How does KAYAK find such low prices on flights from Colorado to Porto?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to Porto. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Colorado is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Colorado to Porto?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Colorado with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Porto?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$303 CHEAP FLIGHTS from Colorado to Porto

OPO

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Cheap Flights from Colorado to Porto

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Colorado to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Colorado to Porto

Tue, Oct 28 - Tue, Nov 4

1:45 pm - 9:30 amDEN-OPO

13h 45m1 stop

6:00 am - 4:00 pmOPO-DEN

17h 00m1 stop

$600United Airlines

Find Deal

Tue, Mar 10 - Wed, Mar 18

2:27 pm - 4:00 pmDEN-OPO

19h 33m2 stops

8:40 pm - 5:40 pmOPO-DEN

27h 00m2 stops

$601British Airways

Find Deal

Tue, Mar 10 - Wed, Mar 18

10:25 am - 9:30 amDEN-OPO

17h 05m2 stops

6:00 am - 2:40 pmOPO-DEN

14h 40m1 stop

$604United Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 5

5:20 pm - 5:35 pmDEN-OPO

18h 15m2 stops

1:55 pm - 4:00 pmOPO-DEN

33h 05m2 stops

$623

Find Deal

Wed, Oct 29 - Wed, Nov 5

5:20 pm - 11:40 pmDEN-OPO

24h 20m1 stop

12:30 pm - 11:15 pmOPO-DEN

17h 45m2 stops

$628Lufthansa

Find Deal

Thu, Mar 5 - Fri, Mar 13

1:45 pm - 9:30 amDEN-OPO

12h 45m1 stop

6:15 am - 7:55 pmOPO-DEN

19h 40m1 stop

$661

Find Deal

Mon, Oct 13 - Tue, Oct 21

5:59 pm - 10:50 pmDEN-OPO

21h 51m1 stop

12:05 pm - 11:30 pmOPO-DEN

18h 25m2 stops

$666Lufthansa

Find Deal

Thu, Oct 30 - Sat, Nov 8

7:21 am - 7:40 amDEN-OPO

18h 19m2 stops

8:20 am - 10:22 pmOPO-DEN

21h 02m2 stops

$678American Airlines

Find Deal

Thu, Mar 12 - Thu, Mar 26

11:15 am - 2:45 pmDEN-OPO

21h 30m2 stops

6:00 am - 4:40 pmOPO-DEN

40h 40m2 stops

$679Air Canada

Find Deal

Thu, Nov 20 - Thu, Nov 27

5:30 pm - 11:40 amDEN-OPO

35h 10m2 stops

6:00 am - 8:53 amOPO-DEN

33h 53m2 stops

$734Air Canada

Find Deal

Cheapest round-trip

$600

Overall average: $839

United Airlines

Tue 10/28Tue 11/4

DEN - OPO • 1 stop

Cheapest one-way

$303

Typical prices: $595-831

Multiple Airlines

Tue 10/14

DEN - OPO • 3 stops

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Porto!

Useful Info

Low season	February
High season	July
Cheapest flight	$303

Best time to beat the crowds with an average 21% drop in price.

Most popular time to fly with an average 25% increase in price.

Flight from Denver to Porto

How does KAYAK find such low prices on flights from Colorado to Porto?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to Porto.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Porto?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Colorado is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Colorado to Porto?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Colorado with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Porto?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Lamego

Guimarães

Chaves

Pinhao

Esposende

Arcos de Valdevez

Viseu

Espinho

Ponte de Lima

Caminha

Mira

Baiao

Penafiel

Santa Maria da Feira

Amares

Curia

Everything you need to know for your flight to Porto

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Information on the airport you'll fly into in Porto

Porto (OPO)

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OPO

$303 Find Cheap Flights from Colorado to Porto

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

Cheap Flights from Colorado to Porto

Recent round-trip flight deals from Colorado to Porto

Recent one-way flight deals from Colorado to Porto

Recent last minute flight deals from Colorado to Porto

Everything you should know

Good to know

FAQs for booking flights from Colorado to Porto

How does KAYAK find such low prices on flights from Colorado to Porto?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to Porto.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Colorado to Porto?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Colorado with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Porto?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Porto?

Everything you need to know for your flight to Porto

Information on the airport you'll fly into in Porto

Cabin class types available on flights to Colorado

Complete your trip to Porto with a hotel stay or car rental

Find direct flights for Porto

Flights to other popular destinations

Flights from domestic origins to Porto

Choose which airport to fly into in Porto