Cheap flights from Seattle to Porto from $359

Round-trip
1 adult
Economy
From?
To?
Thu 10/28
Thu 11/4

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Seattle/Tacoma Intl to Porto.
View current Portugal travel restrictions

Flight information for Seattle to Porto
(SEA to OPO)

Find info about flight duration, direct flights, and airports for your flight from Seattle to Porto
Best Price Found$564The best flight deal from Seattle to Porto found on momondo in the last 72 hours is $564
Fastest flight time13h 20mThe fastest flight from Seattle to Porto takes 13h 20m
Direct flightsNoneThere are no direct flights from Seattle to Porto. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Porto Airport.
Airports in Porto1 airportThere is 1 airport near Porto: Porto (OPO)

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 cheapest month to fly from Seattle to Porto?

February

The cheapest time of year to fly to Porto from Seattle is February. Most expensive is June

What is the cheapest day to depart Seattle for Porto?

Monday

The cheapest day of the week is typically Monday. The most expensive is typically Sunday

When is the cheapest time to fly from Seattle to Porto?

in the evening

Seattle to Porto flights are approximately 36% more expensive in the morning than in the evening

What is the cheapest airline that flies to Porto from Seattle?

British Airways

British Airways, Delta, and Lufthansa are the most popular carriers operating from Seattle to Porto

What is the cheapest Seattle to Porto flight route?

Seattle/Tacoma Intl - Porto

Fly from Seattle/Tacoma Intl to Porto for the best Seattle - Porto flight prices

How far in advance should you book Seattle to Porto flights?

59 days before

The cheapest time to buy a flight from Seattle to Porto is approximately 59 days to departure


Easily compare round-trip flights from Seattle to Porto

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to Porto by changing tabs
Multiple Airlines
Nov 6
SEA3:25 pmSeattle/Tacoma Intl
16h 05m
1 stop
OPO6:30 amPorto
Dec 1
OPO1:25 pmPorto
28h 25m
1 stop
SEA5:50 pmSeattle/Tacoma Intl
British Airways
Nov 6
SEA3:25 pmSeattle/Tacoma Intl
16h 05m
1 stop
OPO6:30 amPorto
Dec 1
OPO1:25 pmPorto
36h 39m
2 stops
SEA2:04 amSeattle/Tacoma Intl
United Airlines
Mar 29
SEA8:08 amSeattle/Tacoma Intl
13h 37m
1 stop
OPO9:45 pmPorto
Apr 20
OPO8:35 amPorto
16h 55m
1 stop
SEA1:30 amSeattle/Tacoma Intl
American Airlines
Feb 11
SEA4:55 amSeattle/Tacoma Intl
22h 10m
2 stops
OPO3:05 amPorto
Mar 7
OPO3:20 amPorto
20h 00m
2 stops
SEA11:20 pmSeattle/Tacoma Intl
Iberia
Nov 8
SEA12:49 amSeattle/Tacoma Intl
30h 16m
2 stops
OPO7:05 amPorto
Nov 18
OPO3:20 amPorto
22h 44m
2 stops
SEA2:04 amSeattle/Tacoma Intl
KLM
Nov 8
SEA8:20 amSeattle/Tacoma Intl
25h 00m
1 stop
OPO9:20 amPorto
Nov 17
OPO12:00 amPorto
15h 00m
1 stop
SEA3:00 pmSeattle/Tacoma Intl

Find the cheapest one-way flights from Seattle to Porto

If you're looking for one-way flights from Seattle to Porto, view some of our deals below provided by American Airlines
Multiple Airlines
Nov 6
SEA6:00 amSeattle/Tacoma Intl
24h 30m
3 stops
OPO5:30 amPorto
American Airlines
Mar 24
SEA8:30 pmSeattle/Tacoma Intl
32h 35m
2 stops
OPO5:05 amPorto
Multiple Airlines
Nov 6
SEA6:00 amSeattle/Tacoma Intl
23h 05m
2 stops
OPO4:05 amPorto

Search last-minute flights to Porto from Seattle

Find and compare flight prices for your last-minute flight from Seattle to Porto
Multiple Airlines
Oct 30
SEA3:03 amSeattle/Tacoma Intl
16h 57m
2 stops
OPO8:00 pmPorto
Nov 7
OPO12:00 pmPorto
25h 39m
2 stops
SEA1:39 pmSeattle/Tacoma Intl
American Airlines
Nov 2
SEA8:44 pmSeattle/Tacoma Intl
32h 21m
2 stops
OPO5:05 amPorto
Nov 17
OPO3:20 amPorto
22h 44m
2 stops
SEA2:04 amSeattle/Tacoma Intl
Multiple Airlines
Oct 30
SEA3:00 amSeattle/Tacoma Intl
26h 00m
2 stops
OPO5:00 amPorto
Nov 7
OPO7:55 amPorto
31h 25m
1 stop
SEA3:20 pmSeattle/Tacoma Intl
Multiple Airlines
Oct 30
SEA4:55 pmSeattle/Tacoma Intl
14h 35m
1 stop
OPO7:30 amPorto
Nov 7
OPO2:20 pmPorto
29h 10m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
American Airlines
Oct 30
SEA2:45 amSeattle/Tacoma Intl
26h 20m
2 stops
OPO5:05 amPorto
Nov 7
OPO3:20 amPorto
24h 37m
3 stops
SEA3:57 amSeattle/Tacoma Intl

Best airlines flying from Seattle to Porto

Compare and see reviews for airlines that fly from Seattle to Porto with momondo
AirlineRatingFree CancellationPrice
Lufthansa
PriceFrom $516
Free Cancellation
Rating
7.4
7.6

Boarding

7.5

Comfort

8.0

Crew

7.1

Entertainment

7.2

Food

Reviews

My luggage got delayed, trying to reach out the airline and no updates for me where my luggage is and when it will be delivered to me.

1 / 10
British Airways
PriceFrom $631
Free Cancellation
Rating
7.0
7.3

Boarding

7.1

Comfort

7.4

Crew

6.6

Entertainment

6.5

Food

Reviews

Delayed and heavy.

1 / 10
Delta
PriceFrom $733
Free Cancellation
Rating
8.2
8.2

Boarding

8.4

Comfort

8.3

Crew

8.1

Entertainment

8.0

Food

Reviews

Great

1 / 10
United Airlines
PriceFrom $979
Free Cancellation
Rating
6.9
7.3

Boarding

6.8

Comfort

7.5

Crew

6.7

Entertainment

6.2

Food

Reviews

Crew is horrible

1 / 10

  • Are airlines flying from Seattle/Tacoma Intl to Porto offering flexible cancellation due to COVID-19?

    Some of our partner airlines flying from Seattle/Tacoma Intl to Porto are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are Lufthansa, United Airlines, and British Airways. You can search for the full list of airlines like Lufthansa that are offering this flexibility.

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

    Seattle/Tacoma Intl and Porto are 5083.1 mi apart from one another. Typically, this will take 13h 37m by plane in normal conditions.


Can I fly to Porto from Seattle/Tacoma Intl right now?

Information is based on travel restrictions from Seattle/Tacoma Intl to Porto

Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter Porto.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 for RT-PCR (NAAT) and 24 Antigen (quick-test) hours before departing to Porto.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Porto.

Documents
Health declaration for Madeira - Travelers must complete and submit it 12-48 hours before departure. This will generate a QR code which must be presented upon arrival.


Can I fly back to Seattle/Tacoma Intl from Porto?

Returning to Seattle/Tacoma Intl from Porto

COVID-19 testing requirements
Visitors from Porto must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Porto are not required to quarantine after entering Seattle/Tacoma Intl.

If you are planning to travel to Porto at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for Seattle to Porto

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Seattle to Lisbon Flights
Fastest flight time15h 35m
Cheapest price$524
Seattle to Faro Flights
Fastest flight time25h 57m
Cheapest price$568
Spokane to Lisbon Flights
Fastest flight time18h 00m
Cheapest price$677
Seattle to Ponta Delgada Flights
Fastest flight time16h 55m
Cheapest price$854

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