SEA

£553 Find Cheap Flights from Portsmouth to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portsmouth to Seattle departing on 17/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£696
KLM
Tue 5/5Tue 12/5
SOU - SEA • 1 stop
Cheapest one-way flight
£553
British Airways
Sun 17/5
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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+1
Direct flights
Direct flights
+1
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Portsmouth to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portsmouth to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portsmouth to Seattle

Tue, 5 May - Tue, 12 May
KLM Logo
09:05 - 11:42
SOU
-
SEA
34h 37m
1 stop
KLM Logo
13:45 - 16:50
SEA
-
SOU
19h 05m
1 stop
£696KLM
Tue, 5 May - Tue, 12 May
KLM Logo
09:05 - 20:42
SOU
-
SEA
19h 37m
2 stops
KLM Logo
13:45 - 16:50
SEA
-
SOU
19h 05m
1 stop
£703KLM
Tue, 5 May - Tue, 12 May
Virgin Atlantic Logo
09:05 - 20:50
SOU
-
SEA
19h 45m
2 stops
Virgin Atlantic Logo
05:30 - 08:35
SEA
-
SOU
19h 05m
2 stops
£717Virgin Atlantic
Sun, 6 Sep - Sun, 20 Sep
Delta Logo
09:15 - 11:47
SOU
-
SEA
34h 32m
1 stop
Delta Logo
22:00 - 08:35
SEA
-
SOU
26h 35m
2 stops
£746Delta
Sun, 6 Sep - Tue, 22 Sep
Delta Logo
09:15 - 14:45
SOU
-
SEA
37h 30m
2 stops
Delta Logo
23:53 - 08:35
SEA
-
SOU
24h 42m
2 stops
£750Delta
Tue, 5 May - Tue, 12 May
Multiple Airlines Logo
09:20 - 18:30
SOU
-
SEA
41h 10m
3 stops
Multiple Airlines Logo
13:30 - 20:45
SEA
-
SOU
23h 15m
3 stops
£754Multiple Airlines
Mon, 7 Sep - Mon, 21 Sep
British Airways Logo
09:20 - 17:10
SOU
-
SEA
15h 50m
1 stop
British Airways Logo
19:10 - 16:50
SEA
-
SOU
13h 40m
1 stop
£755British Airways
Mon, 7 Sep - Thu, 24 Sep
British Airways Logo
09:20 - 17:10
SOU
-
SEA
15h 50m
1 stop
British Airways Logo
20:20 - 09:45
SEA
-
SOU
29h 25m
2 stops
£764British Airways
Sun, 6 Sep - Mon, 21 Sep
British Airways Logo
20:00 - 17:10
SOU
-
SEA
29h 10m
1 stop
British Airways Logo
19:10 - 19:30
SEA
-
SOU
16h 20m
1 stop
£765British Airways
Tue, 5 May - Tue, 12 May
Multiple Airlines Logo
09:20 - 09:40
SOU
-
SEA
32h 20m
2 stops
Multiple Airlines Logo
13:30 - 20:45
SEA
-
SOU
23h 15m
3 stops
£773Multiple Airlines
Useful Info

Good to know - Cheap tickets from Portsmouth to Seattle

Low seasonJanuary
Cheapest flight£553
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (14% more 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)