£340 Find Cheap Flights from Seattle to Barcelona – Compare and Save

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.

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

• Delta: offers extra legroom; offers free seat selection
• Air France: offers extra legroom; offers free seat selection
• KLM: offers free seat selection

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

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

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

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
• Air France: a cabin bag and a checked bag in Economy class
• KLM: 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 Economy class is available on flights from Seattle to Barcelona-El Prat Airport.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £347 return via Montreal Pierre Elliott Trudeau Intl (YUL), compared with £831 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £56–£75 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.

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

• Frankfurt am Main (FRA) – 45% of one-stop connections
• Reykjavik Keflavik Intl (KEF) – 18% of one-stop connections
• London Heathrow (LHR) – 9% of one-stop connections
• Istanbul (IST) – 8% 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 22% on the Seattle to Barcelona-El Prat Airport route. Wednesday is the cheapest departure day at £537 return on average, while Thursday is the most expensive at £682, a difference of £145. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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, 9% of flights were delayed in the past 3 months, with delays averaging 3 hours 12 minutes.

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

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

• Earliest: departs at 15:20 and lands at 02:00
• Latest: departs at 15:35 and lands at 02:15.

The flight takes about 10h 40m.

Last-minute fares on this route (booked within 2 weeks of departure) run 19% above the route average of £602. Book 11 weeks before departure for the lowest fares.

A direct flight from Seattle to Barcelona-El Prat Airport takes 10h 40m, 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 Seattle to Barcelona-El Prat Airport are currently lower than usual. Average one-way flight prices are about £353, which is 17% below the typical average for this route.

Delta is the only airline operating Seattle to Barcelona-El Prat Airport flights. 91% of its flights are on time.

Afternoon flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Zurich (ZRH) gives the shortest average 1-stop total travel time of 13h 14m, compared to 14h 02m 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.

Barcelona-El Prat Airport (BCN) hosts 5 major car hire companies, with daily rates starting from around £1 for economy cars. Top options include:
• Record go
• NIZACARS
• Goldcar Rental SP
• CLICK RENT
• Ok Mobility

Return flights from Seattle to Barcelona-El Prat Airport range from £488 to £798, with an average of £602 over the past 12 months. Anything below £488 counts as a good deal.

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 programme, while others are paid add-ons priced by flight length.