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Cheap flights from Seattle to Porto from R5 475

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Porto

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
15:25 - 22:00SEA  Seattle/Tacoma Intl-OPO Porto
22h 35m1 stop Paris Charles de Gaulle
Delta Logo
11:15 - 11:50OPO  Porto-SEA Seattle/Tacoma Intl
32h 35m1 stop Amsterdam Schiphol
R12 065Delta
Mon, Nov 23 - Thu, Dec 3
Delta Logo
7:15 - 8:15SEA  Seattle/Tacoma Intl-OPO Porto
17h 00m1 stop New York John F Kennedy Intl
Delta Logo
5:00 - 11:50OPO  Porto-SEA Seattle/Tacoma Intl
14h 50m1 stop Amsterdam Schiphol
R12 081Delta
Wed, Nov 25 - Wed, Dec 9
Delta Logo
16:05 - 10:35SEA  Seattle/Tacoma Intl-OPO Porto
34h 30m1 stop Paris Charles de Gaulle
Delta Logo
11:15 - 11:50OPO  Porto-SEA Seattle/Tacoma Intl
32h 35m1 stop Amsterdam Schiphol
R12 098Delta
Tue, Nov 24 - Mon, Dec 7
Multiple Airlines Logo
6:00 - 9:30SEA  Seattle/Tacoma Intl-OPO Porto
19h 30m2 stops Los Angeles Newark
Multiple Airlines Logo
6:00 - 21:57OPO  Porto-SEA Seattle/Tacoma Intl
23h 57m2 stops Frankfurt am Main Vancouver Intl
R12 130Multiple Airlines
Wed, Nov 11 - Thu, Dec 3
Delta Logo
22:52 - 10:35SEA  Seattle/Tacoma Intl-OPO Porto
27h 43m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
Delta Logo
5:00 - 11:50OPO  Porto-SEA Seattle/Tacoma Intl
14h 50m1 stop Amsterdam Schiphol
R12 147Delta
Mon, Nov 23 - Wed, Dec 9
Delta Logo
23:47 - 8:15SEA  Seattle/Tacoma Intl-OPO Porto
24h 28m2 stops Minneapolis St Paul New York John F Kennedy Intl
Delta Logo
11:15 - 11:50OPO  Porto-SEA Seattle/Tacoma Intl
32h 35m1 stop Amsterdam Schiphol
R12 163Delta
Tue, Nov 24 - Wed, Dec 9
Delta Logo
15:25 - 22:00SEA  Seattle/Tacoma Intl-OPO Porto
22h 35m1 stop Paris Charles de Gaulle
Delta Logo
5:55 - 15:13OPO  Porto-SEA Seattle/Tacoma Intl
17h 18m1 stop Paris Charles de Gaulle
R12 196Delta
Mon, Nov 23 - Fri, Dec 4
Delta Logo
16:05 - 10:35SEA  Seattle/Tacoma Intl-OPO Porto
34h 30m1 stop Paris Charles de Gaulle
Delta Logo
5:55 - 15:13OPO  Porto-SEA Seattle/Tacoma Intl
17h 18m1 stop Paris Charles de Gaulle
R12 212Delta
Tue, Nov 24 - Fri, Dec 4
United Airlines Logo
6:30 - 9:30SEA  Seattle/Tacoma Intl-OPO Porto
19h 00m1 stop Newark
United Airlines Logo
12:35 - 9:44OPO  Porto-SEA Seattle/Tacoma Intl
29h 09m2 stops Frankfurt am Main San Francisco
R12 229United Airlines
Mon, Nov 23 - Wed, Dec 9
United Airlines Logo
6:00 - 9:30SEA  Seattle/Tacoma Intl-OPO Porto
19h 30m2 stops Los Angeles Newark
United Airlines Logo
6:00 - 13:22OPO  Porto-SEA Seattle/Tacoma Intl
39h 22m3 stops Frankfurt am Main Toronto Pearson Intl Houston George Bush Intcntl
R12 262United Airlines
Wed, Nov 11 - Thu, Dec 3

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Delta flights from Seattle to Porto

Our best Delta deals on Seattle to Porto flight tickets
Delta
Nov 23
SEA15:25Seattle/Tacoma Intl
22h 35m
1 stop
OPO22:00Porto
Dec 3
OPO11:15Porto
32h 35m
1 stop
SEA11:50Seattle/Tacoma Intl
R12 065
Delta
Nov 25
SEA7:15Seattle/Tacoma Intl
17h 00m
1 stop
OPO8:15Porto
Dec 3
OPO11:15Porto
32h 35m
1 stop
SEA11:50Seattle/Tacoma Intl
R12 081
Delta
Nov 24
SEA16:05Seattle/Tacoma Intl
34h 30m
1 stop
OPO10:35Porto
Dec 7
OPO11:15Porto
32h 35m
1 stop
SEA11:50Seattle/Tacoma Intl
R12 098

SWISS flights from Seattle to Porto

Our best SWISS deals on Seattle to Porto flight tickets
SWISS
Nov 23
SEA15:35Seattle/Tacoma Intl
35h 40m
2 stops
OPO11:15Porto
Dec 6
OPO12:05Porto
42h 38m
2 stops
SEA22:43Seattle/Tacoma Intl
R13 130
SWISS
Oct 6
SEA7:00Seattle/Tacoma Intl
26h 35m
2 stops
OPO17:35Porto
Oct 14
OPO18:45Porto
31h 47m
2 stops
SEA18:32Seattle/Tacoma Intl
R15 343
SWISS
Oct 7
SEA13:19Seattle/Tacoma Intl
21h 11m
2 stops
OPO18:30Porto
Oct 14
OPO18:45Porto
31h 47m
2 stops
SEA18:32Seattle/Tacoma Intl
R16 278

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Mon 23/11

15:25-22:00

1 stop22h 35m

Porto

Thu 3/12

11:15-11:50

1 stop32h 35m

R12 065
Fastest return journey

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Wed 25/11

7:15-8:15

1 stop17h 00m

Porto

Wed 9/12

5:00-11:50

1 stop14h 50m

R12 081

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Tue 24/11

16:05-10:35

1 stop34h 30m

Porto

Mon 7/12

11:15-11:50

1 stop32h 35m

R12 098

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Wed 11/11

6:00-9:30

2 stops19h 30m

Porto

Thu 3/12

6:00-21:57

2 stops23h 57m

R12 130

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Mon 23/11

22:52-10:35

2 stops27h 43m

Porto

Wed 9/12

5:00-11:50

1 stop14h 50m

R12 147

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Tue 24/11

23:47-8:15

2 stops24h 28m

Porto

Wed 9/12

11:15-11:50

1 stop32h 35m

R12 163

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Mon 23/11

15:25-22:00

1 stop22h 35m

Porto

Fri 4/12

5:55-15:13

1 stop17h 18m

R12 196

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Tue 24/11

16:05-10:35

1 stop34h 30m

Porto

Fri 4/12

5:55-15:13

1 stop17h 18m

R12 212

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Mon 23/11

6:30-9:30

1 stop19h 00m

Porto

Wed 9/12

12:35-9:44

2 stops29h 09m

R12 229

SeattlePorto

SEA Seattle/Tacoma Intl - OPO Porto

SEAOPO

Seattle/Tacoma Intl

Wed 11/11

6:00-9:30

2 stops19h 30m

Porto

Thu 3/12

6:00-13:22

3 stops39h 22m

R12 262

Flights are sorted by cheapest return 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 Seattle 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 typical price of a round-trip flight between Seattle and Porto?

Prices are currently low for flights on this route.

Typical prices usually range from R12 425 to R14 835.
The lowest price recently found on this route was R12 065.

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Seattle, with most prices found around R8 163. The month of March is another great option to travel to Porto, with average flight prices from Seattle averaging around R11 147.

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

You are more likely to see cheaper flights to Porto from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around R14 719 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Seattle for as low as R12 212 on momondo.

How have Seattle to Porto flight prices changed over time?

When to book flights from Seattle to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seattle to Porto (SEA to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Porto

Best price found

R5 475

Direct flights

None
The best one-way flight to Porto from Seattle in the past 72 hours is R5 475. The best return flight deal from Seattle to Porto found on momondo in the last 72 hours is R12 065.
There are no direct flights from Seattle to Porto. There are no popular flight routes from Seattle to Porto.
Search flight deals

Frequently asked questions about flying from Seattle to Porto

  • How far is Seattle/Tacoma Intl to Porto by plane?

    A flight from Seattle/Tacoma Intl to Porto will travel around 8180,4 km.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Porto Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Porto Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport 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 stopovers 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 Seattle/Tacoma Intl Airport to Porto Airport.

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

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Espinho
Braga
Vila Nova de Gaia
Coimbra
Viseu
Lamego

Why use momondo?

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

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

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

All flight searches from Seattle to Porto on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle 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 Seattle to Porto.

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

Of course. momondo tracks the price of Seattle 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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