BCN - SEA

$286 Find Cheap Flights from Barcelona to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Barcelona to Seattle departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Barcelona to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Barcelona to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$517
Typical prices: $648-$755
Multiple Airlines
Tue 3/3Tue 3/10
BCN - SEA • 2 stops
Cheapest non-stop
$840
KLM
Sun 5/10Tue 5/26
BCN - SEA • Non-stop
Top airlines
Condor
Cheapest • from $590 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 19% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Barcelona to Seattle (BCN-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Barcelona to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Barcelona to Seattle

Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
7:40 am - 5:00 pm
BCN
-
SEA
18h 20m
2 stops
Multiple Airlines Logo
3:35 pm - 12:10 am
SEA
-
BCN
24h 35m
2 stops
$517Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
7:40 am - 5:00 pm
BCN
-
SEA
18h 20m
2 stops
Multiple Airlines Logo
3:35 pm - 12:10 am
SEA
-
BCN
24h 35m
2 stops
$525Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
7:30 am - 6:00 pm
BCN
-
SEA
18h 30m
2 stops
Multiple Airlines Logo
3:35 pm - 12:10 am
SEA
-
BCN
24h 35m
2 stops
$534Multiple Airlines
Mon, Apr 20 - Wed, Apr 29
Multiple Airlines Logo
10:55 am - 8:40 pm
BCN
-
SEA
18h 45m
2 stops
Multiple Airlines Logo
3:40 pm - 5:45 pm
SEA
-
BCN
17h 05m
2 stops
$552Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
7:40 am - 5:00 pm
BCN
-
SEA
18h 20m
2 stops
Multiple Airlines Logo
3:35 pm - 6:55 pm
SEA
-
BCN
19h 20m
2 stops
$576Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
7:40 am - 5:00 pm
BCN
-
SEA
18h 20m
2 stops
Multiple Airlines Logo
3:35 pm - 6:55 pm
SEA
-
BCN
19h 20m
2 stops
$578Multiple Airlines
Mon, May 11 - Wed, May 27
Condor Logo
8:00 am - 3:40 pm
BCN
-
SEA
16h 40m
1 stop
Condor Logo
5:40 pm - 10:10 pm
SEA
-
BCN
19h 30m
1 stop
$590Condor
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
8:30 pm - 6:00 pm
BCN
-
SEA
29h 30m
3 stops
Multiple Airlines Logo
3:35 pm - 12:10 am
SEA
-
BCN
24h 35m
2 stops
$600Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
5:45 am - 10:57 pm
BCN
-
SEA
26h 12m
3 stops
Multiple Airlines Logo
3:35 pm - 6:40 pm
SEA
-
BCN
19h 05m
2 stops
$616Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
5:45 am - 5:00 pm
BCN
-
SEA
20h 15m
2 stops
Multiple Airlines Logo
3:35 pm - 7:50 pm
SEA
-
BCN
20h 15m
3 stops
$627Multiple Airlines
Booking Insights

KAYAK's insights & trends for Barcelona to Seattle flights

Get data-powered insights and trends into flights from Barcelona to Seattle to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Barcelona-El Prat Airport to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Barcelona-El Prat Airport to Seattle departing in March.

What is the cheapest month to fly from Barcelona-El Prat Airport to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Barcelona-El Prat Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Barcelona-El Prat Airport to Seattle is March, where tickets cost $692 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $978 and $964 respectively.

How far in advance should I book a flight from Barcelona-El Prat Airport to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Barcelona-El Prat Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Barcelona-El Prat Airport to Seattle, you should book around 2 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$286
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Barcelona to Seattle

When to book flights from Barcelona to Seattle

Are your dates flexible? Find out the best times to travel from Barcelona to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Barcelona to Seattle flights

  • What is the cheapest flight from Barcelona-El Prat Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Barcelona-El Prat Airport to Seattle was $286 for a one-way ticket and $517 for a round-trip.

  • Do I need a passport to fly between Barcelona and Seattle?

    A passport is required to fly from Barcelona to Seattle.

  • Which airports will I be using when flying from Barcelona to Seattle?

    Barcelona airport is called Barcelona-El Prat and the only airport in Seattle is Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Barcelona to Seattle?

    The Airbus A330-900neo is the aircraft model that flies most regularly on the Barcelona to Seattle flight route.

  • Which airline alliances offer flights from Barcelona to Seattle?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Barcelona and Seattle, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Barcelona to Seattle, Delta or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Barcelona to Seattle are Delta and Lufthansa. With an average price for the route of $840 and an overall rating of 7.9, Delta is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $806 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Barcelona to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Barcelona to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Barcelona to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Barcelona is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Barcelona to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Barcelona with another airline. Booking your flights between Barcelona and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Barcelona to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Barcelona up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Barcelona-El Prat Airport to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $822 or less one-way.

Reviews of the top 3 airlines serving from Barcelona to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Barcelona to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Barcelona to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8162 reviews
8.5Crew
7.2Food
7.9Comfort
8.1Boarding
7.8Entertainment
Airline reviews

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

2.0 MediocreKeenan, Feb 2026
GEG - SEA
Read more Delta reviews

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

I went to washroom twice and once there was no toilet seat cover and the other no toilet paper at all. I don't think it was ever replenished or checked before we boarded as it was very early on in the flight.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Not great - seats were very narrow and food was terrible.

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

The flight crew was kind, flexible, and accommodating. The seats on the plane were extremely uncomfortable.

Check-in experience, for business call please provide a premium experience

I don’t think you’ll like the shoulder require people to pay to reserve seats. Also for the people in the bulkhead row the luggage locker nearest to their seats should be vacant. Both sides were filled with crew or airport items.

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Everything you need to know for your flight from Barcelona to Seattle

Information on your arrival and departure airports