Find flights
Deals
When to book
FAQs

Cheap flights from Seattle to Barcelona-El Prat Airport from C$ 520

SEA — BCN
26 Sep — 3 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Barcelona-El Prat

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Barcelona-El Prat

Tue 20/106:05 p.m. -
1 stop19h 05m
Sun 1/115:05 p.m. -
1 stop31h 50m
Deal found 25/8C$ 960
Tue 20/106:05 p.m. -
1 stop19h 05m
Wed 28/105:00 p.m. -
1 stop31h 55m
Deal found 25/8C$ 983
Mon 28/911:41 a.m. -
2 stops25h 29m
Wed 14/1010:25 a.m. -
1 stop14h 15m
Deal found 25/8C$ 985
Fri 2/103:55 p.m. -
2 stops32h 50m
Sat 10/1010:45 a.m. -
2 stops36h 00m
Deal found 25/8C$ 989
Mon 19/106:10 p.m. -
1 stop19h 00m
Mon 26/1010:15 a.m. -
1 stop14h 40m
Deal found 25/8C$ 990
Sat 17/106:00 p.m. -
1 stop19h 10m
Mon 26/1010:15 a.m. -
1 stop14h 40m
Deal found 25/8C$ 1,018
Sun 4/103:33 p.m. -
2 stops21h 37m
Thu 15/1010:15 a.m. -
1 stop14h 45m
Deal found 23/8C$ 1,026
Thu 8/109:59 a.m. -
2 stops27h 11m
Thu 15/1010:15 a.m. -
1 stop14h 45m
Deal found 24/8C$ 1,037
Tue 6/1011:54 a.m. -
2 stops25h 16m
Tue 13/108:00 a.m. -
1 stop16h 40m
Deal found 22/8C$ 1,039
Thu 22/106:05 p.m. -
1 stop13h 00m
Wed 28/105:00 p.m. -
1 stop31h 55m
Deal found 25/8C$ 1,046
Mon 19/103:40 p.m. -
1 stop14h 05m
Thu 29/102:45 p.m. -
1 stop35h 15m
Deal found 25/8C$ 1,048

Find flight deals from Seattle to Barcelona-El Prat

Round-trip from

C$ 960

One-way from

C$ 520

Popular in

June

Cheapest in

January

Average price

C$ 1,245
Condor
  • Condor
  • 20/10-1/11
  • 2 total stops
  • 50h 55m total
  • Seattle to Barcelona
Search Deals
Icelandair
  • Icelandair
  • 5/10
  • 1 total stop
  • 14h 05m total
  • Seattle to Barcelona
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 346 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Barcelona-El Prat Airport 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

Mon 5/10

6:10 p.m.-10:10 p.m.

1 stop19h 00m

Barcelona-El Prat

Tue 20/10

8:00 a.m.-3:40 p.m.

1 stop16h 40m

C$ 1,018

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Sat 17/10

6:00 p.m.-10:10 p.m.

1 stop19h 10m

Barcelona-El Prat

Wed 28/10

5:00 p.m.-4:55 p.m.

1 stop31h 55m

C$ 1,046

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Sun 18/10

3:40 p.m.-2:45 p.m.

1 stop14h 05m

Barcelona-El Prat

Thu 29/10

2:45 p.m.-6:00 p.m.

1 stop35h 15m

C$ 1,084

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Sat 17/10

7:00 p.m.-2:45 p.m.

1 stop34h 45m

Barcelona-El Prat

Thu 29/10

2:45 p.m.-6:00 p.m.

1 stop35h 15m

C$ 1,087

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Tue 20/10

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

Nonstop10h 40m

Barcelona-El Prat

Wed 28/10

1:10 p.m.-12:47 p.m.

1 stop31h 37m

C$ 1,312

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Mon 2/11

6:00 a.m.-9:00 a.m.

2 stops18h 00m

Barcelona-El Prat

Wed 18/11

6:00 a.m.-2:55 p.m.

2 stops17h 55m

C$ 1,338

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Tue 20/10

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

Nonstop10h 40m

Barcelona-El Prat

Tue 27/10

1:10 p.m.-12:47 p.m.

1 stop31h 37m

C$ 1,364
Quickest round-trip

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Fri 18/9

6:45 p.m.-5:10 p.m.

1 stop13h 25m

Barcelona-El Prat

Fri 25/9

1:20 p.m.-3:45 p.m.

Nonstop11h 25m

C$ 1,407

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Sat 12/9

6:15 p.m.-10:10 p.m.

1 stop18h 55m

Barcelona-El Prat

Sun 20/9

8:00 a.m.-11:42 p.m.

2 stops24h 42m

C$ 1,410

SeattleBarcelona

SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat

SEABCN

Seattle/Tacoma Intl

Thu 15/10

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

Nonstop10h 40m

Barcelona-El Prat

Fri 30/10

12:10 p.m.-2:50 p.m.

1 stop34h 40m

C$ 1,480

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/8

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Seattle to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat 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-El Prat Airport

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

The price you pay for your flight from Seattle to Barcelona-El Prat Airport may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Barcelona-El Prat Airport?

Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of C$ 660). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,647). 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-El Prat Airport, 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-El Prat Airport?

Airfare is typical for this route at the moment.

Seattle to Barcelona-El Prat Airport flights typically cost between C$ 922 and C$ 1,521 in October.
The cheapest round-trip price found within the last 5 days was C$ 960 on Condor (20 Oct-1 Nov).

Related info for your journey

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

    Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Barcelona-El Prat from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Barcelona-El Prat should be relatively easy as there is 1 daily outbound flight to Barcelona-El Prat from 0 different airlines.

  • How long is the flight from Seattle to Barcelona-El Prat Airport?

    A quick flight from Seattle to Barcelona-El Prat Airport can take about 10h 40m. Condor provides one of the quickest options available for as low as C$ 1,312. The distance from Seattle to Barcelona-El Prat Airport is about 8724 km. This flight may include one or multiple stops.

  • What are the most reliable airlines from Seattle to Barcelona-El Prat Airport?

    Before booking your flight to Barcelona-El Prat Airport from Seattle, check out the most reliable airlines to get you to your destination on time: KLM (81%), Air France (81%), Delta( 81%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Barcelona-El Prat 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-El Prat Airport?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of C$ 660). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,647). 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

Travelling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Santa Susanna
Malgrat de Mar

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Seattle to Barcelona-El Prat?

Deals for Seattle to Barcelona-El Prat flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Barcelona-El Prat?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Barcelona-El Prat for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Barcelona-El Prat with no change fees?

Yes, we can. To see specific flights from Seattle to Barcelona-El Prat with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Barcelona-El Prat become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Barcelona-El Prat flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.