$271+ Cheap flights from Seattle (SEA) to Barcelona-El Prat (BCN)
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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Barcelona-El Prat with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Barcelona-El Prat 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-El Prat
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 September 23, 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 September 23, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/21. 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.
Sun 10/185:40 pm -
1 stop19h 30m
Sun 10/256:45 am -
1 stop16h 10m
Deal found 9/21![Condor logo]()
$623
This Mytrip deal was found by Cheapflights users on 9/18. 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.
Fri 10/23:40 pm -
2 stops22h 50m
Thu 10/158:10 am -
2 stops21h 30m
Deal found 9/18![Multiple Airlines logo]()
$632
This Mytrip deal was found by Cheapflights users on 9/22. 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.
Fri 10/233:40 pm -
2 stops22h 40m
Sat 10/317:00 am -
2 stops19h 00m
Deal found 9/22![Multiple Airlines logo]()
$639
This CheapOair deal was found by Cheapflights users on 9/21. 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.
Tue 10/206:05 pm -
1 stop19h 05m
Sun 10/256:45 am -
1 stop16h 10m
Deal found 9/21![Condor logo]()
$650
This Mytrip deal was found by Cheapflights users on 9/19. 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 9/283:40 pm -
2 stops22h 55m
Wed 10/76:45 am -
2 stops20h 10m
Deal found 9/19![Multiple Airlines logo]()
$663
This Mytrip deal was found by Cheapflights users on 9/20. 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.
Tue 12/12:35 pm -
2 stops23h 55m
Tue 12/88:30 pm -
3 stops29h 30m
Deal found 9/20![Multiple Airlines logo]()
$666
This FlightHub deal was found by Cheapflights users on 9/22. 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.
Wed 10/215:40 pm -
1 stop19h 30m
Wed 10/286:45 am -
2 stops25h 05m
Deal found 9/22![Multiple Airlines logo]()
$673
This FlightHub deal was found by Cheapflights users on 9/18. 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 10/127:10 pm -
1 stop18h 20m
Wed 10/2111:00 am -
1 stop15h 10m
Deal found 9/18![Aer Lingus logo]()
$679
This Mytrip deal was found by Cheapflights users on 9/19. 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.
Sun 11/82:35 pm -
2 stops23h 50m
Sun 11/228:35 pm -
3 stops29h 25m
Deal found 9/19![Multiple Airlines logo]()
$680
This SmartFares deal was found by Cheapflights users on 9/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:05 pm -
1 stop13h 00m
Tue 10/276:45 am -
1 stop18h 10m
Deal found 9/18![Condor logo]()
$684
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 September 23, 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 September 23, 2026.
This Turkish Airlines deal was found by Cheapflights users on 9/23. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:05 pm -
1 stop37h 10m
Wed 12/25:55 am -
1 stop20h 15m
Deal found 9/23![Turkish Airlines logo]()
$829
This KLM deal was found by Cheapflights users on 9/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:20 pm -
Nonstop10h 50m
Fri 10/3010:05 am -
1 stop14h 09m
Deal found 9/18![Multiple Airlines logo]()
$1,019
This United Airlines deal was found by Cheapflights users on 9/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:00 am -
2 stops17h 00m
Sat 11/146:50 am -
1 stop14h 10m
Deal found 9/19![United Airlines logo]()
$1,022
This Delta deal was found by Cheapflights users on 9/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:30 pm -
Nonstop10h 40m
Wed 10/211:20 pm -
Nonstop11h 24m
Deal found 9/21![Delta logo]()
$1,510
This Icelandair deal was found by Cheapflights users on 9/18. 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 12/192:35 pm -
1 stop14h 05m
Tue 12/2912:45 pm -
1 stop13h 15m
Deal found 9/18![Icelandair logo]()
$1,520
This Turkish Airlines deal was found by Cheapflights users on 9/23. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:05 pm -
1 stop19h 45m
Mon 11/26:30 am -
1 stop20h 40m
Deal found 9/23![Turkish Airlines logo]()
$871
This Turkish Airlines deal was found by Cheapflights users on 9/18. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:05 pm -
1 stop30h 50m
Mon 11/236:30 am -
1 stop19h 40m
Deal found 9/18![Turkish Airlines logo]()
$952
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:00 am -
2 stops17h 00m
Wed 11/186:50 am -
1 stop14h 10m
Deal found 9/20![United Airlines logo]()
$1,062
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 am -
2 stops17h 00m
Mon 11/236:50 am -
1 stop14h 10m
Deal found 9/21![United Airlines logo]()
$1,068
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:56 pm -
2 stops24h 24m
Mon 11/306:50 am -
1 stop14h 10m
Deal found 9/22![United Airlines logo]()
$1,113
This Turkish Airlines deal was found by Cheapflights users on 9/18. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:15 pm -
1 stop19h 00m
Thu 10/2212:10 pm -
1 stop38h 10m
Deal found 9/18![Turkish Airlines logo]()
$1,132
Last-minute flights from Seattle to Barcelona-El PratDiscover last-minute flight deals from Seattle to Barcelona-El Prat. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Barcelona-El Prat. Data last updated September 23, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/19. 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 9/283:40 pm -
2 stops22h 55m
Wed 10/76:45 am -
2 stops20h 10m
Deal found 9/19![Multiple Airlines logo]()
$663
This Mytrip deal was found by Cheapflights users on 9/18. 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.
Fri 10/23:40 pm -
2 stops22h 50m
Thu 10/158:10 am -
2 stops21h 30m
Deal found 9/18![Multiple Airlines logo]()
$632
This Cheapflightsfares deal was found by Cheapflights users on 9/20. 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.
Tue 10/66:05 pm -
1 stop19h 05m
Wed 10/218:00 am -
1 stop16h 40m
Deal found 9/20![Condor logo]()
$689
This FlightHub deal was found by Cheapflights users on 9/18. 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 10/127:10 pm -
1 stop18h 20m
Wed 10/2111:00 am -
1 stop15h 10m
Deal found 9/18![Aer Lingus logo]()
$679
This Cheapflightsfares deal was found by Cheapflights users on 9/21. 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.
Sun 10/185:40 pm -
1 stop19h 30m
Sun 10/256:45 am -
1 stop16h 10m
Deal found 9/21![Condor logo]()
$623
This CheapOair deal was found by Cheapflights users on 9/21. 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.
Tue 10/206:05 pm -
1 stop19h 05m
Sun 10/256:45 am -
1 stop16h 10m
Deal found 9/21![Condor logo]()
$650
This FlightHub deal was found by Cheapflights users on 9/22. 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.
Wed 10/215:40 pm -
1 stop19h 30m
Wed 10/286:45 am -
2 stops25h 05m
Deal found 9/22![Multiple Airlines logo]()
$673
This SmartFares deal was found by Cheapflights users on 9/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:05 pm -
1 stop13h 00m
Tue 10/276:45 am -
1 stop18h 10m
Deal found 9/18![Condor logo]()
$684
This Mytrip deal was found by Cheapflights users on 9/22. 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.
Fri 10/233:40 pm -
2 stops22h 40m
Sat 10/317:00 am -
2 stops19h 00m
Deal found 9/22![Multiple Airlines logo]()
$639
This Justfly.com deal was found by Cheapflights users on 9/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:50 pm -
1 stop13h 15m
Mon 10/2610:20 am -
1 stop14h 35m
Deal found 9/20![Condor logo]()
$688
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 September 23, 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 September 23, 2026.
This Trip.com deal was found by Cheapflights users on 9/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/313:35 pm -
2 stops24h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:55 pm -
2 stops55h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:55 pm -
3 stops44h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:00 pm -
2 stops34h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/293:35 pm -
3 stops36h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:40 pm -
3 stops22h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:10 pm -
3 stops33h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:10 pm -
3 stops39h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$288
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 September 23, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $623 (Cheapflightsfares) |
One-way from | $271 (Trip.com) |
Popular in | June |
Cheapest in | January |
Average price | $844 |
Good round-trip deal | $960 or less |
Good one-way deal | $776 or less |
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 September 23, 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
Mon 12/14
2:35 pm-11:59 pm
2 stops24h 24m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$433
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Sat 11/7
10:10 am-9:35 am
2 stops38h 25m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$460
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Tue 10/27
7:00 am-9:00 am
2 stops18h 00m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$463
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Sat 10/17
12:00 pm-9:00 am
3 stops36h 00m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$469
Quickest round-trip
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Thu 10/22
3:30 pm-11:10 am
Nonstop10h 40m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$509
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Sat 10/17
3:20 pm-11:10 am
Nonstop10h 50m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$509
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Sun 3/21
2:50 pm-12:10 pm
1 stop13h 20m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$555
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Mon 11/16
6:45 pm-10:30 pm
1 stop18h 45m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$654
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Tue 11/24
1:30 pm-2:40 pm
1 stop16h 10m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$654
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Wed 11/18
6:45 pm-10:30 pm
1 stop18h 45m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$654
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Seattle to Barcelona-El Prat
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Barcelona-El Prat in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-Barcelona-El Prat Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-Barcelona-El Prat Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Seattle-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Barcelona-El Prat Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Barcelona-El Prat Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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
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 $424). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,189). 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 September 23, 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-El Prat Airport as you normally would.
How often are flights from Seattle to Barcelona delayed?
About 9% 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 last year, Delta have had the lowest number of delays on this route, with just 9% of flights being delayed.
Reviews of airlines servicing Barcelona-El Prat
Get insights into the airlines that provide service to Barcelona-El Prat. 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-El Prat. Reviews last updated September 23, 2026.
See what other customers who have flown with Delta,Turkish Airlines, andIcelandair from Seattle to Barcelona-El Prat Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
Traveling to a place near Barcelona-El Prat Airport?
Book flights to Barcelona-El Prat Airport if you plan to visit one of these locationsRoses
Calella
Badalona
L'Hospitalet de Llobregat
El Prat de Llobregat
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Seattle and Barcelona-El Prat flights
Browse other Seattle and Barcelona-El Prat flight options. Last updated on September 23, 2026.
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Top 10 airlines flying from Seattle to Barcelona-El Prat
Discover the top 10 airlines that operate flights from Seattle to Barcelona-El Prat. 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 7,457,451 searches. Data last updated September 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$369 | Average$528 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$473 | Average$981 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$476 | Average$847 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$478 | Average$602 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$480 | Average$1,159 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$485 | Average$1,026 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$486 | Average$1,128 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$570 | Average$770 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$583 | Average$750 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$586 | Average$837 | FlexibilityNo cancel fee | On-time77% |