£442 Find Cheap Flights from Barcelona to Seattle – Compare and Save

Among airlines operating Barcelona-El Prat Airport to Seattle flights:

• KLM: offers free seat selection
• Delta: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Delta operates flights between Barcelona-El Prat Airport and Seattle.

Flights from Barcelona-El Prat Airport to Seattle usually depart from Barcelona-El Prat (BCN) and arrive at Seattle/Tacoma Intl (SEA).

Here are some options for this route, based on selected ticket types and cabin classes:

• KLM: a cabin bag and a checked bag in Economy class
• Delta: a cabin bag and a checked bag in Economy class
• Air France: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Only Business Class is available on flights from Barcelona-El Prat Airport to Seattle.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £434 return via Boston Logan Intl (BOS), compared with £763 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £45–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Airbus A330-900neo family is used most often on this route, operated mainly by KLM and Delta. Other aircraft seen on the route include Boeing 777 variants.

One-stop flights from Barcelona-El Prat Airport to Seattle most commonly connect through:

• Frankfurt am Main (FRA) – 53% of one-stop connections
• London Heathrow (LHR) – 16% of one-stop connections
• Amsterdam Schiphol (AMS) – 12% of one-stop connections
• Paris Charles de Gaulle (CDG) – 7% of one-stop connections

Frankfurt am Main (FRA) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 18% on the Barcelona-El Prat Airport to Seattle route. Thursday is the cheapest departure day at £614 return on average, while Monday is the most expensive at £741, a difference of £128. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Some of the most popular sights in Seattle are The Westin Seattle, Seattle Center, and Seattle Marriott Waterfront. These are among the most viewed places in Seattle on KAYAK.

These are the earliest and latest flight times available from Barcelona-El Prat Airport to Seattle:

• Earliest: departs at 13:20 and lands at 00:45
• Latest: departs at 13:20 and lands at 00:45.

The flight takes about 11h 25m.

Last-minute fares on this route (booked within 2 weeks of departure) run 46% above the route average of £637. Book 23 weeks before departure for the lowest fares.

A direct flight from Barcelona-El Prat Airport to Seattle takes 11h 25m, covering 5,421 miles.

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.

One-way fares from Barcelona-El Prat Airport to Seattle are currently lower than usual. Average one-way flight prices are about £448, which is 16% below the typical average for this route.

Flying via Paris Charles de Gaulle (CDG) gives the shortest average 1-stop total travel time of 14h 10m, compared to 14h 30m via Amsterdam Schiphol (AMS) and 14h 33m via London Heathrow (LHR).

Seattle is 9 hours behind Barcelona-El Prat Airport (Pacific Time vs Central European Time). Plan for the time shift when scheduling connections or first-day activities.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around £3 for economy cars. Top options include:
• Fox
• Europcar
• Thrifty
• Budget
• Dollar

Return flights from Barcelona-El Prat Airport to Seattle range from £597 to £755, with an average of £637 over the past 12 months. Anything below £597 counts as a good deal.

Two airlines offer in-flight Wi-Fi on Barcelona-El Prat Airport to Seattle flights:

• Delta
• Air France

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.