BCN - SEA

$273 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 5/16. 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

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$589
Overall average: $692
Multiple Airlines
Thu 3/5Sun 3/8
BCN - SEA • 2 stops
Cheapest non-stop
$838
Delta
Fri 5/15Thu 5/28
BCN - SEA • Non-stop
Top airlines
Condor
Cheapest • from $623 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Barcelona and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Copenhagen (CPH)
Cheapest • Avg $423 (round-trip)
London (LHR)
Shortest trip • 14h 13m (one-way)
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 35% 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

Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
6:15 am - 5:00 pm
BCN
-
SEA
19h 45m
2 stops
Multiple Airlines Logo
3:35 pm - 4:20 pm
SEA
-
BCN
16h 45m
2 stops
$589Multiple Airlines
Fri, May 15 - Fri, May 22
Condor Logo
10:15 am - 3:40 pm
BCN
-
SEA
14h 25m
1 stop
Condor Logo
5:40 pm - 10:10 pm
SEA
-
BCN
19h 30m
1 stop
$623Condor
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
7:30 am - 5:55 pm
BCN
-
SEA
19h 25m
2 stops
Multiple Airlines Logo
3:40 pm - 10:50 pm
SEA
-
BCN
22h 10m
2 stops
$628Multiple Airlines
Fri, Aug 21 - Wed, Sep 9
Condor Logo
8:00 am - 4:00 pm
BCN
-
SEA
17h 00m
1 stop
Condor Logo
5:40 pm - 10:10 pm
SEA
-
BCN
19h 30m
1 stop
$651Condor
Mon, Apr 13 - Tue, Jul 28
Multiple Airlines Logo
11:10 pm - 7:25 pm
BCN
-
SEA
29h 15m
2 stops
Multiple Airlines Logo
7:10 pm - 1:10 am
SEA
-
BCN
21h 00m
1 stop
$674Multiple Airlines
Mon, Apr 13 - Tue, Jul 28
Multiple Airlines Logo
11:10 pm - 7:25 pm
BCN
-
SEA
29h 15m
2 stops
Multiple Airlines Logo
7:10 pm - 1:10 am
SEA
-
BCN
21h 00m
1 stop
$680Multiple Airlines
Sun, Apr 5 - Sun, Apr 12
Multiple Airlines Logo
7:50 am - 8:40 pm
BCN
-
SEA
21h 50m
2 stops
Multiple Airlines Logo
3:40 pm - 7:20 pm
SEA
-
BCN
18h 40m
2 stops
$702Multiple Airlines
Fri, May 15 - Thu, May 28
Multiple Airlines Logo
8:00 am - 4:00 pm
BCN
-
SEA
17h 00m
1 stop
Multiple Airlines Logo
10:30 am - 4:05 pm
SEA
-
BCN
20h 35m
2 stops
$706Multiple Airlines
Tue, Jun 16 - Tue, Jun 30
Condor Logo
8:00 am - 3:40 pm
BCN
-
SEA
16h 40m
1 stop
Condor Logo
6:05 pm - 10:10 pm
SEA
-
BCN
19h 05m
1 stop
$708Condor
Wed, Jun 3 - Wed, Jun 3
Condor Logo
10:25 am - 3:40 pm
BCN
-
SEA
14h 15m
1 stop
Condor Logo
5:40 pm - 4:05 pm
SEA
-
BCN
13h 25m
1 stop
$710Condor
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.

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 December, where the average cost of round-trip tickets is $1,017 and $952 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 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$273
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 3% 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 $273 for a one-way ticket and $589 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 KLM?

    The two airlines most popular with KAYAK users for flights from Barcelona to Seattle are Delta and KLM. With an average price for the route of $840 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $851 and an overall rating of 7.7.

  • 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 $828 or less one-way.

Reviews of the top 4 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 8238 reviews
7.2Food
8.1Boarding
7.9Comfort
8.5Crew
7.8Entertainment
Airline reviews

2+hrs delay without any reason provided and a cramped flight

2.0 MediocreYogendra Kumar, Feb 2026
DTW - MDT
Read more Delta reviews

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

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.

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.

Flight was on time, staff are friendly and helpful onboard.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

The service was great. However the lounge only gets passing grade

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

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.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

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

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

Information on your arrival and departure airports