SOU - SEA

$673 Find Cheap Flights from Southampton to Seattle - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,057
Typical prices: $1,086-$1,367
Aer Lingus
Sat 12/8Sat 12/15
SOU - SEA • 2 stops
Cheapest one-way
$673
Typical prices: $656-$786
British Airways
Sat 4/28
SOU - SEA • 1 stop
Top layover airports
Cheapest • Avg $682 (round-trip)
Shortest trip • 14h 57m (one-way)
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Cheap Flights from Southampton to Seattle (SOU-SEA)

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

Recent round-trip flight deals from Southampton to Seattle

Tue, Dec 8 - Tue, Dec 15
Aer Lingus Logo
9:20 am - 12:47 amSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
23h 27m2 stops Dublin Chicago O'Hare Intl
Aer Lingus Logo
6:20 am - 8:50 amSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
18h 30m2 stops Chicago O'Hare Intl Dublin
$1,057Aer Lingus
Tue, Dec 8 - Tue, Dec 15
Multiple Airlines Logo
9:20 am - 12:47 amSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
23h 27m2 stops Dublin Chicago O'Hare Intl
Multiple Airlines Logo
11:35 am - 7:30 pmSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
23h 55m2 stops Chicago O'Hare Intl Dublin
$1,057Multiple Airlines
Tue, Dec 8 - Tue, Dec 15
Multiple Airlines Logo
5:35 pm - 11:50 amSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
26h 15m1 stop Amsterdam Schiphol
Multiple Airlines Logo
8:25 am - 8:10 amSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
15h 45m2 stops Minneapolis St Paul Amsterdam Schiphol
$1,068Multiple Airlines
Tue, Dec 8 - Tue, Dec 15
Multiple Airlines Logo
8:40 am - 11:50 amSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
35h 10m1 stop Amsterdam Schiphol
Multiple Airlines Logo
2:35 pm - 5:05 pmSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
18h 30m1 stop Amsterdam Schiphol
$1,068Multiple Airlines
Wed, Feb 17 - Sun, Feb 21
British Airways Logo
9:00 am - 11:25 amSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
34h 25m2 stops Edinburgh Turnhouse London Heathrow
British Airways Logo
6:45 pm - 8:20 amSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
29h 35m2 stops London Heathrow Edinburgh Turnhouse
$1,172British Airways
Wed, Feb 17 - Sun, Feb 21
British Airways Logo
9:00 am - 11:25 amSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
34h 25m2 stops Edinburgh Turnhouse London Heathrow
British Airways Logo
6:45 pm - 8:20 amSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
29h 35m2 stops London Heathrow Edinburgh Turnhouse
$1,174British Airways
Wed, Feb 17 - Sun, Feb 21
British Airways Logo
9:00 am - 11:25 amSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
34h 25m2 stops Edinburgh Turnhouse London Heathrow
British Airways Logo
6:45 pm - 8:20 amSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
29h 35m2 stops London Heathrow Edinburgh Turnhouse
$1,179British Airways
Wed, Feb 17 - Sun, Feb 21
British Airways Logo
9:00 am - 11:25 amSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
34h 25m2 stops Edinburgh Turnhouse London Heathrow
British Airways Logo
6:45 pm - 8:20 amSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
29h 35m2 stops London Heathrow Edinburgh Turnhouse
$1,187British Airways
Sat, Dec 26 - Sat, Jan 2
Multiple Airlines Logo
5:20 pm - 11:50 amSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
26h 30m1 stop Amsterdam Schiphol
Multiple Airlines Logo
6:00 am - 8:55 amSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
18h 55m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol
$1,189Multiple Airlines
Fri, Mar 26 - Sat, Apr 3
British Airways Logo
7:45 pm - 5:50 pmSOU  Southampton Eastleigh-SEA Seattle/Tacoma Intl
29h 05m2 stops Edinburgh Turnhouse London Heathrow
British Airways Logo
8:20 pm - 8:25 amSEA  Seattle/Tacoma Intl-SOU Southampton Eastleigh
28h 05m2 stops London Heathrow Edinburgh Turnhouse
$1,273British Airways
Booking Insights

Price, demand and travel trends for Southampton to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Southampton to Seattle?

Round-trip flights from Southampton to Seattle typically range from $1,086 to $1,367. The lowest price found in the past 5 days was $1,057, on Aer Lingus.

Key details for Southampton to Seattle flights

Cheapest flight

$673
One-way flight from Southampton to Seattle

When to book flights from Southampton to Seattle

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

Your Southampton to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Southampton to Seattle?

    Only Economy Class is available on flights from Southampton to Seattle.

  • How long is a flight from Southampton to Seattle?

    There are currently no nonstop flights available from Southampton to Seattle. Flights with 1 layover take between 14h 57m and 16h 16m in total, depending on the connection.

  • Do I need a passport to fly from Southampton to Seattle?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Southampton to Seattle looking right now?

    One-way fares from Southampton to Seattle are currently in line with typical prices for this route. Average one-way fares are about $694.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging $61 for economy cars. Top options include:

    • Europcar
    • Fox
    • Thrifty
    • Budget
    • Dollar

  • Which airports can I use when flying from Southampton to Seattle?

    Flights from Southampton to Seattle usually depart from Southampton Eastleigh (SOU) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Southampton to Seattle pass through?

    Connecting flights from Southampton to Seattle most commonly pass through:

    • Amsterdam Schiphol (AMS) - 67% of one-stop connections
    • Dublin (DUB) - 33% of one-stop connections

  • Can I save money by using flexible dates for flights from Southampton to Seattle?

    Yes. Flexible dates can save you up to 47% on flights from Southampton to Seattle. Monday is the cheapest departure day at $682 round-trip on average, while Wednesday is the most expensive at $1,270, a difference of $588.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Southampton to Seattle?

    Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time at 14h 57m, compared with 16h 16m via Dublin (DUB).

  • What is the time difference between Southampton and Seattle?

    Seattle is 8 hours behind Southampton (Pacific Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Southampton to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Southampton to Seattle

Complete your trip to Seattle with a hotel stay or car rental