$375+ Cheap flights from Barcelona-El Prat (BCN) to Seattle (SEA)
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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SEA
May 19 — May 261
Round-trip
1 adult, Economy
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Cheapest flights from Barcelona-El Prat to SeattleExplore the most affordable flight options available from Barcelona-El Prat to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 19, 2026.
Explore the most affordable flight options available from Barcelona-El Prat to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 19, 2026.
This Flighttix deal was found by Cheapflights users on 4/18. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:00 am
BCN
- SEA
1 stop16h 40m
Condor
Sun 5/105:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 4/18![Condor logo]()
$589
This Cheapflightsfares deal was found by Cheapflights users on 4/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1210:15 am
BCN
- SEA
1 stop14h 55m
Condor
Mon 10/126:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Deal found 4/18![Condor logo]()
$595
This Gotogate deal was found by Cheapflights users on 4/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:00 am
BCN
- SEA
1 stop16h 40m
Condor
Tue 10/136:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Deal found 4/14![Condor logo]()
$598
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Fri 5/110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Tue 5/56:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Deal found 4/15![Condor logo]()
$631
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Mon 5/410:15 am
BCN
- SEA
1 stop14h 55m
Condor
Sun 5/105:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 4/15![Condor logo]()
$636
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Fri 5/110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Sun 5/105:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 4/17![Condor logo]()
$637
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Mon 5/46:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Deal found 4/17![Condor logo]()
$656
This Flighttix deal was found by Cheapflights users on 4/18. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:00 am
BCN
- SEA
1 stop16h 40m
Multiple Airlines
Sun 5/108:31 am
SEA
- BCN
2 stops28h 39m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$662
This Expedia deal was found by Cheapflights users on 4/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:00 am
BCN
- SEA
1 stop16h 40m
Condor
Fri 9/256:00 pm
SEA
- BCN
1 stop19h 10m
Condor
Deal found 4/14![Condor logo]()
$664
Best flights from Barcelona-El Prat to SeattleDiscover carefully curated flight deals from Barcelona-El Prat to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 19, 2026.
Discover carefully curated flight deals from Barcelona-El Prat to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 19, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1210:15 am
BCN
- SEA
1 stop14h 55m
Condor
Mon 10/126:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Deal found 4/18![Condor logo]()
$595
This Condor deal was found by Cheapflights users on 4/18. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:00 am
BCN
- SEA
1 stop17h 00m
Multiple Airlines
Sun 5/178:43 am
SEA
- BCN
2 stops28h 27m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$814
This KLM deal was found by Cheapflights users on 4/18. 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.
Fri 5/81:20 pm
BCN
- SEA
Nonstop11h 13m
KLM
Sat 5/233:25 pm
SEA
- BCN
Nonstop10h 45m
KLM
Deal found 4/18![KLM logo]()
$863
This Delta deal was found by Cheapflights users on 4/14. 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.
Sat 5/166:20 am
BCN
- SEA
2 stops21h 29m
Delta
Tue 5/263:25 pm
SEA
- BCN
Nonstop10h 45m
Delta
Deal found 4/14![Delta logo]()
$884
This Virgin Atlantic deal was found by Cheapflights users on 4/14. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:55 am
BCN
- SEA
2 stops22h 04m
Virgin Atlantic
Sat 5/237:59 pm
SEA
- BCN
2 stops27h 36m
Virgin Atlantic
Deal found 4/14![Virgin Atlantic logo]()
$910
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Fri 5/16:40 am
BCN
- SEA
1 stop14h 40m
United Airlines
Tue 5/511:39 am
SEA
- BCN
1 stop17h 41m
United Airlines
Deal found 4/15![United Airlines logo]()
$934
This KLM deal was found by Cheapflights users on 4/14. 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.
Fri 5/81:20 pm
BCN
- SEA
Nonstop11h 13m
Multiple Airlines
Mon 5/186:40 pm
SEA
- BCN
1 stop19h 05m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$877
This KLM deal was found by Cheapflights users on 4/14. 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 5/166:20 am
BCN
- SEA
1 stop14h 22m
KLM
Tue 5/263:25 pm
SEA
- BCN
Nonstop10h 45m
KLM
Deal found 4/14![KLM logo]()
$879
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 6/19:20 am
BCN
- SEA
2 stops20h 19m
Delta
Mon 6/89:45 am
SEA
- BCN
2 stops17h 45m
Delta
Deal found 4/17![Delta logo]()
$915
This KLM deal was found by Cheapflights users on 4/15. 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.
Wed 9/91:20 pm
BCN
- SEA
Nonstop11h 39m
Multiple Airlines
Fri 9/256:45 pm
SEA
- BCN
1 stop13h 25m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$901
Last-minute flights from Barcelona-El Prat to SeattleDiscover last-minute flight deals from Barcelona-El Prat to Seattle. Data last updated April 19, 2026 and is based on user searches.
Discover last-minute flight deals from Barcelona-El Prat to Seattle. Data last updated April 19, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Fri 5/110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Tue 5/56:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Deal found 4/15![Condor logo]()
$631
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Fri 5/110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Sat 5/96:00 pm
SEA
- BCN
1 stop13h 05m
Condor
Deal found 4/17![Condor logo]()
$637
This Kiwi.com deal was found by Cheapflights users on 4/18. 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.
Fri 5/110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Sun 5/105:40 pm
SEA
- BCN
1 stop13h 20m
Condor
Deal found 4/18![Condor logo]()
$638
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Mon 5/46:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Deal found 4/17![Condor logo]()
$656
This KAYAK deal was found by Cheapflights users on 4/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Sun 5/315:40 pm
SEA
- BCN
1 stop13h 20m
Condor
Deal found 4/17![Condor logo]()
$729
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Mon 5/410:15 am
BCN
- SEA
1 stop14h 55m
Condor
Sun 5/105:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 4/15![Condor logo]()
$636
This Flighttix deal was found by Cheapflights users on 4/18. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:15 am
BCN
- SEA
1 stop14h 55m
Condor
Fri 5/86:00 pm
SEA
- BCN
1 stop13h 05m
Condor
Deal found 4/18![Condor logo]()
$734
This Flighttix deal was found by Cheapflights users on 4/18. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:00 am
BCN
- SEA
1 stop16h 40m
Condor
Sun 5/105:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 4/18![Condor logo]()
$589
This Flighttix deal was found by Cheapflights users on 4/18. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:00 am
BCN
- SEA
1 stop16h 40m
Multiple Airlines
Sun 5/108:31 am
SEA
- BCN
2 stops28h 39m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$662
This KAYAK deal was found by Cheapflights users on 4/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:15 am
BCN
- SEA
1 stop14h 45m
Condor
Mon 5/186:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Deal found 4/16![Condor logo]()
$728
This Flighttix deal was found by Cheapflights users on 4/18. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:00 am
BCN
- SEA
1 stop17h 00m
Condor
Sat 5/236:00 pm
SEA
- BCN
1 stop19h 10m
Condor
Deal found 4/18![Condor logo]()
$745
One-way flights from Barcelona-El Prat to SeattleSearch for one-way flight options from Barcelona-El Prat to Seattle. Find affordable one-way fares based on user searches. Data last updated April 19, 2026.
Search for one-way flight options from Barcelona-El Prat to Seattle. Find affordable one-way fares based on user searches. Data last updated April 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/132:05 pm
BCN
- SEA
1 stop37h 30m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/206:10 am
BCN
- SEA
3 stops45h 35m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 6/1812:15 pm
BCN
- SEA
3 stops39h 30m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 6/111:40 pm
BCN
- SEA
3 stops38h 05m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Tue 5/194:00 pm
BCN
- SEA
3 stops59h 45m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$404
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Sat 5/163:00 pm
BCN
- SEA
1 stop27h 40m
WestJet
Deal found 4/17![WestJet logo]()
$407
This FlightHub deal was found by Cheapflights users on 4/14. 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 5/133:00 pm
BCN
- SEA
1 stop27h 40m
WestJet
Deal found 4/14![WestJet logo]()
$408
This Lucky2Go deal was found by Cheapflights users on 4/18. 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 Lucky2Go is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:00 am
BCN
- SEA
2 stops42h 37m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Fri 6/57:35 pm
BCN
- SEA
3 stops53h 25m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Mon 5/112:05 pm
BCN
- SEA
2 stops52h 44m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$417
Find flight deals from Barcelona-El Prat to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Barcelona-El Prat (BCN) to Seattle (SEA). 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 April 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $598 (Gotogate) |
One-way from | $375 (Kiwi.com) |
Popular in | July |
Cheapest in | September |
Average price | $837 |
Cheapflights Fare Finder
Customize your flight search to find flights from Barcelona-El Prat to Seattle 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 April 19, 2026.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Mon 10/12
10:15 am-4:10 pm
1 stop14h 55m
Seattle/Tacoma Intl
Mon 10/12
6:10 pm-10:10 pm
1 stop19h 00m
$595
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Sat 5/2
8:00 am-4:00 pm
1 stop17h 00m
Seattle/Tacoma Intl
Sun 5/17
8:43 am-10:10 pm
2 stops28h 27m
$814
Quickest round-trip
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Fri 5/8
1:20 pm-3:33 pm
Nonstop11h 13m
Seattle/Tacoma Intl
Sat 5/23
3:25 pm-11:10 am
Nonstop10h 45m
$863
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Fri 5/8
1:20 pm-3:33 pm
Nonstop11h 13m
Seattle/Tacoma Intl
Mon 5/18
6:40 pm-10:45 pm
1 stop19h 05m
$877
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Sat 5/16
6:20 am-11:42 am
1 stop14h 22m
Seattle/Tacoma Intl
Tue 5/26
3:25 pm-11:10 am
Nonstop10h 45m
$879
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Sat 5/16
6:20 am-6:49 pm
2 stops21h 29m
Seattle/Tacoma Intl
Tue 5/26
3:25 pm-11:10 am
Nonstop10h 45m
$884
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Wed 9/9
1:20 pm-3:59 pm
Nonstop11h 39m
Seattle/Tacoma Intl
Fri 9/25
6:45 pm-5:10 pm
1 stop13h 25m
$901
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Fri 5/8
10:55 am-11:59 pm
2 stops22h 04m
Seattle/Tacoma Intl
Sat 5/23
7:59 pm-8:35 am
2 stops27h 36m
$910
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Mon 6/1
9:20 am-8:39 pm
2 stops20h 19m
Seattle/Tacoma Intl
Mon 6/8
9:45 am-12:30 pm
2 stops17h 45m
$915
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Fri 5/1
6:40 am-12:20 pm
1 stop14h 40m
Seattle/Tacoma Intl
Tue 5/5
11:39 am-2:20 pm
1 stop17h 41m
$934
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Barcelona-El Prat to Seattle
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 Barcelona-El Prat to Seattle in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Barcelona-El Prat Airport-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Barcelona-El Prat Airport-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Barcelona-El Prat Airport-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Barcelona-El Prat Airport-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub 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 Barcelona-El Prat Airport-Seattle 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 Barcelona-El Prat to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Barcelona-El Prat with our price prediction graph.
BCN-SEA
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 Barcelona-El Prat Airport to Seattle
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How far ahead should I book a flight from Barcelona-El Prat Airport to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Barcelona-El Prat to Seattle. Price data was last updated on April 10, 2026.
The price you pay for your flight from Barcelona-El Prat Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 76 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 Barcelona-El Prat Airport to Seattle?
Currently, September is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Seattle (average of $785). Flying from Barcelona-El Prat Airport to Seattle in July is currently the most expensive (average of $984). 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.
How much does it cost to fly round-trip from Barcelona-El Prat Airport to Seattle?
What’s the top layover airport for flights from Barcelona-El Prat Airport to Seattle?
Share of 1-stop round-trip flights from Barcelona-El Prat Airport to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.
Frankfurt am Main (FRA) – chosen by Cheapflights users on 80% of 1-stop itineraries from Barcelona-El Prat Airport to Seattle on Cheapflights.
What’s the cheapest layover airport for flights from Barcelona-El Prat Airport to Seattle?
Average round-trip fare for 1-stop flights from Barcelona-El Prat Airport to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Frankfurt am Main (FRA) is the most affordable 1-stop option, with an average round-trip price of $837.
What’s the fastest layover option from Barcelona-El Prat Airport to Seattle?
Shortest average travel time for 1-stop one-way flights from Barcelona-El Prat Airport to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for 1-stop routes: 14h 35m.
Which airport typically offers the quickest layover for flights from Barcelona-El Prat Airport to Seattle?
Average layover duration for 1-stop one-way flights from Barcelona-El Prat Airport to Seattle, 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 45m.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated April 19, 2026.
See what other customers who have flown with Delta,Lufthansa, andBritish Airways from Barcelona-El Prat Airport to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Barcelona-El Prat to Seattle. 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 Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Tacoma
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Leavenworth
Snoqualmie
Tumwater
Tukwila
Renton
Puyallup
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
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Barcelona-El Prat and Seattle flights
Browse other Barcelona-El Prat and Seattle flight options. Last updated on April 19, 2026.
Other flights from Barcelona-El Prat
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Top 4 airlines flying from Barcelona-El Prat to Seattle
Discover the top 4 airlines that operate flights from Barcelona-El Prat to Seattle. 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 April 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$600 | Average$700 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$712 | Average$819 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$765 | Average$851 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$814 | Average$840 | FlexibilityNo cancel fee | On-timeN/A |