$604 Cheap Air France flights Seattle (SEA) to Southampton (SOU)

View $604 flight on Mon, Mar 9, 2026Opens in a new window

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$604 Cheap Air France flights Seattle (SEA) to Southampton (SOU)

Prices were available within the past 7 days and start at $604 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Seattle (SEA) to Southampton (SOU)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Southampton
Airlines serving
Aer Lingus, British Airways, Delta, KLM, Virgin Atlantic
Popular airline
Aer Lingus
Distance
4789 mi

Frequently asked questions

How much is an Air France flight from Seattle - Tacoma Intl. Airport (SEA) to Southampton Airport (SOU)?
You'll discover budget-friendly return Air France flights from SEA to SOU by sorting your results from "Price (lowest to highest)" on Expedia. Or look for deals from $604 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to SOU with Air France?
Air France flights to Southampton are generally more affordable in the low-season months of January and February. Whether you're searching for a round-trip or one-way ticket, you could find a better deal then.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Southampton Airport (SOU) with Air France?
Snagging the best Air France deals from SEA to SOU often comes down to timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, you can pocket 17% on average by buying your tickets on a Sunday compared to a Friday, which is often the most expensive day to book.* It's a good idea to start searching for flights about one month before you plan to travel.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Air France fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Southampton Airport (SOU)?
Use the "Nonstop" filter when looking for direct Air France flights from SEA to SOU. It's also a good way to compare other airlines offering the same nonstop trip.
What is the earliest Air France flight from SEA to SOU?
To find the earliest departure from SEA to SOU with Air France, filter your results by "Morning" and "Early Morning." Booking an early flight generally means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Air France fly into in Southampton?
Take an Air France flight from Seattle - Tacoma Intl. Airport (SEA) to Southampton, and you'll likely come in to Southampton Airport (SOU). This is the airline's main hub in this city.
What kind of luggage can I take on an Air France flight from Seattle - Tacoma Intl. Airport (SEA) to Southampton Airport (SOU)?
On Air France, you can fly standard economy from SEA to SOU with a small personal item and 1 cabin bag. Your carry-on bag should be no larger than 21 inches x 13 inches x 9 inches and weigh less than 26 lb. Going over baggage limits could result in additional fees, so check your carrier's current guidelines before completing your booking.
Why fly with Air France from SEA to SOU?
Air France makes traveling from SEA to SOU enjoyable with a 4-star airline rating and a rewarding loyalty program. You even have the chance to collect points with Air France Flying Blue. Don't forget to join Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Air France flight from Seattle - Tacoma Intl. Airport (SEA) to Southampton Airport (SOU)?
Changes are usually free within 24 hours of making your booking, but your airline may add a charge after that time. For more details about modifying your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you want the freedom to make changes without additional costs, apply the "No cancel fee" or "Changes included" filter when organizing your next escape.

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