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>

$341 CHEAP FLIGHTS from Colorado to Porto

OPO

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

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals

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 21 - Tue, Nov 4

12:55 pm - 7:55 pmDEN-OPO

24h 00m2 stops

8:20 am - 7:58 pmOPO-DEN

18h 38m2 stops

$608Iberia

Find Deal

Tue, Oct 21 - Tue, Nov 4

5:59 pm - 3:45 pmDEN-OPO

14h 46m1 stop

12:30 pm - 11:15 pmOPO-DEN

17h 45m2 stops

$611Lufthansa

Find Deal

Wed, Sep 24 - Fri, Oct 3

9:40 am - 4:35 pmDEN-OPO

23h 55m2 stops

10:40 pm - 6:18 pmOPO-DEN

26h 38m2 stops

$664

Find Deal

Wed, Sep 24 - Fri, Oct 3

9:40 am - 4:35 pmDEN-OPO

23h 55m2 stops

5:55 pm - 6:18 pmOPO-DEN

31h 23m3 stops

$674

Find Deal

Mon, Oct 13 - Tue, Oct 21

11:35 am - 3:45 pmDEN-OPO

21h 10m2 stops

6:00 am - 8:42 amOPO-DEN

33h 42m2 stops

$681Air Canada

Find Deal

Fri, Oct 24 - Sat, Nov 1

7:45 am - 11:25 amDEN-OPO

20h 40m2 stops

6:00 am - 9:50 amOPO-DEN

33h 50m2 stops

$701Air Canada

Find Deal

Mon, Aug 11 - Wed, Aug 20

7:50 am - 9:35 amDEN-OPO

18h 45m2 stops

6:00 am - 10:27 pmOPO-DEN

23h 27m2 stops

$739United Airlines

Find Deal

Wed, Sep 24 - Fri, Oct 3

9:40 am - 9:20 amDEN-OPO

16h 40m1 stop

6:00 am - 11:57 pmOPO-DEN

24h 57m2 stops

$745United Airlines

Find Deal

Tue, Sep 30 - Mon, Oct 13

11:25 am - 9:35 amDEN-OPO

39h 10m2 stops

10:25 am - 4:35 pmOPO-DEN

37h 10m2 stops

$790Austrian Airlines

Find Deal

Fri, Oct 10 - Sat, Oct 18

7:45 am - 5:55 pmDEN-OPO

27h 10m2 stops

6:45 pm - 4:35 pmOPO-DEN

28h 50m2 stops

$910Austrian Airlines

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	$341

Best time to beat the crowds with an average 24% 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

Pinhao

Viseu

Esposende

Arcos de Valdevez

Ponte de Lima

Baiao

Santa Maria da Feira

Amares

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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

OPO

$341 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

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