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£514 Find Cheap Flights from Portsmouth to Seattle – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£657
Multiple Airlines
Mon 5/10Mon 12/10
SOU - SEA • 2 stops
Cheapest one-way flight
£514
British Airways
Mon 28/12
SOU - SEA • 2 stops
Direct flights
Every day
You can fly direct with ANA, Aer Lingus, and others. Average duration is 0
Direct flights
Direct flights
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Direct flights
Direct flights
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Portsmouth to Seattle

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portsmouth to Seattle

Mon, 5 Oct - Mon, 12 Oct
Multiple Airlines Logo
20:00 - 10:35SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
46h 35m2 stops Dublin New York John F Kennedy Intl
Multiple Airlines Logo
19:10 - 19:30SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
16h 20m1 stop Dublin
£657Multiple Airlines
Sat, 3 Oct - Sat, 10 Oct
KLM Logo
17:20 - 16:35SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
31h 15m1 stop Amsterdam Schiphol
KLM Logo
07:45 - 08:45SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
17h 00m2 stops Chicago O'Hare Intl Amsterdam Schiphol
£679KLM
Sat, 3 Oct - Sat, 10 Oct
KLM Logo
17:20 - 16:35SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
31h 15m1 stop Amsterdam Schiphol
KLM Logo
17:45 - 16:50SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
15h 05m1 stop Amsterdam Schiphol
£679KLM
Mon, 5 Oct - Mon, 12 Oct
KLM Logo
09:05 - 16:35SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
15h 30m1 stop Amsterdam Schiphol
KLM Logo
13:45 - 16:50SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
19h 05m1 stop Amsterdam Schiphol
£681KLM
Sat, 3 Oct - Sat, 10 Oct
Delta Logo
09:15 - 22:03SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
20h 48m2 stops Amsterdam Schiphol Boston Logan Intl
Delta Logo
07:45 - 08:45SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
17h 00m2 stops Chicago O'Hare Intl Amsterdam Schiphol
£683Delta
Mon, 5 Oct - Mon, 12 Oct
Delta Logo
09:05 - 20:50SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
19h 45m2 stops Amsterdam Schiphol Vancouver Intl
Delta Logo
10:37 - 16:50SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
22h 13m2 stops Portland Amsterdam Schiphol
£684Delta
Fri, 2 Oct - Fri, 9 Oct
Aer Lingus Logo
09:20 - 17:10SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
15h 50m1 stop Dublin
Aer Lingus Logo
19:10 - 16:50SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
13h 40m1 stop Dublin
£695Aer Lingus
Wed, 16 Sep - Thu, 24 Sep
Delta Logo
17:20 - 11:47SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
26h 27m1 stop Amsterdam Schiphol
Delta Logo
17:45 - 08:45SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
31h 00m1 stop Amsterdam Schiphol
£713Delta
Mon, 14 Sep - Fri, 25 Sep
Delta Logo
17:20 - 11:47SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
26h 27m1 stop Amsterdam Schiphol
Delta Logo
07:15 - 08:45SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
17h 30m2 stops Chicago O'Hare Intl Amsterdam Schiphol
£713Delta
Thu, 10 Sep - Thu, 24 Sep
Delta Logo
09:05 - 16:35SOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
15h 30m1 stop Amsterdam Schiphol
Delta Logo
17:45 - 08:45SEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
31h 00m1 stop Amsterdam Schiphol
£713Delta
Useful Info

Good to know - Cheap tickets from Portsmouth to Seattle

Low season

January

Cheapest flight

£514
Best time to beat the crowds (15% less expensive on average)
Flight from Southampton to Seattle

When to book flights from Portsmouth to Seattle

Are your dates flexible? Find out the best times to travel from Portsmouth to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs for booking flights from Portsmouth to Seattle

  • How does KAYAK find such low prices on flights from Portsmouth to Seattle?

    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 Portsmouth to Seattle.

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Seattle with an airline and back to Portsmouth with another airline.

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

    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 to Seattle from Portsmouth 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 Portsmouth to Seattle

Information on your arrival and departure airports

Seattle (SEA)