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 6/14. 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
$588
Typical prices: $616-$790
Multiple Airlines
Thu 2/19Mon 2/23
BCN - SEA • 2 stops
Cheapest one-way
$286
Typical prices: $690-$1,052
WestJet
Sun 6/14
BCN - SEA • 1 stop
Top airlines
Condor
Cheapest • from $598 (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 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 20% 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, Feb 19 - Mon, Feb 23
Multiple Airlines Logo
7:25 am - 5:00 pm
BCN
-
SEA
18h 35m
2 stops
Multiple Airlines Logo
2:35 pm - 10:50 pm
SEA
-
BCN
23h 15m
2 stops
$588Multiple Airlines
Tue, May 5 - Sat, May 9
Condor Logo
10:55 am - 3:40 pm
BCN
-
SEA
13h 45m
1 stop
Condor Logo
5:40 pm - 10:10 pm
SEA
-
BCN
19h 30m
1 stop
$598Condor
Mon, Feb 2 - Mon, Feb 16
Finnair Logo
10:40 am - 7:18 pm
BCN
-
SEA
17h 38m
1 stop
Finnair Logo
6:44 am - 8:50 am
SEA
-
BCN
17h 06m
1 stop
$605Finnair
Mon, Feb 2 - Tue, Feb 17
Finnair Logo
10:40 am - 7:18 pm
BCN
-
SEA
17h 38m
1 stop
Finnair Logo
6:44 am - 8:50 am
SEA
-
BCN
17h 06m
1 stop
$610Finnair
Thu, Feb 19 - Mon, Feb 23
Finnair Logo
10:40 am - 7:29 pm
BCN
-
SEA
17h 49m
1 stop
Finnair Logo
6:44 am - 8:50 am
SEA
-
BCN
17h 06m
1 stop
$616Finnair
Thu, Feb 19 - Mon, Feb 23
British Airways Logo
10:40 am - 7:29 pm
BCN
-
SEA
17h 49m
1 stop
British Airways Logo
1:37 pm - 4:05 pm
SEA
-
BCN
17h 28m
2 stops
$632British Airways
Wed, Feb 18 - Wed, Mar 4
British Airways Logo
10:40 am - 9:17 pm
BCN
-
SEA
19h 37m
1 stop
British Airways Logo
1:37 pm - 4:30 pm
SEA
-
BCN
17h 53m
2 stops
$633British Airways
Mon, Feb 9 - Wed, Feb 18
British Airways Logo
10:40 am - 7:18 pm
BCN
-
SEA
17h 38m
1 stop
British Airways Logo
11:45 am - 2:40 pm
SEA
-
BCN
17h 55m
2 stops
$634British Airways
Thu, Mar 5 - Wed, Mar 18
Multiple Airlines Logo
6:10 pm - 10:00 pm
BCN
-
SEA
36h 50m
1 stop
Multiple Airlines Logo
3:10 pm - 9:35 pm
SEA
-
BCN
22h 25m
2 stops
$638Multiple Airlines
Mon, Feb 2 - Mon, Feb 16
American Airlines Logo
11:00 am - 11:42 pm
BCN
-
SEA
21h 42m
1 stop
American Airlines Logo
5:37 am - 8:50 am
SEA
-
BCN
18h 13m
1 stop
$641American 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 February.

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 $682 (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 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 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 $588 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.

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 8057 reviews
8.1Boarding
7.2Food
7.9Comfort
8.5Crew
7.8Entertainment
Airline reviews

It was good because we traveled without luggage, carry on only.

8.0 ExcellentAnonymous, Jan 2026
ATL - EWR
Read more Delta reviews

It was good because we traveled without luggage, carry on only.

We departed late, and we arrived to Atlanta late for our connecting flight to Quito. I asked the flight attendant before landing to please make an announcement and let us go out of the plane first she agreed but never did the announcement. We run and arrived 3 minutes late and they closed the gate of the plane. We ended up staying one day in Atlanta for the next flight to Quito. When we arrived to Quito 2 of our 50lbs bags arrived completely broken and destroyed. I made the complaint and so far nobody in Delta wants to help.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

The entertainment screens were not working and there was no air condition the entire flight. Very uncomfortable.

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

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.

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!

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Patrick and the whole crew were amazing! Hope to have this team for all my European trips.

This review is based on 2 things: 1. The lack of hygiene on the plane. 2. William - the head flight attendant. The lack of cleanliness on the plane upon arrival was appalling. Being given a sanitizing wipe upon boarding of the plane is shocking when you consider the cost of a business class flight. UA expects me to do their job and clean all the bread, food and debris left from previous guests. Does this sound normal to you. The seat, the food table and the sides were full of crumbs, chocolate and dirt. When I told the flight attendant they just gave me more wipes so I could clean it myself. Secondly, William the business cabin head flight attendant was so busy flirting with a couple in the front that his attention to the other guests was minimal. He continuously asked them if they were ok or if they needed anything and it didn’t matter if the rest of us needed anything. And if you are the lead attendant shouldn’t you be checking if the bathrooms in business class are clean and needing toilet paper. There were 2 bathrooms in business. Halfway through the flight the first bathroom was closed and the second bathroom was dirty and had no toilet paper one hour and a half before the flight landed. He needs additional training on prioritizing things. He should care less about flirting and more about his work

Booked seats (paid extra) online and found they didn’t exist on the flight. We were then separated from the rest of our party. Given seats in the very back of the plane. We will not fly Discover or Lufthansa again. We will not book flights or travel through Kayak again!

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.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

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

Information on your arrival and departure airports