$468 Cheap British Airways flights Seattle (SEA) to Barcelona (BCN)

View $468 flight on Tue, Oct 21, 2025Opens in a new window

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$468 Cheap British Airways flights Seattle (SEA) to Barcelona (BCN)

Prices were available within the past 7 days and start at $468 for one-way flights and $582 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Sep 23 - Wed, Oct 1
SEA
Seattle
BCN
Barcelona
$582 Roundtrip, found 3 days ago
$582
Roundtrip
found 3 days ago
Select British Airways flight, departing Tue, Sep 23 from Seattle to Barcelona, returning Wed, Oct 1, priced at $582 found 3 days ago
Flights from Seattle (SEA) to Barcelona (BCN)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Barcelona Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, Alaska Airlines, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
Lufthansa
Distance
5423 mi

Frequently asked questions

How much is a British Airways flight from Seattle - Tacoma Intl. Airport (SEA) to Barcelona Intl. Airport (BCN)?
You can find affordable round-trip British Airways flights from $582 from SEA to BCN by organizing your results from "Price (lowest to highest)" on Expedia. Or search for deals from $468 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 BCN with British Airways?
Search for one-way or return flights to Barcelona in January or February. You could find cheaper fares with British Airways during these quieter months.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Barcelona Intl. Airport (BCN) with British Airways?
Snagging the best British Airways deals from SEA to BCN often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better still, you can pocket 17% on average by buying your fare on a Sunday compared to a Friday, which is usually the most expensive day to book.* It's a good idea to start searching for flights about one month before your travel dates.*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 British Airways fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Barcelona Intl. Airport (BCN)?
To see if there's a direct journey from SEA to BCN with British Airways or other carriers, select the "Nonstop" filter when looking for flights.
What is the earliest British Airways flight from SEA to BCN?
To find the earliest departure from SEA to BCN with British Airways, filter your results by "Early Morning" and "Morning." Booking an early flight usually means cancellations are less likely.**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 British Airways fly into in Barcelona?
Barcelona Intl. Airport (BCN) is the primary Barcelona hub for British Airways flights from Seattle - Tacoma Intl. Airport (SEA).
What kind of luggage can I take on a British Airways flight from Seattle - Tacoma Intl. Airport (SEA) to Barcelona Intl. Airport (BCN)?
On a standard economy flight with British Airways from SEA to BCN, passengers can bring 1 checked-in bag up to 50 lb with dimensions no larger than 29 inches x 15 inches x 16 inches in total. For hand luggage, you're allowed 2 cabin bags weighing up to 50 lb and measuring less than 19 inches x 9 inches x 17 inches. Size and weight restrictions can differ depending on the cabin class you're in and airfare type. To make sure you don't get caught with extra charges at the airport, double-check your British Airways booking or visit the airline's website before packing your bags.
Why fly with British Airways from SEA to BCN?
British Airways makes traveling from SEA to BCN more enjoyable with top-tier customer service and a 4-star airline rating. You could even start earning points with British Airways Executive Club. Don't forget to join Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*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 British Airways flight from Seattle - Tacoma Intl. Airport (SEA) to Barcelona Intl. Airport (BCN)?
In most cases, you can modify or cancel your flight, although additional fees may apply if you made your booking over 24 hours ago. Prefer to keep your options open? Make use of Expedia's "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you need to adjust your plans. To modify your itinerary, head to "Trips," select your flight and click on "Manage Booking" for more information.

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