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SEA - BCN

$208 Find cheap flights from Seattle to Barcelona

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Barcelona departing on 10/26. 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
0 bags
Fri 7/12
Fri 7/19

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Barcelona.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Barcelona.
In the last 7 days travelers have searched 44,148,666 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Barcelona (SEA-BCN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Barcelona 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 and deals for you by selecting your travel dates.
Choose your dates
3:35 pm - 1:10 pmSEA-BCN
13h 35m1 stop
11:45 am - 5:00 pmBCN-SEA
14h 15m1 stop
$453Icelandair
Find Deal
Fri, Nov 1 - Fri, Jan 31
8:00 pm - 8:25 pmSEA-BCN
15h 25m1 stop
11:30 am - 6:15 pmBCN-SEA
15h 45m1 stop
$474Aer Lingus
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Wed, Nov 6 - Wed, Nov 13
2:00 pm - 7:45 pmSEA-BCN
20h 45m1 stop
12:15 pm - 11:37 amBCN-SEA
32h 22m2 stops
$536United Airlines
Find Deal
Wed, Nov 6 - Wed, Nov 13
11:52 am - 2:45 pmSEA-BCN
17h 53m2 stops
1:30 pm - 9:43 pmBCN-SEA
17h 13m1 stop
$541British Airways
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Wed, Nov 6 - Wed, Nov 13
6:45 pm - 10:20 pmSEA-BCN
18h 35m1 stop
7:35 pm - 11:25 amBCN-SEA
24h 50m1 stop
$543British Airways
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Mon, Nov 4 - Mon, Nov 11
6:35 am - 4:15 pmSEA-BCN
24h 40m2 stops
2:00 pm - 9:08 pmBCN-SEA
40h 08m2 stops
$580United Airlines
Find Deal
Sun, Nov 24 - Mon, Dec 2
3:10 pm - 2:35 pmSEA-BCN
14h 25m1 stop
7:45 am - 1:20 pmBCN-SEA
14h 35m1 stop
$779Lufthansa
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Sun, Dec 1 - Fri, Jan 3
3:20 pm - 9:45 amSEA-BCN
33h 25m2 stops
7:45 am - 1:20 pmBCN-SEA
14h 35m1 stop
$786Lufthansa
Find Deal
Sun, Dec 1 - Fri, Jan 3
11:35 pm - 9:10 amSEA-BCN
24h 35m1 stop
11:25 am - 11:53 pmBCN-SEA
21h 28m1 stop
$835Delta
Find Deal
Sat, Aug 17 - Fri, Aug 30
6:00 am - 9:00 amSEA-BCN
18h 00m2 stops
1:20 pm - 10:15 amBCN-SEA
29h 55m1 stop
$868Delta
Find Deal
Tue, Jul 30 - Tue, Aug 20

Flights from Seattle to Barcelona - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Seattle to Barcelona?

The average price of all flights from Seattle to Barcelona-El Prat Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Barcelona on a Monday and more expensive on a Friday. On your return trip to Seattle, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Barcelona-El Prat Airport, 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 Seattle to Barcelona-El Prat Airport is November, where tickets cost $585 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,313 and $1,259 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Barcelona-El Prat Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Barcelona-El Prat Airport, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 23 days before departure.

Which airlines provide the cheapest flights from Seattle to Barcelona?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Barcelona from Seattle were found on WestJet ($208) and Aer Lingus ($411), and the lowest round-trip tickets were found on Icelandair ($453) and Aer Lingus ($474).

Good to know

Low season

January

High season

September

Cheapest flight

$208
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Seattle to Barcelona

When to book flights from Seattle to Barcelona

Are your dates flexible? Find out the best times to travel from Seattle to Barcelona 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 Seattle to Barcelona flights

  • Can I get special assistance services at SEA?

    Suppose you are disabled, sick, or have limited mobility. In that case, there are TSA Care professionals who can offer you the special assistance services you’ll require while at SEA, provided you inform them of the services you will require when booking your flight or at least 72h before your flight.

  • Does SEA have a children’s play area?

    SEA does have a children’s play area between Central Terminal and gates A. At this children’s play area, you can let your kids have fun as you wait for your flight to Barcelona.

  • Can I leave some of my luggage at BCN?

    If you want to leave some of your luggage at BCN, you’re in luck, as the airport boasts two Left Luggage Offices. One is situated on the 3rd Floor of T1, while the other is on the ground floor of Terminal 2B. At either, you can store some of your baggage for as long as you want.

  • How can I get special in-flight services when flying from SEA to BCN?

    If you require special in-flight services from SEA to BCN, you should inform the airline you intend to travel with of the services you will need when booking your flight or at least 72h before your flight.

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

    In the last 3 days, the lowest price for a flight from Seattle to Barcelona-El Prat Airport was $208 for a one-way ticket and $453 for a round-trip.

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

    Yes, you’ll need a passport to travel to Barcelona from Seattle.

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Barcelona?

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

  • What is the most popular layover when flying to Barcelona from Seattle?

    London is the most popular layover city among KAYAK users traveling from Seattle to Barcelona.

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

    The two airlines most popular with KAYAK users for flights from Seattle to Barcelona are Delta and KLM. With an average price for the route of $1,076 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $942 and an overall rating of 7.8.

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

    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 Seattle to Barcelona.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Barcelona from Seattle 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 Seattle to Barcelona?

    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 Barcelona with an airline and back to Seattle with another airline. Booking your flights between Seattle and BCN 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 Seattle to Barcelona?

    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 Barcelona from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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

  • On the date you’re scheduled to fly from Seattle-Tacoma International Airport (SEA), you should get to the airport at least 2h ahead of your flight’s departure time. Doing so gives you adequate time to go through the airport’s checkpoints. Severally, travelers have missed their flights at this airport after failing to go through the airport’s security checkpoints in time for their flights. If you reach the airport as early as advised, you’ll be able to avoid finding yourself in a similar position.
  • To travel from downtown Seattle to SEA, you can board a bus, train, or taxi. If you want to travel as quickly as you can from where you are in downtown Seattle to the airport, you should board a taxi, while if you want to travel as cheaply as you can, you should board a bus. On the other hand, if you want to balance speed and transportation costs, it is in your best interest to travel by train.
  • While waiting for your flight to Barcelona at SEA, you should consider visiting The Terminal Gateway Spa. Situated Airside, near Gate A5 on Level 5, this spa offers a full array of spa services. At this highly-rated spa, you’ll enjoy relaxing services without incurring a massive bill, as it provides all its services at competitive rates.
  • If you need any help at Josep Tarradellas Barcelona-El Prat Airport (BCN), you should head to one of the airport’s information desks. In Terminal 1, there are five such desks on the Airside and two on the Landside. On the other hand, in Terminal 2, there are two information desks on the Landside and three on the airside. These desks usually are in service 24/7.
  • In case you want to shower before leaving BCN, you can do so in one of the airport’s Air Rooms. Located on the 1st Floor of Terminal 1, these suites feature free toiletries and clean facilities.
See more tips

Top 5 airlines serving from Seattle to Barcelona

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Barcelona. 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 Seattle to Barcelona? 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.
8.0
DeltaOverall score based on 10000 reviews
7.4Food
8.6Crew
8.0Entertainment
8.2Boarding
7.9Comfort
Airline reviews

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

4.0 OkayDavwinder Singh, Jun 2024SEA - ATL
Read more about Delta reviews

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

Old cabine without flat bed in business for a 12 hour flight is not acceptable

Excellent apart from transport to actual plane 10 minutes from the actual gate , walking out in the tarmac in the rain and having to climb stairs to enter while holding luggage.

Did not find the wheelchair that supposed to assist and went to a long queue for transit security chk which was very slow and boarding desk wanted to close counter although that they knew that I am minutes away because of their mistake of not providing the wheelchair.

Boarding was smooth and on time. The seat was comfortable and the entertainment worked. Staff were gracious.

Good aorcraft 777 but Worst food ever Breakfast was a bû’with matonnaise… Staff was nice but invisible most of the flight

Business class in the second leg - CDG-EVN was a disaster.

Everything went smoothly with Air France. There was a delay in departure which seemed to relate to the immigration services being short staffed.

worst experience ever i choose my seat in advance and also have my seat selected in my boarding and the they told me that my seat has been changed without notify me

No birding was given for next trip on same carrier, food was very moderate.

We transited through Chad and what was supposed to be a 1hr 20 minutes transit time lasted over 4hrs. We didn't get regular updates until we complained. After a 10hr flight from Paris no form of refreshment given and finally arrived Abuja over 6hrs later and none of my bags came

My experience with Icelandair was just ok, nothing special. Requested wheelchair service for my wife and none was offered at checking in Baltimore or available for her upon arrival at Gatwick airport in London.

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The flight left an hour late and no explanation. Food was basically a few snacks out of bags and tiny cup of soda. Crew was pretty friendly.

United delayed the flight to assist customers to make the connection. The Ohara customs area was overwhelm which created an issue for customers trying to make the Little Rock connection. The delayed allow several customers to make the final flight into Little Rock.

Missed our flight to London and we were put on coach seats to Munich.

Terrible. Missed our flight to Newark as well as our flight to London. Complete disaster

They canceled our flight last minute and we had to get another flight with twice the cost

Dinner was excellent - beef stew, the eggs for breakfast were only ok. It was soooo nice that there were so many options for movies and games.

Captain waited 45 minutes for late passengers boarding from Washington DC to Munich which was nice for them but caused our luggage to miss boarding our connection on to Bucharest. We then did not receive our luggage for about 48 hours after landing which was very inconvenient for our travel.

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Quick boarding process, slight delays on the tarmac prior to takeoff and a late arrival due to an emergency on the landing runway. Not the fault of the airline at all! Cabin crew was very friendly and the Captain kept the passengers well informed about what was going on

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Delay, lost vacation time and travel time now more than 24h

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

Book cheap flights from Seattle to Barcelona

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Barcelona found on KAYAK in the last 72 hours.
10/26Sat
1 stopWestJet
21h 25mSEA-BCN
$208
9/30Mon
2 stops
28h 56mSEA-BCN
$242
11/4Mon
1 stopAer Lingus
29h 50mSEA-BCN
$411
11/3Sun
1 stopAer Lingus
29h 50mSEA-BCN
$469
11/5Tue
1 stopUnited Airlines
15h 00mSEA-BCN
$516
10/16Wed
1 stopUnited Airlines
19h 25mSEA-BCN
$520
8/11Sun
1 stopIcelandair
13h 50mSEA-BCN
$566
11/3Sun
2 stopsAmerican Airlines
33h 12mSEA-BCN
$573
10/31Thu
2 stopsAmerican Airlines
26h 22mSEA-BCN
$730
10/4Fri
1 stopIcelandair
13h 50mSEA-BCN
$787

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Last minute flights from Seattle to Barcelona

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Barcelona that are departing in the next 10 days.
6/17Mon
multi-stopAir Canada
13h 45mSEA-BCN
6/26Wed
multi-stopAir Canada
18h 00mBCN-SEA
$961
6/17Mon
multi-stopAmerican Airlines
17h 20mSEA-BCN
6/26Wed
multi-stopAmerican Airlines
19h 55mBCN-SEA
$974
6/17Mon
multi-stopAir Canada
17h 35mSEA-BCN
6/26Wed
multi-stopAir Canada
18h 00mBCN-SEA
$975
6/17Mon
multi-stopAir France
16h 55mSEA-BCN
6/26Wed
multi-stopAir France
16h 45mBCN-SEA
$983
6/17Mon
multi-stopWestJet
41h 50mSEA-BCN
6/26Wed
multi-stopWestJet
14h 56mBCN-SEA
$1,528
6/15Sat
multi-stopWestJet
20h 25mSEA-BCN
7/12Fri
multi-stopWestJet
14h 57mBCN-SEA
$1,549
6/17Mon
multi-stopLufthansa
15h 15mSEA-BCN
7/11Thu
multi-stopLufthansa
14h 25mBCN-SEA
$2,174
6/16Sun
multi-stopLufthansa
15h 03mSEA-BCN
7/13Sat
multi-stopLufthansa
14h 25mBCN-SEA
$2,390
6/15Sat
multi-stopBritish Airways
26h 38mSEA-BCN
7/11Thu
multi-stopBritish Airways
18h 16mBCN-SEA
$2,709
6/17Mon
multi-stopBritish Airways
18h 48mSEA-BCN
7/12Fri
multi-stopBritish Airways
19h 53mBCN-SEA
$3,006

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Seattle - Barcelona Flights

Departure:

Seattle (SEA)United States

Destination:

Barcelona (BCN)Spain

Return flight deals:

Barcelona - Seattle

Cabin classes: