BCN - SEA

$311 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 5/20. 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
$615
Overall average: $924
Condor
Tue 8/18Sun 8/30
BCN - SEA • 1 stop
Cheapest non-stop
$871
Air France
Fri 5/8Sat 5/23
BCN - SEA • Non-stop
Nonstop flights
3 days a week
Wed, Fri, Sun
You can fly direct with Delta. Average duration is 0
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $615 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $777 (round-trip)
Shortest trip • 14h 14m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 9% price drop
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, Aug 18 - Sun, Aug 30
Condor Logo
10:25 am - 3:40 pm
BCN
-
SEA
14h 15m
1 stop
Condor Logo
5:40 pm - 4:00 pm
SEA
-
BCN
13h 20m
1 stop
$615Condor
Fri, May 8 - Sat, May 23
Condor Logo
8:00 am - 4:00 pm
BCN
-
SEA
17h 00m
1 stop
Condor Logo
6:00 pm - 4:05 pm
SEA
-
BCN
13h 05m
1 stop
$616Condor
Tue, Aug 18 - Sun, Aug 30
Condor Logo
10:25 am - 3:40 pm
BCN
-
SEA
14h 15m
1 stop
Condor Logo
5:40 pm - 4:00 pm
SEA
-
BCN
13h 20m
1 stop
$617Condor
Sat, May 2 - Sat, May 9
Condor Logo
10:25 am - 4:00 pm
BCN
-
SEA
14h 35m
1 stop
Condor Logo
6:00 pm - 4:05 pm
SEA
-
BCN
13h 05m
1 stop
$619Condor
Wed, Sep 9 - Fri, Sep 25
Condor Logo
8:00 am - 3:40 pm
BCN
-
SEA
16h 40m
1 stop
Condor Logo
6:00 pm - 4:05 pm
SEA
-
BCN
13h 05m
1 stop
$631Condor
Mon, Apr 20 - Tue, May 5
Multiple Airlines Logo
6:30 am - 10:53 pm
BCN
-
SEA
25h 23m
3 stops
Multiple Airlines Logo
7:00 pm - 11:59 pm
SEA
-
BCN
19h 59m
2 stops
$632Multiple Airlines
Fri, May 8 - Sat, May 23
Condor Logo
5:00 pm - 4:00 pm
BCN
-
SEA
32h 00m
1 stop
Condor Logo
6:00 pm - 10:10 pm
SEA
-
BCN
19h 10m
1 stop
$633Condor
Mon, Aug 17 - Sun, Aug 30
Condor Logo
5:00 pm - 3:40 pm
BCN
-
SEA
31h 40m
1 stop
Condor Logo
5:40 pm - 4:00 pm
SEA
-
BCN
13h 20m
1 stop
$634Condor
Wed, May 27 - 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
$637Condor
Sat, Aug 22 - Sat, Sep 12
Condor Logo
8:00 am - 4:00 pm
BCN
-
SEA
17h 00m
1 stop
Condor Logo
6:15 pm - 10:10 pm
SEA
-
BCN
18h 55m
1 stop
$641Condor
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 April, where tickets cost $800 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,010 and $956 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 3 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$311
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 5% 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 $311 for a one-way ticket and $615 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 airlines offer Wi-Fi service onboard planes from Barcelona to Seattle?

    Only Iberia offers inflight Wi-Fi service on the Barcelona to Seattle flight route.

  • 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 $860 and an overall rating of 7.8.

  • 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.

Prefer to fly direct from Barcelona to Seattle?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Barcelona-El Prat to Seattle/Tacoma Intl.
Find which airlines fly direct from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Barcelona-El Prat to Seattle/Tacoma Intl

Wednesday

Delta

Delta

Friday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Direct returns

Seattle/Tacoma Intl to Barcelona-El Prat

Tuesday

Delta

Delta

Thursday

Delta

Delta

Saturday

Delta

Delta

See more direct flights

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 8289 reviews
7.2Food
7.9Comfort
8.1Boarding
8.5Crew
7.8Entertainment
Airline reviews

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

2.0 MediocreDouglas, Mar 2026
MSP - SEA
Read more Delta reviews

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

No pilots so we were two hours late taking off and then no gate agents when we arrived in Salt Lake.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

It was really nice journey i personally recommend klm flight

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

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!

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

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

We paid for Business Class seats, but system did not have us and they were not available.

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

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.

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

Information on your arrival and departure airports