How does KAYAK find such low prices on flights from District of Columbia 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 District of Columbia 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 District of Columbia to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from District of Columbia 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 District of Columbia 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 District of Columbia 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 District of Columbia 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 District of Columbia 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>

$329 CHEAP FLIGHTS from District of Columbia to Porto

OPO

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

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Flight Deals

Cheap Flights from District of Columbia to Porto

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 District of Columbia to Porto

Mon, Jun 29 - Mon, Jul 6

6:00 am - 9:45 pm

DCA

OPO

34h 45m

3 stops

10:30 pm - 9:48 pm

OPO

DCA

28h 18m

3 stops

$878Multiple Airlines

Thu, Aug 27 - Sun, Sep 20

10:35 pm - 8:25 pm

IAD

OPO

16h 50m

1 stop

9:00 am - 3:10 pm

OPO

IAD

11h 10m

1 stop

$879TAP AIR PORTUGAL

Fri, Nov 20 - Sat, Nov 28

7:40 pm - 11:30 pm

IAD

OPO

22h 50m

2 stops

8:20 pm - 3:15 pm

OPO

IAD

47h 55m

3 stops

$880Multiple Airlines

Thu, Jul 9 - Mon, Jul 20

11:30 am - 11:45 am

IAD

OPO

19h 15m

1 stop

10:25 pm - 10:46 am

OPO

IAD

41h 21m

2 stops

$882Multiple Airlines

Sat, Aug 29 - Mon, Sep 14

9:45 pm - 11:30 pm

IAD

OPO

20h 45m

1 stop

4:50 pm - 11:35 am

OPO

IAD

23h 45m

1 stop

$883Turkish Airlines

Wed, Sep 2 - Thu, Sep 10

7:15 pm - 3:25 pm

IAD

OPO

15h 10m

2 stops

5:00 am - 3:35 pm

OPO

IAD

15h 35m

1 stop

$884Delta

Sun, Aug 30 - Fri, Sep 11

10:10 pm - 7:00 am

IAD

OPO

27h 50m

2 stops

6:00 am - 9:24 pm

OPO

IAD

20h 24m

2 stops

$886Air Canada

Sat, Jul 4 - Sun, Jul 12

8:30 pm - 8:00 am

IAD

OPO

30h 30m

3 stops

9:15 pm - 8:24 pm

OPO

IAD

28h 09m

3 stops

$887Multiple Airlines

Mon, Jul 6 - Wed, Jul 22

4:20 pm - 7:00 am

DCA

OPO

9h 40m

1 stop

11:20 am - 9:48 pm

OPO

DCA

15h 28m

1 stop

$891Air Canada

Mon, Jul 6 - Wed, Jul 22

4:20 pm - 7:00 am

DCA

OPO

9h 40m

1 stop

11:20 am - 11:58 am

OPO

DCA

29h 38m

2 stops

$906United Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$329

Best time to beat the crowds with an average 25% drop in price.

Most popular time to fly with an average 29% increase in price.

Flight from Washington Dulles Airport to Porto

How does KAYAK find such low prices on flights from District of Columbia 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 District of Columbia to Porto.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Porto?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from District of Columbia 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 District of Columbia 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 District of Columbia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia 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 District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Lamego

Guimarães

Pinhao

Chaves

Esposende

Viseu

Arcos de Valdevez

Espinho

Ponte de Lima

Baiao

Santa Maria da Feira

Caminha

Mira

Amares

Penafiel

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

Return flight deals

Information on the airport you'll fly into in Porto

Porto (OPO)

OPO

$305 Find Cheap Flights from District of Columbia to Porto

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

Cheap Flights from District of Columbia to Porto

Recent round-trip flight deals from District of Columbia to Porto

Recent one-way flight deals from District of Columbia to Porto

Recent last minute flight deals from District of Columbia to Porto

Good to know

FAQs for booking flights from District of Columbia to Porto

How does KAYAK find such low prices on flights from District of Columbia 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 District of Columbia to Porto.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from District of Columbia 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 District of Columbia 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 District of Columbia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia 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 District of Columbia 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 District of Columbia

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

Find deals for your return flight