OPO

$265 Find Cheap Flights from Washington to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Porto departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Flights Deals

Cheap Flights from Washington to Porto

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington 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.

Recent round-trip flight deals from Washington to Porto

Mon, Nov 24 - Fri, Dec 5
 Logo
2:00 pm - 2:55 pmSEA-OPO
16h 55m1 stop
 Logo
6:15 am - 7:16 pmOPO-SEA
21h 01m2 stops
Mon, Nov 24 - Fri, Dec 5
 Logo
10:05 am - 11:40 amSEA-OPO
17h 35m2 stops
 Logo
6:15 am - 7:16 pmOPO-SEA
21h 01m2 stops
Tue, Oct 14 - Wed, Nov 5
United Airlines Logo
11:40 pm - 9:45 amSEA-OPO
26h 05m2 stops
United Airlines Logo
12:30 pm - 12:10 pmOPO-SEA
31h 40m1 stop
$609United Airlines
Find Deal
Mon, Nov 24 - Fri, Dec 5
Lufthansa Logo
2:00 pm - 2:55 pmSEA-OPO
16h 55m1 stop
Lufthansa Logo
6:15 am - 1:20 pmOPO-SEA
15h 05m1 stop
$612Lufthansa
Find Deal
Tue, Oct 14 - Wed, Nov 5
Lufthansa Logo
2:20 pm - 3:45 pmSEA-OPO
17h 25m1 stop
Lufthansa Logo
4:15 pm - 12:10 pmOPO-SEA
27h 55m1 stop
$620Lufthansa
Find Deal
Wed, Oct 1 - Wed, Oct 8
Turkish Airlines Logo
7:10 pm - 3:50 pmSEA-OPO
36h 40m1 stop
Turkish Airlines Logo
4:50 pm - 5:15 pmOPO-SEA
32h 25m1 stop
$625Turkish Airlines
Find Deal
Tue, Oct 14 - Wed, Nov 5
SWISS Logo
3:28 pm - 7:45 amSEA-OPO
32h 17m2 stops
SWISS Logo
7:20 pm - 10:29 pmOPO-SEA
35h 09m2 stops
$636SWISS
Find Deal
Sat, Nov 1 - Sun, Nov 9
United Airlines Logo
11:50 pm - 9:30 amSEA-OPO
26h 40m2 stops
United Airlines Logo
6:00 am - 9:53 amOPO-SEA
35h 53m2 stops
$644United Airlines
Find Deal
Sat, Aug 30 - Fri, Sep 12
Turkish Airlines Logo
12:30 pm - 4:10 pmSEA-OPO
19h 40m1 stop
Turkish Airlines Logo
4:50 pm - 10:35 amOPO-SEA
25h 45m1 stop
$662Turkish Airlines
Find Deal
Mon, Aug 25 - Mon, Sep 1
SWISS Logo
8:30 am - 7:55 amPDX-OPO
39h 25m2 stops
SWISS Logo
7:20 pm - 6:46 pmOPO-PDX
31h 26m2 stops
$882SWISS
Find Deal
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Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$265
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Seattle to Porto

FAQs for booking flights from Washington to Porto

  • How does KAYAK find such low prices on flights from Washington 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 Washington to Porto.

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

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

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

Book flights to Porto if you plan to visit one of these locations
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

Information on the airport you'll fly into in Porto

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