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Cheap flights from Seattle to Barcelona-El Prat Airport from C$ 649
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
9 Nov — 16 Nov1
Cheap flight deals from Seattle to Barcelona-El Prat
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to Barcelona-El PratExplore the most affordable flight options available from Seattle to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.
Explore the most affordable flight options available from Seattle to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.
Mon 23/117:05 p.m. -
1 stop19h 45m
Fri 11/1212:20 p.m. -
1 stop37h 50m
Deal found 8/10C$ 1,181
Tue 20/1011:54 a.m. -
2 stops25h 16m
Mon 26/106:45 a.m. -
1 stop18h 10m
Deal found 7/10C$ 1,196
Wed 4/118:05 p.m. -
1 stop29h 50m
Wed 11/115:55 a.m. -
1 stop20h 15m
Deal found 5/10C$ 1,209
Mon 19/1011:33 a.m. -
2 stops25h 37m
Thu 29/1010:20 a.m. -
1 stop14h 35m
Deal found 9/10C$ 1,225
Wed 28/108:05 p.m. -
1 stop19h 45m
Mon 2/116:30 a.m. -
1 stop20h 40m
Deal found 8/10C$ 1,235
Wed 18/117:05 p.m. -
1 stop37h 10m
Mon 23/116:30 a.m. -
1 stop19h 40m
Deal found 8/10C$ 1,238
Wed 11/117:05 p.m. -
1 stop30h 50m
Fri 20/1112:20 p.m. -
1 stop37h 50m
Deal found 5/10C$ 1,252
Fri 6/112:35 p.m. -
2 stops21h 25m
Wed 11/113:05 p.m. -
3 stops33h 50m
Deal found 5/10C$ 1,255
Fri 6/118:05 p.m. -
1 stop29h 50m
Wed 11/115:55 a.m. -
1 stop20h 15m
Deal found 5/10C$ 1,265
Sun 18/107:15 p.m. -
1 stop19h 00m
Sun 25/106:20 p.m. -
1 stop31h 50m
Deal found 7/10C$ 1,266
Best flights from Seattle to Barcelona-El PratDiscover carefully curated flight deals from Seattle to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.
Discover carefully curated flight deals from Seattle to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.
Mon 2/118:05 p.m. -
1 stop29h 50m
Mon 9/116:30 a.m. -
1 stop19h 40m
Deal found 5/10C$ 1,238
Wed 6/15:00 a.m. -
2 stops27h 35m
Tue 12/111:50 a.m. -
3 stops58h 23m
Deal found 9/10C$ 1,394
Thu 4/24:05 p.m. -
1 stop12h 55m
Sat 13/26:00 a.m. -
1 stop14h 47m
Deal found 7/10C$ 1,500
Sat 21/117:05 p.m. -
1 stop37h 00m
Wed 25/115:55 a.m. -
2 stops28h 04m
Deal found 5/10C$ 1,552
Mon 15/38:05 p.m. -
1 stop37h 10m
Mon 22/36:30 a.m. -
1 stop19h 40m
Deal found 6/10C$ 1,238
Sat 21/117:05 p.m. -
1 stop37h 00m
Wed 25/1112:20 p.m. -
1 stop37h 50m
Deal found 5/10C$ 1,238
Mon 9/113:25 p.m. -
1 stop16h 35m
Tue 8/121:10 p.m. -
1 stop31h 40m
Deal found 6/10C$ 1,507
Fri 6/118:05 p.m. -
1 stop29h 50m
Wed 11/115:55 a.m. -
1 stop20h 15m
Deal found 5/10C$ 1,265
Wed 18/117:05 p.m. -
1 stop30h 50m
Mon 23/116:30 a.m. -
2 stops25h 48m
Deal found 8/10C$ 1,552
Fri 26/38:05 p.m. -
1 stop36h 35m
Mon 5/47:35 a.m. -
1 stop18h 45m
Deal found 9/10C$ 1,410
Thu 12/111:16 p.m. -
2 stops25h 54m
Thu 19/116:30 p.m. -
1 stop31h 40m
Deal found 5/10C$ 1,531
Last-minute flights from Seattle to Barcelona-El PratDiscover last-minute flight deals from Seattle to Barcelona-El Prat. Data last updated 10 October 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Barcelona-El Prat. Data last updated 10 October 2026 and is based on user searches.
Sun 18/107:15 p.m. -
1 stop19h 00m
Sun 25/106:20 p.m. -
1 stop31h 50m
Deal found 7/10C$ 1,266
Mon 19/1011:33 a.m. -
2 stops25h 37m
Thu 29/1010:20 a.m. -
1 stop14h 35m
Deal found 9/10C$ 1,225
Tue 20/1011:54 a.m. -
2 stops25h 16m
Mon 26/106:45 a.m. -
1 stop18h 10m
Deal found 7/10C$ 1,196
Wed 28/108:05 p.m. -
1 stop19h 45m
Mon 2/116:30 a.m. -
1 stop20h 40m
Deal found 8/10C$ 1,235
Wed 4/118:05 p.m. -
1 stop29h 50m
Wed 11/115:55 a.m. -
1 stop20h 15m
Deal found 5/10C$ 1,209
Fri 6/112:35 p.m. -
2 stops21h 25m
Wed 11/113:05 p.m. -
3 stops33h 50m
Deal found 5/10C$ 1,255
Fri 6/118:05 p.m. -
1 stop29h 50m
Wed 11/115:55 a.m. -
1 stop20h 15m
Deal found 5/10C$ 1,265
Wed 11/117:05 p.m. -
1 stop30h 50m
Fri 20/1112:20 p.m. -
1 stop37h 50m
Deal found 5/10C$ 1,252
Wed 18/117:05 p.m. -
1 stop37h 10m
Mon 23/116:30 a.m. -
1 stop19h 40m
Deal found 8/10C$ 1,238
Mon 23/117:05 p.m. -
1 stop19h 45m
Fri 11/1212:20 p.m. -
1 stop37h 50m
Deal found 8/10C$ 1,181
One-way flights from Seattle to Barcelona-El PratSearch for one-way flight options from Seattle to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
Search for one-way flight options from Seattle to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
Sun 8/116:45 p.m. -
1 stop29h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/10C$ 649
Wed 4/113:25 p.m. -
1 stop13h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/10C$ 658
Sat 7/1111:59 p.m. -
1 stop23h 41m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/10C$ 659
Sat 7/118:30 a.m. -
3 stops43h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/10C$ 696
Fri 6/116:45 p.m. -
1 stop18h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 6/10C$ 705
Fri 6/113:25 p.m. -
1 stop16h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 9/10C$ 729
Thu 5/115:05 a.m. -
2 stops23h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/10C$ 731
Mon 7/121:50 p.m. -
1 stop24h 30m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/10C$ 877
Sun 10/17:05 p.m. -
1 stop37h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 9/10C$ 901
Find flight deals from Seattle to Barcelona-El Prat
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Barcelona-El Prat (BCN). 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 10 October 2026.
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Barcelona-El Prat 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 7,457,451 searches. Data last updated 10 October 2026.
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
Cheapest round-trip
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Wed 4/11
6:45 p.m.-1:40 p.m.
1 stop33h 55m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 649
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Mon 9/11
6:45 p.m.-10:40 a.m.
1 stop30h 55m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 649
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Tue 3/11
6:45 p.m.-10:25 a.m.
1 stop30h 40m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 649
Quickest round-trip
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Wed 4/11
3:25 p.m.-2:00 p.m.
1 stop13h 35m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 658
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Sat 7/11
11:59 p.m.-8:40 a.m.
1 stop23h 41m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 659
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Fri 6/11
6:45 p.m.-10:40 a.m.
1 stop30h 55m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 721
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Fri 6/11
3:25 p.m.-5:00 p.m.
1 stop16h 35m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 729
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Thu 5/11
5:05 a.m.-1:15 p.m.
2 stops23h 10m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 731
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Mon 7/12
1:50 p.m.-11:20 p.m.
1 stop24h 30m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 906
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Fri 6/11
12:20 p.m.-9:35 a.m.
3 stops36h 15m
Barcelona-El Prat
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 907
Showing 1-10 of 23 resultsSorted by cheapest first
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.
SEA-BCN
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-El Prat Airport
Prices
Delays
More
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$ 684). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,696). 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-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 October 2026.
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 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 192 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.
What’s the top layover airport for flights from Seattle to Barcelona-El Prat Airport?
Share of one-stop round-trip flights from Seattle to Barcelona-El Prat Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Frankfurt am Main (FRA) – chosen by Cheapflights users on 33% of one-stop itineraries from Seattle to Barcelona-El Prat Airport on Cheapflights.
What’s the cheapest layover airport for flights from Seattle to Barcelona-El Prat Airport?
Average round-trip fare for 1-stop flights from Seattle to Barcelona-El Prat Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of C$ 992.
What’s the fastest layover option from Seattle to Barcelona-El Prat Airport?
Shortest average travel time for 1-stop one-way flights from Seattle to Barcelona-El Prat Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for 1-stop routes: 13h 00m.
Which airport typically offers the quickest layover for flights from Seattle to Barcelona-El Prat Airport?
Average layover duration for 1-stop one-way flights from Seattle to Barcelona-El Prat Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average layover time of 1h 23m.
Related info for your journey
Find useful and relevant information for your journey from Seattle to Barcelona-El Prat. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Barcelona-El Prat Airport?
Book flights to Barcelona-El Prat Airport if you plan to visit one of these locationsSanta Susanna
Malgrat de Mar
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Other flights to Barcelona-El Prat
Explore flights to Barcelona-El Prat departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.
Complete your trip
Complete your trip to Barcelona-El Prat by adding a car rental and/or hotel reservation to your travel itinerary.
Direct flights to Catalonia
Book a non-stop flight to one of these other cities located in Catalonia.
Search flights from Seattle to Barcelona-El Prat by cabin class
Find flights from Seattle to Barcelona-El Prat, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Barcelona-El Prat flights
Browse other Seattle and Barcelona-El Prat flight options. Last updated on 10 October 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
Fly with Cheapflights
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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.