Cheap Flight Deals from Seattle to Barcelona

We've found these cheap flights for you. You can book one-way or return flight tickets.

Return
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Best Time to Book Flights from Seattle to Barcelona

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8
8 15
15 22

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

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

Airlines adjust prices for flights from Seattle to Barcelona based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from Seattle (SEA) to Barcelona (BCN) cost?

According to Trip.com's data, the lowest price is around AU$ 1,651.
How many airports in Barcelona (BCN)?

There are 1 airport(s) in Barcelona (BCN): Barcelona Airport.

How to find a cheap flight from Seattle to Barcelona

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Barcelona. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

Flight Information from Seattle to Barcelona

Cheapest one-way flight price	AU$ 418
Off-season for travel	April
Peak season for travel	June
Flight distance	8,722.43km
Popular airline	Aer Lingus