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Cheap flights from Seattle to Barcelona from C$ 399

SEA — BCN
3 Oct — 10 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Barcelona

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Barcelona

Sat 10/106:00 p.m. -
1 stop19h 10m
Fri 23/1010:15 a.m. -
1 stop14h 45m
Deal found 30/8C$ 957
Sat 7/112:35 p.m. -
1 stop14h 05m
Thu 19/112:45 p.m. -
1 stop35h 15m
Deal found 1/9C$ 960
Wed 2/95:40 p.m. -
1 stop19h 30m
Thu 24/98:00 a.m. -
1 stop17h 00m
Deal found 30/8C$ 972
Tue 6/1011:20 a.m. -
2 stops25h 50m
Fri 23/108:00 a.m. -
1 stop17h 00m
Deal found 1/9C$ 986
Tue 20/106:05 p.m. -
1 stop19h 05m
Wed 28/105:00 p.m. -
1 stop31h 55m
Deal found 1/9C$ 987
Sun 18/105:40 p.m. -
1 stop13h 20m
Mon 26/107:00 a.m. -
1 stop17h 55m
Deal found 1/9C$ 992
Sun 11/103:33 p.m. -
2 stops21h 37m
Thu 15/1010:15 a.m. -
1 stop14h 45m
Deal found 1/9C$ 1,000
Fri 23/106:00 p.m. -
1 stop13h 05m
Mon 26/107:00 a.m. -
1 stop17h 55m
Deal found 1/9C$ 1,004
Tue 17/1111:15 p.m. -
1 stop24h 05m
Wed 25/111:35 p.m. -
2 stops31h 44m
Deal found 3/9C$ 1,008
Sat 10/1011:14 p.m. -
1 stop24h 06m
Fri 23/101:15 p.m. -
2 stops35h 50m
Deal found 30/8C$ 1,015
Sat 3/1010:48 p.m. -
1 stop25h 12m
Fri 16/106:40 a.m. -
1 stop14h 40m
Deal found 31/8C$ 1,017
Mon 5/106:10 p.m. -
1 stop19h 00m
Thu 8/1010:15 a.m. -
1 stop14h 45m
Deal found 31/8C$ 1,018

Find flight deals from Seattle to Barcelona

Round-trip from

C$ 957

One-way from

C$ 399

Popular in

June

Cheapest in

January

Average price

C$ 1,129
Condor
  • Condor
  • 10/10-23/10
  • 2 total stops
  • 33h 55m total
  • Seattle to Barcelona
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5/10-31/12
  • 5/10-31/12
  • 3 total stops
  • 32h 50m total
  • Seattle to Barcelona
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 344 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 71 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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 Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Sun 1/11

2:50 p.m.-2:30 p.m.

1 stop14h 40m

Barcelona-El Prat

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 533

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Tue 27/10

7:45 p.m.-5:30 p.m.

1 stop13h 45m

Barcelona-El Prat

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 635
Quickest round-trip

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Tue 29/9

3:35 p.m.-11:10 a.m.

Nonstop10h 35m

Barcelona-El Prat

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 637

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Tue 6/10

3:30 p.m.-11:10 a.m.

Nonstop10h 40m

Barcelona-El Prat

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 637

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Tue 3/11

4:05 p.m.-5:00 p.m.

1 stop15h 55m

Barcelona-El Prat

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 643

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Thu 8/10

8:20 p.m.-7:35 p.m.

1 stop14h 15m

Barcelona-El Prat

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 704

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Thu 5/11

1:40 p.m.-6:30 p.m.

1 stop19h 50m

Barcelona-El Prat

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 704

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Sun 29/11

6:45 p.m.-10:30 p.m.

1 stop18h 45m

Barcelona-El Prat

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 726

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Thu 1/10

3:30 p.m.-11:10 a.m.

Nonstop10h 40m

Barcelona-El Prat

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 760

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Tue 6/10

11:20 a.m.-10:10 p.m.

2 stops25h 50m

Barcelona-El Prat

Fri 23/10

8:00 a.m.-4:00 p.m.

1 stop17h 00m

C$ 986

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/8

Showing 1-10 of 21 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

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 C$ 661). Flying from Seattle to Barcelona in June is currently the most expensive (average of C$ 1,650). 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?

When flying from Seattle to Barcelona, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Airfare is typical for this route at the moment.
Seattle to Barcelona flights typically cost between C$ 925 and C$ 1,539 in October.
The cheapest round-trip price found within the last 5 days was C$ 957 on Condor (10 Oct-23 Oct).

How often are flights from Seattle to Barcelona delayed?

About 8% of weekly flights between Seattle and Barcelona have experienced delays in the past year, with the average delay time being 134 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?

Saturday 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.

Which airline has the best punctuality record on Seattle to Barcelona flights?

Over the past year, Delta has had the lowest number of delays on this route, with just 8% of flights being delayed.

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

The price you pay for your flight from Seattle to Barcelona may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

  • What airport do you fly from for flights from Seattle to Barcelona?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to Barcelona. 0 airlines have flights from Seattle/Tacoma Intl to Barcelona on a regular basis. Booking flights from Seattle/Tacoma Intl to Barcelona should not be difficult; the airport handles an average of 0 outbound flights to Barcelona per day.

  • How long is the flight from Seattle to Barcelona?

    Departing from Seattle to Barcelona will take you 24h 06m. The distance between Seattle and Barcelona is about 8724 km.

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

    No one likes to see their flight delayed. When booking a flight from Seattle to Barcelona consider choosing KLM (80%), Air France (80%) or Delta (80%) as they are the most reliable in getting you off to your destination on time.

  • 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 C$ 661). Flying from Seattle to Barcelona in June is currently the most expensive (average of C$ 1,650). 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

Seattle to Barcelona-El Prat flights

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Cheapflights makes it easy to find Seattle to Barcelona flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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Certainly. Search results for flights to Barcelona from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Barcelona from Seattle today and book when prices fit your budget.

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