops18h 20m

$525

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 4/27

4:05 pm-11:25 pm

1 stop24h 20m

Porto

Thu 5/7

6:00 am-11:10 pm

2 stops24h 10m

$536

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/3

12:46 pm-9:30 am

1 stop13h 44m

Porto

Tue 3/10

6:00 am-5:00 pm

1 stop17h 00m

$549

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 4/20

4:05 pm-11:25 pm

1 stop24h 20m

Porto

Tue 4/28

6:20 am-2:20 pm

1 stop15h 00m

$553

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/3

7:45 am-9:30 am

2 stops18h 45m

Porto

Tue 3/10

6:00 am-5:00 pm

1 stop17h 00m

$554

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 Porto from

How to get the cheapest flight ticket from Colorado to Porto

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 cheapest month to fly to Porto?

The month of March is, on average, the cheapest month to fly to Porto from Colorado, with most prices found around $794. If you aren’t able to travel during the month of March, then book flights to Porto from Colorado during November instead. Flights to Porto in November, while not as cheap as those in March, still average around $800.

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

You are more likely to see cheaper flights to Porto from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $976 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Colorado for as low as $790 on momondo.

Can stopping save me money on Colorado to Porto flights?

You could potentially save up to 23% on your flight if you consider stops on a Colorado to Porto flight.

Cheap Colorado to Porto flight deals and tips

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

Fastest flight time

12h 25m

Direct flights

None
The fastest flight from Colorado to Porto takes 12h 25m
There are no direct flights from Colorado to Porto. There are no popular flight routes from Colorado to Porto.
Search flight deals

  • When did momondo last update prices for flights from Colorado to Porto Airport?

    Prices for flights from Colorado to Porto Airport refresh daily.

  • How many operators does momondo search for flights from Colorado to Porto Airport?

  • How old do you have to be to fly from Colorado to Porto Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents you'll need for your trip to Porto Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Porto

Compare and see reviews for airlines that fly from Colorado to Porto with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $574Free CancellationRating
7.3
4,210 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $593Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
LufthansaPriceFrom $641Free CancellationRating
6.8
7,759 reviews
Search Lufthansa flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
Arcos de Valdevez
Viseu
Ponte de Lima
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Porto from Colorado.

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

All flight searches from Colorado to Porto on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Colorado to Porto flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Colorado to Porto flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Porto trip

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