$470 Cheap Flights from Barcelona (BCN) to Seattle (SEA)

View $470 flight on Sat, May 9, 2026Opens in a new window

Popular airlines from Barcelona El Prat Airport (BCN) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Barcelona to Seattle (BCN-SEA)

Prices were available within the past 7 days and start at $470 for one-way flights and $500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Condor
Thu, May 7 - Wed, May 13
BCN
Barcelona
SEA
Seattle
$500 Roundtrip, found 5 days ago
$500
Roundtrip
found 5 days ago
Select Condor flight, departing Thu, May 7 from Barcelona to Seattle, returning Wed, May 13, priced at $500 found 5 days ago
Icelandair
Fri, Feb 13 - Sun, Feb 22
BCN
Barcelona
SEA
Seattle
$655 Roundtrip, found 5 days ago
$655
Roundtrip
found 5 days ago
Select Icelandair flight, departing Fri, Feb 13 from Barcelona to Seattle, returning Sun, Feb 22, priced at $655 found 5 days ago
Lufthansa
Sun, Mar 29 - Thu, Apr 23
BCN
Barcelona
SEA
Seattle
$741 Roundtrip, found 3 days ago
$741
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Sun, Mar 29 from Barcelona to Seattle, returning Thu, Apr 23, priced at $741 found 3 days ago
Iberia
Mon, Jan 26 - Mon, Feb 9
BCN
Barcelona
SEA
Seattle
$762 Roundtrip, found 7 hours ago
$762
Roundtrip
found 7 hours ago
Select Iberia flight, departing Mon, Jan 26 from Barcelona to Seattle, returning Mon, Feb 9, priced at $762 found 7 hours ago
Swiss International Air Lines
Wed, May 27 - Tue, Jun 2
BCN
Barcelona
SEA
Seattle
$764 Roundtrip, found 5 days ago
$764
Roundtrip
found 5 days ago
Select Swiss International Air Lines flight, departing Wed, May 27 from Barcelona to Seattle, returning Tue, Jun 2, priced at $764 found 5 days ago
British Airways
Mon, Jan 26 - Mon, Feb 9
BCN
Barcelona
SEA
Seattle
$765 Roundtrip, found 7 hours ago
$765
Roundtrip
found 7 hours ago
Select British Airways flight, departing Mon, Jan 26 from Barcelona to Seattle, returning Mon, Feb 9, priced at $765 found 7 hours ago
JetBlue Airways
Thu, Jun 11 - Wed, Jul 22
BCN
Barcelona
SEA
Seattle
$776 Roundtrip, found 5 days ago
$776
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Thu, Jun 11 from Barcelona to Seattle, returning Wed, Jul 22, priced at $776 found 5 days ago
Aer Lingus
Wed, Feb 25 - Wed, Mar 4
BCN
Barcelona
SEA
Seattle
$788 Roundtrip, found 3 days ago
$788
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Wed, Feb 25 from Barcelona to Seattle, returning Wed, Mar 4, priced at $788 found 3 days ago
Air Canada
Mon, Jan 26 - Mon, Feb 9
BCN
Barcelona
SEA
Seattle
$809 Roundtrip, found 7 hours ago
$809
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Mon, Jan 26 from Barcelona to Seattle, returning Mon, Feb 9, priced at $809 found 7 hours ago
Delta
Wed, Feb 11 - Wed, Feb 18
BCN
Barcelona
SEA
Seattle
$811 Roundtrip, found 12 hours ago
$811
Roundtrip
found 12 hours ago
Select Delta flight, departing Wed, Feb 11 from Barcelona to Seattle, returning Wed, Feb 18, priced at $811 found 12 hours ago

Find the cheapest month to fly from Barcelona (BCN) to Seattle (SEA)

June is typically the cheapest month to fly

From $444 - $1,212 per traveler.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $1,225
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $1,225
Flights from Barcelona (BCN) to Seattle (SEA)
Origin airport
Barcelona Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Aer Lingus, Air Canada, Air Europa, Air France, American Airlines, British Airways, Condor, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, WestJet
Roundtrip price
$500
Distance
5423 mi

Barcelona to Seattle Flights

The cheapest times to fly from Barcelona to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Barcelona to Seattle are during the month of May. You can find some of the cheapest flights from Barcelona to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Barcelona to Seattle

Sunday is one of the best days to book for cheap flights from Barcelona to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Barcelona to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Barcelona to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $470 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Barcelona to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Barcelona to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA) cost?
Lock in a cheap one-way flight from $470 or cheap return flight from $500 from Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA)?
May is the most affordable month to fly from BCN to SEA. Planning your trip for the off-season is often the key to better flight prices.
What is the cheapest airline that flies from Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline that'll fly you from BCN to SEA, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA)?
Direct flights from Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BCN to SEA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a range of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid potential delays on the Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA) route, fly before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute fares from BCN to SEA are usually more expensive. To lock in the best rates, start looking for flights ahead of time. That said, if your travel plans are flexible, you may find a cheap fare right before you leave.
Is it cheaper to book a BCN to SEA flight and hotel package?
You can save money by booking a BCN to SEA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After selecting your preferred accommodations and flights, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Barcelona Intl. Airport (BCN) to Seattle - Tacoma Intl. Airport (SEA)?
If you booked your BCN to SEA flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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*Available to One Key members.