Cheap Flights from Seattle to Barcelona from $293

Frequently Asked Questions

• What are the cheapest flights from Seattle to Barcelona (SEA-BCN)?

  Based on Trip.com data, Alaska Airlines offers one-way fares as low as $293 on Cheapest nonstop routes (e.g. SEA to BCN on Thu, Apr 30), while Icelandair offers Cheapest nonstop round-trips from $397 departing on Tue, Apr 14 and returning on Mon, Apr 20.

• Which airlines offer direct flights from Seattle to Barcelona?

  At the moment, you can catch a nonstop flight from Seattle to Barcelona with the following airlines, including: Icelandair Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Seattle to Barcelona?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Barcelona is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Seattle to Barcelona?

  To find best deals on flights from Seattle to Barcelona, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Apr 30, with one-way flights priced at just $293.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Barcelona travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Seattle (SEA) to Barcelona (BCN) the cheapest?

  The cheapest months to fly from Seattle to Barcelona is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Seattle to Barcelona on?

  After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Seattle to Barcelona on March 11, 2026 with United Airlines, with prices starting at $501.

• Which airports can I fly to for Barcelona from Seattle?

  You can land at any one of the following hubs in Barcelona, with Seattle-Tacoma International Airport to Josep Tarradellas Barcelona-El Prat Airport (SEA-BCN) is by far the most common option on this route: Josep Tarradellas Barcelona-El Prat Airport (BCN).

• Is there any time difference between Seattle and Barcelona?

  The time difference between Barcelona and Seattle is 9h.

• How do I change or cancel my ticket from Seattle to Barcelona?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.