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Cheap flights from Washington to Porto from $287

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
2:50 pm - 12:50 pmSEA  Seattle/Tacoma Intl-OPO Porto
14h 00m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:15 am - 1:00 pmOPO  Porto-SEA Seattle/Tacoma Intl
14h 45m1 stop Munich Franz Josef Strauss
$701Lufthansa
Sun, Feb 28 - Fri, Mar 5
Lufthansa Logo
2:50 pm - 12:50 pmSEA  Seattle/Tacoma Intl-OPO Porto
14h 00m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:00 am - 11:21 pmOPO  Porto-SEA Seattle/Tacoma Intl
25h 21m2 stops Frankfurt am Main Chicago O'Hare Intl
$707Lufthansa
Sun, Feb 28 - Fri, Mar 5
Multiple Airlines Logo
10:10 am - 11:45 amSEA  Seattle/Tacoma Intl-OPO Porto
17h 35m2 stops Vancouver Intl Frankfurt am Main
Multiple Airlines Logo
6:00 am - 9:57 pmOPO  Porto-SEA Seattle/Tacoma Intl
23h 57m2 stops Frankfurt am Main Vancouver Intl
$712Multiple Airlines
Mon, Feb 15 - Tue, Feb 23
Multiple Airlines Logo
2:10 pm - 11:00 pmSEA  Seattle/Tacoma Intl-OPO Porto
24h 50m1 stop Frankfurt am Main
Multiple Airlines Logo
6:00 am - 9:58 pmOPO  Porto-SEA Seattle/Tacoma Intl
23h 58m2 stops Frankfurt am Main Vancouver Intl
$715Multiple Airlines
Mon, Apr 12 - Fri, Apr 30
Delta Logo
6:35 pm - 10:00 pmSEA  Seattle/Tacoma Intl-OPO Porto
19h 25m1 stop Paris Charles de Gaulle
Delta Logo
11:45 am - 11:33 amOPO  Porto-SEA Seattle/Tacoma Intl
31h 48m1 stop Amsterdam Schiphol
$722Delta
Wed, Apr 7 - Thu, Apr 15
Delta Logo
3:30 pm - 9:55 pmSEA  Seattle/Tacoma Intl-OPO Porto
22h 25m1 stop Paris Charles de Gaulle
Delta Logo
11:15 am - 11:50 amOPO  Porto-SEA Seattle/Tacoma Intl
32h 35m1 stop Amsterdam Schiphol
$722Delta
Sun, Feb 14 - Tue, Feb 23
United Airlines Logo
8:30 am - 9:45 amSEA  Seattle/Tacoma Intl-OPO Porto
17h 15m2 stops Denver Intl Newark
United Airlines Logo
6:00 am - 12:20 pmOPO  Porto-SEA Seattle/Tacoma Intl
14h 20m1 stop Frankfurt am Main
$722United Airlines
Wed, Apr 7 - Fri, Apr 16
United Airlines Logo
8:30 am - 9:45 amSEA  Seattle/Tacoma Intl-OPO Porto
17h 15m2 stops Denver Intl Newark
United Airlines Logo
6:00 am - 12:20 pmOPO  Porto-SEA Seattle/Tacoma Intl
14h 20m1 stop Frankfurt am Main
$722United Airlines
Wed, Apr 7 - Wed, Apr 21
Air France Logo
5:05 pm - 10:00 pmSEA  Seattle/Tacoma Intl-OPO Porto
21h 55m1 stop Paris Charles de Gaulle
Air France Logo
5:55 am - 2:50 pmOPO  Porto-SEA Seattle/Tacoma Intl
15h 55m1 stop Paris Charles de Gaulle
$730Air France
Tue, Mar 16 - Tue, Mar 23
Air France Logo
4:05 pm - 10:00 pmSEA  Seattle/Tacoma Intl-OPO Porto
21h 55m1 stop Paris Charles de Gaulle
Air France Logo
5:55 am - 3:13 pmOPO  Porto-SEA Seattle/Tacoma Intl
17h 18m1 stop Paris Charles de Gaulle
$8,352Air France
Tue, Dec 1 - Wed, Dec 16

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United Airlines flights from State of Washington to Porto

Our best United Airlines deals on State of Washington to Porto flight tickets
United Airlines
Mar 23
SEA5:07 amSeattle/Tacoma Intl
21h 23m
2 stops
OPO9:30 amPorto
Apr 2
OPO6:00 amPorto
14h 20m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$723
United Airlines
Apr 24
SEA7:32 pmSeattle/Tacoma Intl
30h 13m
3 stops
OPO9:45 amPorto
Apr 30
OPO6:00 amPorto
14h 20m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$727
United Airlines
Apr 24
SEA10:45 pmSeattle/Tacoma Intl
27h 00m
1 stop
OPO9:45 amPorto
Apr 30
OPO6:00 amPorto
14h 20m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$734

Lufthansa flights from State of Washington to Porto

Our best Lufthansa deals on State of Washington to Porto flight tickets
Lufthansa
Feb 28
SEA2:50 pmSeattle/Tacoma Intl
14h 00m
1 stop
OPO12:50 pmPorto
Mar 5
OPO6:15 amPorto
14h 45m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
$701
Lufthansa
Feb 28
SEA2:50 pmSeattle/Tacoma Intl
14h 00m
1 stop
OPO12:50 pmPorto
Mar 5
OPO6:00 amPorto
25h 21m
2 stops
SEA11:21 pmSeattle/Tacoma Intl
$707
Lufthansa
Feb 14
SEA2:50 pmSeattle/Tacoma Intl
14h 00m
1 stop
OPO12:50 pmPorto
Feb 23
OPO6:00 amPorto
23h 57m
2 stops
SEA9:57 pmSeattle/Tacoma Intl
$719

momondo Fare Finder

 
Use the filters below to find and compare flights from Washington to Porto that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Sun 2/28

2:50 pm-12:50 pm

1 stop14h 00m

Porto

Fri 3/5

6:15 am-1:00 pm

1 stop14h 45m

$701

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Sun 2/28

2:50 pm-12:50 pm

1 stop14h 00m

Porto

Fri 3/5

6:00 am-11:21 pm

2 stops25h 21m

$707

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Mon 2/15

10:10 am-11:45 am

2 stops17h 35m

Porto

Tue 2/23

6:00 am-9:57 pm

2 stops23h 57m

$712

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Mon 4/12

2:10 pm-11:00 pm

1 stop24h 50m

Porto

Fri 4/30

6:00 am-9:58 pm

2 stops23h 58m

$715

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Wed 4/7

6:35 pm-10:00 pm

1 stop19h 25m

Porto

Thu 4/15

11:45 am-11:33 am

1 stop31h 48m

$722

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Sun 2/14

3:30 pm-9:55 pm

1 stop22h 25m

Porto

Tue 2/23

11:15 am-11:50 am

1 stop32h 35m

$722

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Wed 4/7

8:30 am-9:45 am

2 stops17h 15m

Porto

Fri 4/16

6:00 am-12:20 pm

1 stop14h 20m

$722

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Wed 4/7

8:30 am-9:45 am

2 stops17h 15m

Porto

Wed 4/21

6:00 am-12:20 pm

1 stop14h 20m

$722

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Tue 3/16

5:05 pm-10:00 pm

1 stop21h 55m

Porto

Tue 3/23

5:55 am-2:50 pm

1 stop15h 55m

$730

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Tue 12/1

4:05 pm-10:00 pm

1 stop21h 55m

Porto

Wed 12/16

5:55 am-3:13 pm

1 stop17h 18m

$8,352

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from State of Washington to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from State of Washington, with most prices found around $498. If you aren’t able to travel during the month of January, then book flights to Porto from State of Washington during March instead. Flights to Porto in March, while not as cheap as those in January, still average around $691.

How far in advance should I book a flight from Washington to Porto?

You are more likely to see cheaper flights to Porto from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $904 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from State of Washington for as low as $758 on momondo.

Can stopping save me money on State of Washington to Porto flights?

You could potentially save up to 2% on your flight if you consider stops on a State of Washington to Porto flight.

Cheap State of Washington to Porto flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Porto

Best Price Found

$287

Fastest flight time

14h 00m

Direct flights

None
The best one-way flight to Porto from State of Washington in the past 72 hours is $287. The best round-trip flight deal from State of Washington to Porto found on momondo in the last 72 hours is $701.
The fastest flight from State of Washington to Porto takes 14h 00m
There are no direct flights from State of Washington to Porto. There are no popular flight routes from State of Washington to Porto.
Search flight deals

Frequently asked questions about flying from Washington to Porto

  • When did momondo last update prices for flights from Washington to Porto Airport?

    Prices for flights from Washington to Porto Airport are updated daily.

  • How many operators does momondo search for flights from Washington to Porto Airport?

  • How old do you have to be to fly from Washington to Porto Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents you'll need for your trip to Porto Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Porto

Compare and see reviews for airlines that fly from State of Washington to Porto with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $490Free CancellationRating
7.8
1,599 reviews
Search KLM flights
LufthansaPriceFrom $503Free CancellationRating
6.8
8,294 reviews
Search Lufthansa flights
DeltaPriceFrom $591Free CancellationRating
7.8
8,708 reviews
Search Delta flights
Air CanadaPriceFrom $660Free CancellationRating
7.1
11,888 reviews
Search Air Canada flights
United AirlinesPriceFrom $691Free CancellationRating
7.3
10,478 reviews
Search United Airlines flights
Air FrancePriceFrom $795Free CancellationRating
7.5
1,648 reviews
Search Air France flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Braga
Coimbra
Vila Nova de Gaia
Aveiro
Pinhao
Esposende
Matosinhos
Chaves
Viseu
Espinho
Arcos de Valdevez
Lamego
Guimarães
Caminha
Penafiel
Ponte de Lima
Mira

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Porto?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Porto. momondo saves you time and could save you money on your trip.

Can I find flights from Washington to Porto with flexible booking policies on momondo?

momondo does allow users to show only those flights to Porto from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Porto?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Porto.

I’m not ready to book a flight from Washington to Porto right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington to Porto flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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