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Cheap flights from Seattle to Portugal from $325

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Portugal departing on 5/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Portugal

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Portugal.
Icelandair Logo
3:45 pm - 9:20 pmSEA-LIS
21h 35m1 stop
Icelandair Logo
10:25 pm - 5:50 pmLIS-SEA
27h 25m1 stop
$563Icelandair
Find Deal
Sat, Apr 26 - Sun, May 11
Icelandair Logo
7:00 pm - 9:20 pmSEA-LIS
18h 20m1 stop
Icelandair Logo
10:25 pm - 5:50 pmLIS-SEA
27h 25m1 stop
$569Icelandair
Find Deal
Sat, Apr 26 - Sun, May 11
British Airways Logo
1:30 pm - 2:25 pmSEA-LIS
16h 55m1 stop
British Airways Logo
11:05 am - 9:59 pmLIS-SEA
18h 54m1 stop
$711British Airways
Find Deal
Tue, Apr 22 - Fri, May 2
British Airways Logo
1:35 pm - 11:05 pmSEA-LIS
25h 30m2 stops
British Airways Logo
6:35 am - 11:09 pmLIS-SEA
24h 34m2 stops
$714British Airways
Find Deal
Sun, May 4 - Fri, May 16
Delta Logo
6:00 am - 3:30 pmSEA-OPO
25h 30m2 stops
Delta Logo
11:25 am - 4:00 pmOPO-SEA
36h 35m1 stop
$716Delta
Find Deal
Mon, Apr 14 - Mon, Apr 28
Delta Logo
8:15 am - 10:40 amSEA-OPO
18h 25m2 stops
Delta Logo
6:20 am - 3:57 pmOPO-SEA
17h 37m1 stop
$720Delta
Find Deal
Wed, Apr 23 - Wed, May 7
United Airlines Logo
5:23 pm - 9:20 amSEA-OPO
31h 57m2 stops
United Airlines Logo
12:50 pm - 6:09 pmOPO-SEA
37h 19m3 stops
$777United Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 19
United Airlines Logo
12:20 am - 7:45 amSEA-OPO
23h 25m2 stops
United Airlines Logo
12:50 pm - 6:09 pmOPO-SEA
37h 19m3 stops
$782United Airlines
Find Deal
Mon, Aug 4 - Tue, Aug 19
Air France Logo
7:20 am - 10:45 amSEA-LIS
19h 25m1 stop
Air France Logo
6:50 pm - 11:15 amLIS-SEA
24h 25m1 stop
$826Air France
Find Deal
Mon, Aug 4 - Mon, Aug 18
Air France Logo
7:20 am - 10:45 amSEA-LIS
19h 25m1 stop
Air France Logo
6:50 pm - 10:10 pmLIS-SEA
35h 20m2 stops
$886Air France
Find Deal
Mon, Aug 4 - Mon, Aug 18

Icelandair flights from Seattle to Portugal

Our best Icelandair deals on Seattle to Portugal flight tickets
Icelandair
Apr 26
SEA3:45 pmSeattle/Tacoma Intl
21h 35m
1 stop
LIS9:20 pmLisbon Humberto Delgado
May 11
LIS10:25 pmLisbon Humberto Delgado
27h 25m
1 stop
SEA5:50 pmSeattle/Tacoma Intl
Icelandair
Apr 26
SEA7:00 pmSeattle/Tacoma Intl
18h 20m
1 stop
LIS9:20 pmLisbon Humberto Delgado
May 11
LIS10:25 pmLisbon Humberto Delgado
27h 25m
1 stop
SEA5:50 pmSeattle/Tacoma Intl
Icelandair
Apr 30
SEA7:00 pmSeattle/Tacoma Intl
18h 20m
1 stop
LIS9:20 pmLisbon Humberto Delgado
May 11
LIS10:25 pmLisbon Humberto Delgado
30h 15m
1 stop
SEA8:40 pmSeattle/Tacoma Intl

American Airlines flights from Seattle to Portugal

Our best American Airlines deals on Seattle to Portugal flight tickets
American Airlines
Apr 28
SEA1:30 pmSeattle/Tacoma Intl
15h 15m
1 stop
LIS12:45 pmLisbon Humberto Delgado
May 14
LIS11:05 amLisbon Humberto Delgado
18h 45m
1 stop
SEA9:50 pmSeattle/Tacoma Intl
American Airlines
Aug 5
SEA1:33 pmSeattle/Tacoma Intl
18h 22m
2 stops
OPO3:55 pmPorto
Aug 19
OPO12:20 pmPorto
20h 24m
2 stops
SEA12:44 amSeattle/Tacoma Intl
American Airlines
Apr 13
SEA10:59 pmSeattle/Tacoma Intl
26h 06m
1 stop
LIS9:05 amLisbon Humberto Delgado
Apr 30
LIS11:05 amLisbon Humberto Delgado
18h 47m
2 stops
SEA9:52 pmSeattle/Tacoma Intl

See travel insights to Portugal from

How to get the cheapest flight ticket from Seattle to Portugal

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 Portugal?

The cheapest month to fly to Portugal from Seattle is in January. Flight prices, which tend to average around $765, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Seattle during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $766.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Monday is the cheapest day to fly to Portugal from Seattle. The lowest ticket price found for a Monday departure recently was $908. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $1,111.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the afternoon. Flights from Seattle to Portugal during this time can be as low as $959. At noon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,074 per ticket.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Seattle when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $984 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Seattle for as low as $919 on momondo.

Cheap Seattle to Portugal flight deals and tips

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

Best Price Found

$325

Fastest flight time

13h 25m

Direct flights

None

Airports in Portugal

5 airports
The best one-way flight to Portugal from Seattle in the past 72 hours is $325. The best round-trip flight deal from Seattle to Portugal found on momondo in the last 72 hours is $563.
The fastest flight from Seattle to Portugal takes 13h 25m
There are no direct flights from Seattle to Portugal. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Lisbon Humberto Delgado Airport and Seattle/Tacoma Intl Airport - Porto Airport.
There are 5 airports near Portugal: Faro (FAO), Lisbon Humberto Delgado (LIS), Ponta Delgada Nordela (PDL), Funchal Madeira (FNC), Porto (OPO)

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

    Prices for flights from Seattle/Tacoma Intl Airport to Portugal were last updated today.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Portugal?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Portugal?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The necessary travel and health documents for your Portugal 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 license 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.


Best airlines flying from Seattle to Portugal

Compare and see reviews for airlines that fly from Seattle to Portugal with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $553Free CancellationRating
7.0
476 reviews
Search Icelandair flights
Aer LingusPriceFrom $606Free CancellationRating
7.0
1,060 reviews
Search Aer Lingus flights
LufthansaPriceFrom $632Free CancellationRating
6.7
6,963 reviews
Search Lufthansa flights
DeltaPriceFrom $636Free CancellationRating
8.0
7,898 reviews
Search Delta flights
American AirlinesPriceFrom $643Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
KLMPriceFrom $649Free CancellationRating
7.8
1,323 reviews
Search KLM flights
Scandinavian AirlinesPriceFrom $652Free CancellationRating
7.3
1,328 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $667Free CancellationRating
6.6
6,715 reviews
Search British Airways flights
United AirlinesPriceFrom $706Free CancellationRating
7.4
8,615 reviews
Search United Airlines flights
Air CanadaPriceFrom $708Free CancellationRating
7.0
9,022 reviews
Search Air Canada flights

Why use momondo?

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

It is quick and easy to find Seattle to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

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

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

How can momondo help me find flights from Seattle to Portugal?

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 Portugal.

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

If you are simply researching potential flights to Portugal, momondo offers a useful price alert feature which will track prices for flights to Portugal from Seattle and alert you when they change.


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Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo