Barcelona

$213+ Cheap flights from Seattle (SEA) to Barcelona

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
Jul 9 — Jul 161
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Barcelona are usually found in January or February, booked 74 days in advance, depart on a Friday or Monday and return on a Monday

Cheap flight deals from Seattle to Barcelona

Cheapest flights from Seattle to Barcelona
Explore the most affordable flight options available from Seattle to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.

This FlightHub deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:40 pm
SEA
-
BCN
2 stops39h 30m
Scandinavian Airlines
Thu 9/247:00 pm
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 6/7$741
This Mytrip deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:40 pm
SEA
-
BCN
3 stops35h 45m
Multiple Airlines
Wed 8/267:50 am
BCN
-
SEA
2 stops21h 50m
Multiple Airlines
Deal found 6/7$743
This Icelandair deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:40 pm
SEA
-
BCN
1 stop15h 45m
Icelandair
Mon 8/243:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 6/4$744
This Cheapflightsfares deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:15 am
SEA
-
BCN
1 stop14h 55m
British Airways
Tue 8/2510:45 am
BCN
-
SEA
1 stop17h 02m
British Airways
Deal found 6/5$745
This Scandinavian Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:55 pm
SEA
-
BCN
2 stops32h 50m
Scandinavian Airlines
Sat 9/127:00 pm
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 6/8$748
This Scandinavian Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:55 pm
SEA
-
BCN
1 stop17h 15m
Scandinavian Airlines
Thu 9/312:50 pm
BCN
-
SEA
2 stops33h 55m
Scandinavian Airlines
Deal found 6/4$749
This Cheapflightsfares deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:40 pm
SEA
-
BCN
1 stop19h 30m
Condor
Tue 8/2510:25 am
BCN
-
SEA
1 stop14h 15m
Condor
Deal found 6/8$750
This CheapOair deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:14 am
SEA
-
BCN
2 stops26h 56m
Multiple Airlines
Tue 10/2710:15 am
BCN
-
SEA
1 stop14h 20m
Multiple Airlines
Deal found 6/8$751
This FlightHub deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:20 am
SEA
-
BCN
2 stops25h 50m
Scandinavian Airlines
Wed 9/237:00 pm
BCN
-
SEA
2 stops37h 10m
Scandinavian Airlines
Deal found 6/8$752
This Condor deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:10 pm
SEA
-
BCN
1 stop19h 00m
Condor
Sun 10/185:00 pm
BCN
-
SEA
1 stop32h 10m
Condor
Deal found 6/5$753
This Booking.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:10 pm
SEA
-
BCN
1 stop19h 00m
Multiple Airlines
Mon 8/318:00 am
BCN
-
SEA
2 stops19h 51m
Multiple Airlines
Deal found 6/8$754

Find flight deals from Seattle to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 9, 2026.

Round-trip from

$740
(Condor)

One-way from

$213
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,187
From Seattle/Tacoma Intl to Barcelona
One-way flight from Seattle/Tacoma Intl to Barcelona
Highest demand for flights based on searches. 21% potential increase in price ($207 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Barcelona that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
Use the filters below to find and compare flights from Seattle to Barcelona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 9/6

5:40 pm-4:00 pm

1 stop13h 20m

Barcelona-El Prat

Wed 9/16

10:25 am-3:40 pm

1 stop14h 15m

$770

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 9/13

2:54 pm-10:10 pm

2 stops22h 16m

Barcelona-El Prat

Tue 9/22

8:00 am-3:40 pm

1 stop16h 40m

$810

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 9/13

5:40 pm-4:00 pm

1 stop13h 20m

Barcelona-El Prat

Fri 10/23

10:15 am-4:00 pm

1 stop14h 45m

$834

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 9/16

5:40 pm-4:05 pm

1 stop13h 25m

Barcelona-El Prat

Sat 10/24

10:25 am-4:00 pm

1 stop14h 35m

$834

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 10/6

8:06 pm-10:10 pm

2 stops41h 04m

Barcelona-El Prat

Sun 10/18

5:00 pm-4:10 pm

1 stop32h 10m

$884

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 7/9

6:05 pm-10:10 pm

1 stop19h 05m

Barcelona-El Prat

Tue 7/21

8:00 am-9:34 pm

2 stops22h 34m

$900

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 10/9

8:06 pm-10:10 pm

2 stops41h 04m

Barcelona-El Prat

Sun 10/18

5:00 pm-4:10 pm

1 stop32h 10m

$922

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 7/20

6:35 pm-5:10 pm

1 stop13h 35m

Barcelona-El Prat

Fri 7/31

1:20 pm-3:35 pm

Nonstop11h 15m

$965

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 9/15

3:35 pm-11:10 am

Nonstop10h 35m

Barcelona-El Prat

Thu 9/24

6:20 am-11:47 am

1 stop14h 27m

$966

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 8/4

3:35 pm-11:10 am

Nonstop10h 35m

Barcelona-El Prat

Tue 8/18

11:00 am-7:05 pm

1 stop17h 05m

$966

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Seattle to Barcelona?

Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona (average of $351). Flying from Seattle to Barcelona in June is currently the most expensive (average of $653). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to BCN?

Find hourly flight availability from Seattle to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 9, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Barcelona as you normally would.

How much does it cost to fly round-trip from Seattle to Barcelona?

How often are flights from Seattle to Barcelona delayed?

About 25% of weekly flights between Seattle and Barcelona have experienced delays in the past year, with the average delay time being 153 minutes.

What is the most punctual flight time for Seattle to Barcelona flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

How far ahead should I book a flight from Seattle to Barcelona?

To ensure you get the cheapest price possible for a flight from Seattle to Barcelona, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona. Reviews last updated June 9, 2026.
Read through reviews of airlines operating flights from Seattle to Barcelona, such as Delta,Icelandair, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Seattle to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Seattle to Barcelona?

    For a flight from Seattle to Barcelona, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 1 outbound flight to Barcelona per day. 14 airlines have flights to Barcelona from Seattle/Tacoma Intl on a regular basis.

  • How long is the flight from Seattle to Barcelona?

    Departing from Seattle to Barcelona will take you 13h 20m. The distance from Seattle to Barcelona is about 5421 mi.

  • What are the cheapest airlines flying from Seattle to Barcelona round-trip?

    Our cheapest airline available from Seattle to Barcelona is Icelandair. Our recent data shows that you can find tickets from as low as $367 on this airline. Additional options worth looking into are Lufthansa and Scandinavian Airlines, starting at $473 and $478 round-trip. Users have found that Icelandair is 52% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Barcelona one-way?

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as $294. However, be on the lookout for offers from WestJet and Air France, as they are both options that can get you from Seattle to Barcelona for a low price.

  • What are the most reliable airlines from Seattle to Barcelona?

    Before booking your flight to Barcelona from Seattle, check out the most reliable airlines to get you to your destination on time: KLM (82%), Air France (82%), Delta( 82%).

  • What are the cheapest flights from Seattle to Barcelona?

    On average you can expect to pay $911 for a flight from Seattle to Barcelona. The cheapest flight overall is $458 while the most popular route, (Seattle/Tacoma Intl - Barcelona-El Prat) is currently priced at $562.

  • Where are the most common layover locations when flying from Seattle to Barcelona?

  • What are some popular things to do or see while on a layover in Frankfurt am Main?

    Most Frankfurt am Main visitors opt to spend their time experiencing Römerberg, Oper Frankfurt, and Festhalle. Römerberg, Oper Frankfurt and Festhalle are located about 7.4 mi, 7.0 mi, and 6.5 mi, respectively from Frankfurt am Main if you are interested in checking them out. Those on a layover in Frankfurt am Main in need of a rental car can book one at Frankfurt am Main for about $43.

  • What are some popular points of interest to see during a layover in London?

    Most London visitors opt to spend their time at Hyde Park, Buckingham Palace, and Piccadilly Circus. Those on a layover in London interested in visiting Hyde Park, Buckingham Palace, or Piccadilly Circus can do so by traveling 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow. Those landing in London looking to spend some time exploring during their layover can rent a car for about $38 per day.

  • What are points of interest worth seeing during a layover in Reykjavik?

    The majority of Reykjavik visitors spend their time at Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool. Those on a layover in Reykjavik interested in visiting Hallgrímskirkja, Harpa, or Laugardalslaug Geothermal Pool can do so by traveling 23.2 mi, 23.3 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Travelers can book a car rental at Reykjavik Keflavik Intl for about $73 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Seattle to Barcelona flights?

  • Can I find deals for flights from Seattle to Barcelona that include hotel bookings?

    Yes. In addition to deals on Seattle to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Barcelona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Barcelona.

  • Can I find deals for business class flights from Seattle to Barcelona?

    Yes. Cheapflights offers flight deals from Seattle to Barcelona by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Barcelona?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona (average of $351). Flying from Seattle to Barcelona in June is currently the most expensive (average of $653). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Seattle to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Seattle to Barcelona

Discover the top 10 airlines that operate flights from Seattle to Barcelona. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$367Average$529FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$473Average$847FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$478Average$577FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$480Average$1,185FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$481Average$857FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$483Average$767FlexibilityNo cancel feeOn-time70%
DeltaCheapest$486Average$1,139FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$488Average$732FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$552Average$722FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$586Average$837FlexibilityNo cancel feeOn-time77%

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