$437 Cheap Flights from Seattle (SEA) to Barcelona (BCN)

View $437 flight on Sun, Oct 4, 2026Opens in a new window

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

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Cheap Flights from Seattle to Barcelona (SEA-BCN)

Prices were available within the past 7 days and start at $437 for one-way flights and $590 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Condor
Tue, Oct 20 - Sat, Oct 24
SEA
Seattle
BCN
Barcelona
$590 Roundtrip, found 1 day ago
$590
Roundtrip
found 1 day ago
Select Condor flight, departing Tue, Oct 20 from Seattle to Barcelona, returning Sat, Oct 24, priced at $590 found 1 day ago
Scandinavian Airlines
Sat, Aug 29 - Fri, Sep 4
SEA
Seattle
BCN
Barcelona
$661 Roundtrip, just found
$661
Roundtrip
just found
Select Scandinavian Airlines flight, departing Sat, Aug 29 from Seattle to Barcelona, returning Fri, Sep 4, priced at $661 just found
Turkish Airlines
Wed, Sep 9 - Wed, Sep 16
SEA
Seattle
BCN
Barcelona
$894 Roundtrip, found 4 days ago
$894
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Wed, Sep 9 from Seattle to Barcelona, returning Wed, Sep 16, priced at $894 found 4 days ago
Icelandair
Mon, Oct 5 - Fri, Oct 23
SEA
Seattle
BCN
Barcelona
$905 Roundtrip, found 4 hours ago
$905
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Mon, Oct 5 from Seattle to Barcelona, returning Fri, Oct 23, priced at $905 found 4 hours ago
JetBlue Airways
Mon, Sep 28 - Wed, Oct 7
SEA
Seattle
BCN
Barcelona
$931 Roundtrip, just found
$931
Roundtrip
just found
Select JetBlue Airways flight, departing Mon, Sep 28 from Seattle to Barcelona, returning Wed, Oct 7, priced at $931 just found
Delta
Tue, Sep 1 - Wed, Sep 30
SEA
Seattle
BCN
Barcelona
$961 Roundtrip, found 1 hour ago
$961
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Sep 1 from Seattle to Barcelona, returning Wed, Sep 30, priced at $961 found 1 hour ago
Finnair
Mon, Sep 7 - Fri, Sep 25
SEA
Seattle
BCN
Barcelona
$962 Roundtrip, found 1 day ago
$962
Roundtrip
found 1 day ago
Select Finnair flight, departing Mon, Sep 7 from Seattle to Barcelona, returning Fri, Sep 25, priced at $962 found 1 day ago
Iberia
Wed, Oct 7 - Thu, Oct 22
SEA
Seattle
BCN
Barcelona
$968 Roundtrip, found 20 hours ago
$968
Roundtrip
found 20 hours ago
Select Iberia flight, departing Wed, Oct 7 from Seattle to Barcelona, returning Thu, Oct 22, priced at $968 found 20 hours ago
American Airlines
Sun, Sep 6 - Wed, Sep 16
SEA
Seattle
BCN
Barcelona
$968 Roundtrip, found 21 hours ago
$968
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Sun, Sep 6 from Seattle to Barcelona, returning Wed, Sep 16, priced at $968 found 21 hours ago
Air Canada
Wed, Oct 28 - Wed, Nov 11
SEA
Seattle
BCN
Barcelona
$968 Roundtrip, found 1 day ago
$968
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Oct 28 from Seattle to Barcelona, returning Wed, Nov 11, priced at $968 found 1 day ago

Alternative airports near Barcelona

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

Select flight to Barcelona Intl. BCN. Cheapest and Closest option available. Average driving time to city center is 18 minutes. Flights from $1,030
BCN
Barcelona Intl.
CheapestClosest
Average driving time to city center18 min
Flights from $1,030

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) cost?
You can find cheap one-way flights and cheap return flights from $590 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) with Expedia. One-way flights generally range between $423 and $4102, and roundtrip flights usually range from $794 to $6112. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
October is the cheapest month to fly from Seattle, WA (SEA) to Barcelona (BCN), with average return fares around $796. This is about 20% lower than the average price throughout the year, as travel demand typically decreases after the summer peak. Other cheap months to fly from SEA to BCN include February and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
Delta offers around 7 weekly direct flights from SEA to BCN.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
KLM is one of the cheapest airlines offering nonstop flights from Seattle - Tacoma Intl. (SEA) to Barcelona Intl. (BCN), with round-trip tickets starting from around $1,219. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
The best airline to fly with from Seattle, WA (SEA) to Barcelona (BCN) will differ from traveler to traveler. If you like to fly early, Delta offers early morning flights. If price is the most important factor, Delta typically offers the lowest fares. Delta offers the most daily flights from SEA to BCN, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
For flights from Seattle, WA (SEA) to Barcelona (BCN), the best months to travel are October and September. October is particularly appealing with an average price of about $796, while September is popular for its warm weather and vibrant atmosphere. Both months provide a good mix of reasonable fares and enjoyable travel conditions.*Prices based on flights available on Expedia in the last year.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
You can find approximately 1 nonstop flights per day from Seattle - Tacoma Intl. (SEA) to Barcelona Intl. (BCN). For more options, look at flights that include layovers.
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
The earliest flight from Seattle, WA (SEA) to Barcelona (BCN) typically departs at around 12:05 AM, operated by American Airlines. This seasonal service is available in April, making it a good option for spring travel. An early flight can help you maximize your time in Barcelona. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
The most popular departure times for flights from Seattle, WA (SEA) to Barcelona (BCN) are from 12pm to 3pm. About 26% of passengers prefer this time window. Many major carriers, including British Airways and Lufthansa, offer flights during this window. This timing is popular as it allows you to enjoy a leisurely morning before heading to the airport.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
Direct flights from SEA to BCN usually take about 10 hours 30 minutes, traveling roughly 5,424 miles. If you opt for a connecting flight, expect to add around 5 hours 50 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
Business class is available on flights from SEA to BCN. Airlines that offer business class service on this route include:

  • Delta Air Lines
  • British Airways
  • American Airlines
  • Lufthansa
  • Turkish Airlines
  • United Airlines
  • Air France
  • Icelandair
  • Air Canada
  • Condor

First class is available with United Airlines.
How much is a business class flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
A direct, return business class ticket from Seattle (SEA) to Barcelona (BCN) typically costs between $7,523 - $14,048. A non-stop, one-way business class flight is usually around $1,108 - $3,671. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Barcelona from Seattle - Tacoma Intl. (SEA)?
If you're planning to travel to Barcelona from Seattle - Tacoma Intl. (SEA), you can fly into Barcelona Intl. (BCN) Some flights may connect through major hubs like O'Hare Intl. (ORD), Vancouver Intl. (YVR), Dallas-Fort Worth Intl. (DFW) before reaching Barcelona. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) Barcelona Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Barcelona (BCN-Barcelona Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Barcelona Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Condor, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, WestJet
Roundtrip price
$590
Distance
5423 mi
Average flight time
10 hours 45 mins

Book with confidence

Seattle to Barcelona Flights

The cheapest times to fly from Seattle to Barcelona

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 Seattle to Barcelona are during the month of October. You can find some of the cheapest flights from Seattle to Barcelona with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Barcelona

Sunday is one of the best days to book for cheap flights from Seattle to Barcelona: 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 Seattle to Barcelona

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 Seattle to Barcelona in 2026. You can also book with separate airlines for your outbound and return journeys, from $437 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 Seattle to Barcelona 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 Seattle to Barcelona 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.

 

Seattle to Barcelona Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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