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Cheap flights from Colorado to Porto from $264

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 7/26. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
4:15 pm - 12:50 pm
DEN
-
OPO
13h 35m
1 stop
Lufthansa Logo
6:00 am - 3:35 pm
OPO
-
DEN
16h 35m
1 stop
$688Lufthansa
Mon, Nov 23 - Fri, Nov 27
Lufthansa Logo
4:15 pm - 12:50 pm
DEN
-
OPO
13h 35m
1 stop
Lufthansa Logo
4:10 pm - 3:35 pm
OPO
-
DEN
30h 25m
1 stop
$707Lufthansa
Sun, Nov 1 - Wed, Nov 11
Lufthansa Logo
4:15 pm - 12:50 pm
DEN
-
OPO
13h 35m
1 stop
Lufthansa Logo
4:10 pm - 3:35 pm
OPO
-
DEN
30h 25m
1 stop
$709Lufthansa
Sun, Nov 1 - Wed, Nov 11
Multiple Airlines Logo
11:50 pm - 9:30 am
DEN
-
OPO
26h 40m
2 stops
Multiple Airlines Logo
6:00 am - 3:35 pm
OPO
-
DEN
16h 35m
1 stop
$711Multiple Airlines
Sat, Dec 5 - Tue, Dec 15
Air Canada Logo
11:15 am - 12:50 pm
DEN
-
OPO
18h 35m
2 stops
Air Canada Logo
6:00 am - 5:18 pm
OPO
-
DEN
18h 18m
2 stops
$713Air Canada
Mon, Nov 23 - Fri, Nov 27
Multiple Airlines Logo
5:30 pm - 9:30 am
DEN
-
OPO
33h 00m
1 stop
Multiple Airlines Logo
6:00 am - 3:35 pm
OPO
-
DEN
16h 35m
1 stop
$718Multiple Airlines
Sat, Dec 5 - Tue, Dec 15
Delta Logo
6:30 am - 9:05 am
DEN
-
OPO
19h 35m
1 stop
Delta Logo
5:00 am - 10:43 pm
OPO
-
DEN
24h 43m
2 stops
$719Delta
Sun, Nov 1 - Wed, Nov 11
Delta Logo
6:45 am - 10:35 am
DEN
-
OPO
20h 50m
2 stops
Delta Logo
5:00 am - 6:18 pm
OPO
-
DEN
20h 18m
2 stops
$722Delta
Sun, Nov 1 - Wed, Nov 11
Delta Logo
6:10 am - 9:05 am
DEN
-
OPO
19h 55m
2 stops
Delta Logo
5:00 am - 7:10 pm
OPO
-
DEN
21h 10m
2 stops
$723Delta
Sun, Nov 1 - Wed, Nov 11
Air Canada Logo
5:30 pm - 11:15 am
DEN
-
OPO
58h 45m
2 stops
Air Canada Logo
6:00 am - 10:23 am
OPO
-
DEN
35h 23m
2 stops
$727Air Canada
Sat, Dec 5 - Tue, Dec 15

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Lufthansa flights from Colorado to Porto

Our best Lufthansa deals on Colorado to Porto flight tickets
Lufthansa
Nov 23
DEN4:15 pmDenver Intl
13h 35m
1 stop
OPO12:50 pmPorto
Nov 27
OPO6:00 amPorto
16h 35m
1 stop
DEN3:35 pmDenver Intl
$688
Lufthansa
Nov 1
DEN4:15 pmDenver Intl
13h 35m
1 stop
OPO12:50 pmPorto
Nov 11
OPO4:10 pmPorto
30h 25m
1 stop
DEN3:35 pmDenver Intl
$709
Lufthansa
Nov 15
DEN4:15 pmDenver Intl
13h 35m
1 stop
OPO12:50 pmPorto
Nov 21
OPO6:00 amPorto
16h 35m
1 stop
DEN3:35 pmDenver Intl
$737

Air Canada flights from Colorado to Porto

Our best Air Canada deals on Colorado to Porto flight tickets
Air Canada
Nov 23
DEN11:15 amDenver Intl
18h 35m
2 stops
OPO12:50 pmPorto
Nov 27
OPO6:00 amPorto
18h 18m
2 stops
DEN5:18 pmDenver Intl
$713
Air Canada
Dec 5
DEN5:30 pmDenver Intl
58h 45m
2 stops
OPO11:15 amPorto
Dec 15
OPO6:00 amPorto
35h 23m
2 stops
DEN10:23 amDenver Intl
$727
Air Canada
Nov 15
DEN11:15 amDenver Intl
18h 35m
2 stops
OPO12:50 pmPorto
Nov 21
OPO6:00 amPorto
18h 18m
2 stops
DEN5:18 pmDenver Intl
$763

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 June 25, 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

Cheapest round-trip
Quickest round-trip

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 11/23

4:15 pm-12:50 pm

1 stop13h 35m

Porto

Fri 11/27

6:00 am-3:35 pm

1 stop16h 35m

$688

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Sun 11/1

4:15 pm-12:50 pm

1 stop13h 35m

Porto

Wed 11/11

4:10 pm-3:35 pm

1 stop30h 25m

$707

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Sun 11/1

4:15 pm-12:50 pm

1 stop13h 35m

Porto

Wed 11/11

4:10 pm-3:35 pm

1 stop30h 25m

$709

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Sat 12/5

11:50 pm-9:30 am

2 stops26h 40m

Porto

Tue 12/15

6:00 am-3:35 pm

1 stop16h 35m

$711

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 11/23

11:15 am-12:50 pm

2 stops18h 35m

Porto

Fri 11/27

6:00 am-5:18 pm

2 stops18h 18m

$713

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Sat 12/5

5:30 pm-9:30 am

1 stop33h 00m

Porto

Tue 12/15

6:00 am-3:35 pm

1 stop16h 35m

$718

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Sun 11/1

6:30 am-9:05 am

1 stop19h 35m

Porto

Wed 11/11

5:00 am-10:43 pm

2 stops24h 43m

$719

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Sun 11/1

6:45 am-10:35 am

2 stops20h 50m

Porto

Wed 11/11

5:00 am-6:18 pm

2 stops20h 18m

$722

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Sun 11/1

6:10 am-9:05 am

2 stops19h 55m

Porto

Wed 11/11

5:00 am-7:10 pm

2 stops21h 10m

$723

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Sat 12/5

5:30 pm-11:15 am

2 stops58h 45m

Porto

Tue 12/15

6:00 am-10:23 am

2 stops35h 23m

$727

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 $450. 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 $485.

How far in advance should I book a flight from Colorado 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 $997 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 $824 on momondo.

Can stopping save me money on Colorado to Porto flights?

You could potentially save up to 24% 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 35m

Direct flights

None
The fastest flight from Colorado to Porto takes 12h 35m
There are no direct flights from Colorado to Porto. There are no popular flight routes from Colorado to Porto.
Search flight deals

Frequently asked questions about flying from Colorado to Porto

  • 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
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,890 reviews
Search United Airlines flights
LufthansaPriceFrom $597Free CancellationRating
6.8
8,094 reviews
Search Lufthansa flights
Air CanadaPriceFrom $700Free CancellationRating
7.1
11,260 reviews
Search Air Canada flights
Turkish AirlinesPriceFrom $701Free CancellationRating
7.4
4,421 reviews
Search Turkish Airlines 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
Lamego
Esposende
Chaves
Pinhao
Guimarães
Arcos de Valdevez
Espinho
Ponte de Lima
Viseu
Curia
Mesao Frio
Penafiel
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.

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