$305 Find Cheap Flights from Seattle to Barcelona - Compare and Save

Four cabin classes are available on flights from Seattle to Barcelona-El Prat Airport:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from Seattle to Barcelona-El Prat Airport takes 00m, 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.

Round-trip flights from Seattle to Barcelona-El Prat Airport range from $674 to $1,083, with an average of $854 over the past 12 months. Anything below $674 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 15% above the $854 route average. Book 9 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $590 round-trip via Kastrup Copenhagen (CPH), compared to $1,100 for nonstop.

Delta is the only airline operating Seattle to Barcelona-El Prat Airport flights. 92% of its flights are on time.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $75–$100 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 Airbus A330 variants.

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

• Delta
• Air France

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

One-way fares from Seattle to Barcelona-El Prat Airport are currently higher than usual. Average one-way flight prices are about $740, which is 32% above the typical average for this route.

Barcelona-El Prat Airport (BCN) hosts 5 major car rental companies, with daily rates averaging $29 for economy cars. Top options include:

• Record go
• NIZACARS
• Goldcar Rental SP
• CLICK RENT
• DRIVALIA

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

Afternoon flights have the fewest delays on this route.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Seattle to Barcelona-El Prat Airport route, 8% of flights were delayed in the past 3 months, with delays averaging 3h 12m.

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

• Frankfurt am Main (FRA) - 49% of one-stop connections
• Reykjavik Keflavik Intl (KEF) - 16% of one-stop connections
• London Heathrow (LHR) - 8% of one-stop connections
• Istanbul (IST) - 7% of one-stop connections

Yes. Flexible dates can save you up to 18% on flights from Seattle to Barcelona-El Prat Airport. Wednesday is the cheapest departure day at $769 round-trip on average, while Thursday is the most expensive at $931, a difference of $162.

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

Flying via Zurich (ZRH) gives the shortest average 1-stop total travel time at 13h 14m, compared with 14h 01m via Paris Charles de Gaulle (CDG) and 14h 43m via Munich Franz Josef Strauss (MUC).

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

Some of the most popular sights in Barcelona-El Prat Airport are La Rambla, Sagrada Familia and Placa de Catalunya. These are among the most viewed places in Barcelona-El Prat Airport on KAYAK.

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

• Delta: offers extra legroom; offers free seat selection

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

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

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

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

Suppose you are disabled, sick, or have limited mobility. In that case, there are TSA Care professionals who can offer you the special assistance services you’ll require while at SEA, provided you inform them of the services you will require when booking your flight or at least 72h before your flight.

SEA does have a children’s play area between Central Terminal and gates A. At this children’s play area, you can let your kids have fun as you wait for your flight to Barcelona.

If you want to leave some of your luggage at BCN, you’re in luck, as the airport boasts two Left Luggage Offices. One is situated on the 3rd Floor of T1, while the other is on the ground floor of Terminal 2B. At either, you can store some of your baggage for as long as you want.

If you require special in-flight services from SEA to BCN, you should inform the airline you intend to travel with of the services you will need when booking your flight or at least 72h before your flight.