$434 Find Cheap Flights from Porto to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Porto to Washington departing on 5/12. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Washington, as well as popular online travel agencies
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Booking Insights
Flight Deals

Book Cheap Porto to Washington Plane Tickets

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

Sun, Apr 19 - Sat, Apr 25
Multiple Airlines Logo
9:45 pm - 9:33 am
OPO
-
SEA
43h 48m
3 stops
Multiple Airlines Logo
7:00 pm - 9:20 pm
SEA
-
OPO
18h 20m
3 stops
$836Multiple Airlines
Mon, Feb 16 - Tue, Feb 24
Delta Logo
5:00 am - 11:40 am
OPO
-
SEA
14h 40m
1 stop
Delta Logo
1:40 pm - 10:30 am
SEA
-
OPO
12h 50m
1 stop
$862Delta
Sun, Mar 1 - Sun, Mar 8
Delta Logo
5:00 am - 11:35 am
OPO
-
SEA
14h 35m
1 stop
Delta Logo
4:05 pm - 10:25 pm
SEA
-
OPO
23h 20m
1 stop
$868Delta
Sun, Mar 1 - Sun, Mar 8
Multiple Airlines Logo
6:00 pm - 5:00 pm
OPO
-
SEA
31h 00m
3 stops
Multiple Airlines Logo
3:00 pm - 11:45 pm
SEA
-
OPO
25h 45m
2 stops
$870Multiple Airlines
Sun, Mar 1 - Sun, Mar 8
Multiple Airlines Logo
9:55 pm - 5:00 pm
OPO
-
SEA
27h 05m
3 stops
Multiple Airlines Logo
3:35 pm - 8:10 am
SEA
-
OPO
33h 35m
3 stops
$877Multiple Airlines
Sun, Apr 19 - Sat, Apr 25
Multiple Airlines Logo
9:45 pm - 9:53 pm
OPO
-
SEA
32h 08m
2 stops
Multiple Airlines Logo
7:00 pm - 9:20 pm
SEA
-
OPO
18h 20m
3 stops
$878Multiple Airlines
Fri, Mar 20 - Fri, Mar 27
KLM Logo
5:00 am - 12:35 pm
OPO
-
SEA
14h 35m
1 stop
KLM Logo
4:05 pm - 9:55 am
SEA
-
OPO
34h 50m
1 stop
$887KLM
Wed, Apr 15 - Sun, Apr 19
Air Canada Logo
6:00 am - 9:33 am
OPO
-
SEA
35h 33m
2 stops
Air Canada Logo
8:00 pm - 3:40 pm
SEA
-
OPO
35h 40m
2 stops
$894Air Canada
Wed, Apr 15 - Sun, Apr 19
United Airlines Logo
6:00 am - 11:27 pm
OPO
-
SEA
25h 27m
3 stops
United Airlines Logo
7:00 am - 9:45 am
SEA
-
OPO
18h 45m
2 stops
$895United Airlines
Wed, Apr 15 - Sun, Apr 19
Air Canada Logo
6:00 am - 9:33 am
OPO
-
SEA
35h 33m
2 stops
Air Canada Logo
8:00 pm - 3:40 pm
SEA
-
OPO
35h 40m
2 stops
$896Air Canada
Booking Insights

KAYAK's insights & trends for Porto to Washington flights

Get data-powered insights and trends into flights from Porto to Washington to help you find the cheapest flights, the best time to fly and much more.

How long does a flight from Porto to Washington take?

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from Porto is to Seattle, which takes 14h 35m.

Find deals

Good to know

Low seasonApril
Cheapest flight$444
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Porto to Seattle

FAQs - booking Washington flights

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

    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 Porto to Washington.

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

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

    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 from Porto to Washington with an airline and back with another airline.

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

    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 from Porto to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Porto to Washington

Information on your arrival and departure airports

Porto (OPO)