SEA

£375 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 30/5. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 26% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£527
British Airways
Wed 4/3Sun 8/3
SOU - SEA • 1 stop
Cheapest one-way flight
£375
Multiple Airlines
Sat 30/5
SOU - SEA • 3 stops
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
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

Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
12:25 - 18:20
SOU
-
SEA
13h 55m1 stop
British Airways Logo
21:05 - 19:40
SEA
-
SOU
15h 35m1 stop
£527British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
12:25 - 18:20
SOU
-
SEA
13h 55m1 stop
British Airways Logo
19:50 - 08:25
SEA
-
SOU
29h 35m2 stops
£548British Airways
Sat, 31 Jan - Sat, 7 Feb
Virgin Atlantic Logo
09:25 - 22:25
SOU
-
SEA
21h 00m2 stops
Virgin Atlantic Logo
21:59 - 17:05
SEA
-
SOU
35h 06m2 stops
£557Virgin Atlantic
Thu, 29 Jan - Thu, 5 Feb
Virgin Atlantic Logo
09:00 - 11:50
SOU
-
SEA
34h 50m1 stop
Virgin Atlantic Logo
21:55 - 08:45
SEA
-
SOU
26h 50m2 stops
£573Virgin Atlantic
Thu, 29 Jan - Thu, 5 Feb
Virgin Atlantic Logo
09:00 - 20:46
SOU
-
SEA
43h 46m2 stops
Virgin Atlantic Logo
06:05 - 08:25
SEA
-
SOU
18h 20m2 stops
£576Virgin Atlantic
Sat, 31 Jan - Sat, 7 Feb
Delta Logo
09:25 - 21:49
SOU
-
SEA
20h 24m2 stops
Delta Logo
15:05 - 17:15
SEA
-
SOU
18h 10m1 stop
£582Delta
Fri, 30 Jan - Fri, 6 Feb
Delta Logo
17:35 - 11:50
SOU
-
SEA
26h 15m1 stop
Delta Logo
07:10 - 08:45
SEA
-
SOU
17h 35m2 stops
£584Delta
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
08:55 - 16:55
SOU
-
SEA
16h 00m2 stops
British Airways Logo
19:50 - 08:25
SEA
-
SOU
29h 35m2 stops
£588British Airways
Fri, 30 Jan - Fri, 6 Feb
Delta Logo
09:00 - 22:25
SOU
-
SEA
21h 25m2 stops
Delta Logo
07:10 - 08:45
SEA
-
SOU
17h 35m2 stops
£588Delta
Wed, 14 Jan - Wed, 21 Jan
Delta Logo
17:35 - 11:50
SOU
-
SEA
26h 15m1 stop
Delta Logo
15:10 - 17:05
SEA
-
SOU
17h 55m1 stop
£592Delta
Useful Info

Good to know - Cheap tickets from Portsmouth to Seattle

Low seasonJanuary
Cheapest flight£375
Best time to beat the crowds (9% 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)