$315+ 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SEA
Jun 15 — Jun 221
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 May 16, 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 May 16, 2026.
This Expedia deal was found by Cheapflights users on 5/14. 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.
Thu 10/1510:15 am
BCN
- SEA
1 stop14h 45m
Condor
Thu 10/226:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Deal found 5/14![Condor logo]()
$575
This Cheapflightsfares deal was found by Cheapflights users on 5/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:00 am
BCN
- SEA
1 stop17h 00m
Condor
Sat 10/246:35 pm
SEA
- BCN
1 stop19h 35m
Condor
Deal found 5/14![Condor logo]()
$606
This Gotogate deal was found by Cheapflights users on 5/16. 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 Gotogate 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 5/16![Condor logo]()
$636
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:25 am
BCN
- SEA
1 stop14h 15m
Condor
Tue 5/266:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Deal found 5/14![Condor logo]()
$649
This Cheapflightsfares deal was found by Cheapflights users on 5/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Wed 5/275:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 5/14![Condor logo]()
$651
This Gotogate deal was found by Cheapflights users on 5/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2910:15 am
BCN
- SEA
1 stop14h 45m
Condor
Sat 6/136:15 pm
SEA
- BCN
1 stop18h 55m
Condor
Deal found 5/15![Condor logo]()
$655
This Gotogate deal was found by Cheapflights users on 5/14. 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.
Thu 5/288:00 am
BCN
- SEA
1 stop17h 00m
Condor
Wed 6/105:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 5/14![Condor logo]()
$656
This Gotogate deal was found by Cheapflights users on 5/11. 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.
Fri 6/198:00 am
BCN
- SEA
1 stop17h 00m
Condor
Sat 6/276:15 pm
SEA
- BCN
1 stop18h 55m
Condor
Deal found 5/11![Condor logo]()
$664
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:15 am
BCN
- SEA
1 stop14h 55m
Condor
Sun 10/256:35 pm
SEA
- BCN
1 stop13h 30m
Condor
Deal found 5/14![Condor logo]()
$666
This FlightHub deal was found by Cheapflights users on 5/14. 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.
Fri 10/1610:15 am
BCN
- SEA
1 stop14h 45m
Condor
Sat 10/246:35 pm
SEA
- BCN
1 stop13h 30m
Condor
Deal found 5/14![Condor logo]()
$670
This Gotogate deal was found by Cheapflights users on 5/14. 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 5/275:00 pm
BCN
- SEA
1 stop32h 00m
Condor
Mon 6/296:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Deal found 5/14![Condor logo]()
$675
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:25 am
BCN
- SEA
1 stop14h 15m
Condor
Wed 10/215:40 pm
SEA
- BCN
1 stop13h 25m
Condor
Deal found 5/14![Condor logo]()
$676
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 May 16, 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 May 16, 2026.
This Condor deal was found by Cheapflights users on 5/16. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:00 am
BCN
- SEA
2 stops24h 12m
Multiple Airlines
Fri 9/256:00 pm
SEA
- BCN
1 stop13h 05m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$768
This Condor deal was found by Cheapflights users on 5/14. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:15 am
BCN
- SEA
1 stop14h 45m
Condor
Thu 10/2211:55 am
SEA
- BCN
2 stops19h 10m
Condor
Deal found 5/14![Condor logo]()
$852
This Turkish Airlines deal was found by Cheapflights users on 5/11. 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.
Thu 6/412:10 pm
BCN
- SEA
1 stop38h 05m
Turkish Airlines
Mon 6/87:10 pm
SEA
- BCN
1 stop19h 05m
Turkish Airlines
Deal found 5/11![Turkish Airlines logo]()
$889
This Delta deal was found by Cheapflights users on 5/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:20 pm
BCN
- SEA
Nonstop11h 41m
Delta
Tue 11/311:25 am
SEA
- BCN
2 stops18h 35m
Delta
Deal found 5/16![Delta logo]()
$889
This Scandinavian Airlines deal was found by Cheapflights users on 5/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:00 pm
BCN
- SEA
1 stop27h 45m
Scandinavian Airlines
Mon 9/287:20 am
SEA
- BCN
2 stops25h 50m
Scandinavian Airlines
Deal found 5/15![Scandinavian Airlines logo]()
$916
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Thu 9/246:40 am
BCN
- SEA
1 stop14h 15m
United Airlines
Mon 9/281:16 pm
SEA
- BCN
1 stop16h 04m
United Airlines
Deal found 5/15![United Airlines logo]()
$922
This British Airways deal was found by Cheapflights users on 5/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/316:35 pm
BCN
- SEA
1 stop26h 00m
British Airways
Tue 6/161:30 pm
SEA
- BCN
1 stop22h 00m
British Airways
Deal found 5/15![British Airways logo]()
$938
This Condor deal was found by Cheapflights users on 5/13. 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.
Mon 6/88:00 am
BCN
- SEA
2 stops20h 48m
Multiple Airlines
Thu 6/116:05 pm
SEA
- BCN
1 stop19h 05m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$811
This Delta deal was found by Cheapflights users on 5/13. 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.
Fri 6/121:20 pm
BCN
- SEA
Nonstop11h 15m
Delta
Fri 6/195:45 pm
SEA
- BCN
1 stop13h 40m
Delta
Deal found 5/13![Delta logo]()
$903
This KLM deal was found by Cheapflights users on 5/14. 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 10/161:20 pm
BCN
- SEA
Nonstop11h 41m
Multiple Airlines
Thu 10/221:30 pm
SEA
- BCN
1 stop16h 20m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$895
This Delta deal was found by Cheapflights users on 5/12. 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 6/116:20 am
BCN
- SEA
2 stops21h 16m
Delta
Thu 6/183:35 pm
SEA
- BCN
Nonstop10h 35m
Delta
Deal found 5/12![Delta logo]()
$906
This Delta deal was found by Cheapflights users on 5/14. 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.
Wed 6/31:20 pm
BCN
- SEA
Nonstop11h 10m
Delta
Wed 6/101:30 pm
SEA
- BCN
1 stop18h 40m
Delta
Deal found 5/14![Delta logo]()
$919
Last-minute flights from Barcelona-El Prat to SeattleDiscover last-minute flight deals from Barcelona-El Prat to Seattle. Data last updated May 16, 2026 and is based on user searches.
Discover last-minute flight deals from Barcelona-El Prat to Seattle. Data last updated May 16, 2026 and is based on user searches.
This Flighttix deal was found by Cheapflights users on 5/14. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:00 am
BCN
- SEA
1 stop17h 00m
Condor
Fri 5/226:00 pm
SEA
- BCN
1 stop13h 05m
Condor
Deal found 5/14![Condor logo]()
$725
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:25 am
BCN
- SEA
1 stop14h 15m
Condor
Tue 5/266:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Deal found 5/14![Condor logo]()
$649
This Cheapflightsfares deal was found by Cheapflights users on 5/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2110:15 am
BCN
- SEA
1 stop14h 45m
Condor
Wed 5/275:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 5/14![Condor logo]()
$651
This Gotogate deal was found by Cheapflights users on 5/14. 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 5/275:00 pm
BCN
- SEA
1 stop32h 00m
Condor
Mon 6/296:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Deal found 5/14![Condor logo]()
$675
This Gotogate deal was found by Cheapflights users on 5/14. 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.
Thu 5/288:00 am
BCN
- SEA
1 stop17h 00m
Condor
Wed 6/105:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 5/14![Condor logo]()
$656
This Gotogate deal was found by Cheapflights users on 5/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2910:15 am
BCN
- SEA
1 stop14h 45m
Condor
Sat 6/136:15 pm
SEA
- BCN
1 stop18h 55m
Condor
Deal found 5/15![Condor logo]()
$655
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:45 am
BCN
- SEA
3 stops41h 00m
Multiple Airlines
Wed 6/33:40 pm
SEA
- BCN
2 stops24h 10m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$711
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:00 pm
BCN
- SEA
1 stop32h 00m
Condor
Tue 6/96:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Deal found 5/14![Condor logo]()
$685
This FlightHub deal was found by Cheapflights users on 5/14. 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 6/35:00 pm
BCN
- SEA
1 stop32h 00m
Condor
Wed 6/105:40 pm
SEA
- BCN
1 stop19h 30m
Condor
Deal found 5/14![Condor logo]()
$690
This Flighttix deal was found by Cheapflights users on 5/12. 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.
Tue 6/98:00 am
BCN
- SEA
1 stop16h 40m
Condor
Tue 6/166:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Deal found 5/12![Condor logo]()
$749
This Gotogate deal was found by Cheapflights users on 5/11. 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.
Fri 6/198:00 am
BCN
- SEA
1 stop17h 00m
Condor
Sat 6/276:15 pm
SEA
- BCN
1 stop18h 55m
Condor
Deal found 5/11![Condor logo]()
$664
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 May 16, 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 May 16, 2026.
This Mytrip deal was found by Cheapflights users on 5/13. 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.
Sat 6/1311:00 am
BCN
- SEA
3 stops35h 45m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$315
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:45 am
BCN
- SEA
3 stops40h 00m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/108:30 am
BCN
- SEA
3 stops37h 28m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Mon 10/53:00 pm
BCN
- SEA
2 stops52h 00m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/55:50 am
BCN
- SEA
3 stops34h 19m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/125:45 am
BCN
- SEA
3 stops46h 00m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/96:00 am
BCN
- SEA
2 stops36h 40m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$429
This Trip.com deal was found by Cheapflights users on 5/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1011:25 am
BCN
- SEA
2 stops31h 15m
WestJet
Deal found 5/15![WestJet logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 5/286:45 am
BCN
- SEA
3 stops45h 11m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$433
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 May 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $575 (Expedia) |
One-way from | $315 (Mytrip) |
Popular in | July |
Cheapest in | September |
Average price | $814 |
Good one-way deal | $1,012 or less |
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 May 16, 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
Wed 9/9
8:00 am-11:12 pm
2 stops24h 12m
Seattle/Tacoma Intl
Fri 9/25
6:00 pm-4:05 pm
1 stop13h 05m
$768
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Mon 6/8
8:00 am-7:48 pm
2 stops20h 48m
Seattle/Tacoma Intl
Thu 6/11
6:05 pm-10:10 pm
1 stop19h 05m
$811
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Fri 10/16
10:15 am-4:00 pm
1 stop14h 45m
Seattle/Tacoma Intl
Thu 10/22
11:55 am-4:05 pm
2 stops19h 10m
$852
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Thu 6/4
12:10 pm-5:15 pm
1 stop38h 05m
Seattle/Tacoma Intl
Mon 6/8
7:10 pm-11:15 pm
1 stop19h 05m
$889
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Wed 10/14
1:20 pm-4:01 pm
Nonstop11h 41m
Seattle/Tacoma Intl
Tue 11/3
11:25 am-3:00 pm
2 stops18h 35m
$889
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Fri 10/16
1:20 pm-4:01 pm
Nonstop11h 41m
Seattle/Tacoma Intl
Thu 10/22
1:30 pm-2:50 pm
1 stop16h 20m
$895
Quickest round-trip
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Fri 6/12
1:20 pm-3:35 pm
Nonstop11h 15m
Seattle/Tacoma Intl
Fri 6/19
5:45 pm-4:25 pm
1 stop13h 40m
$903
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Thu 6/11
6:20 am-6:36 pm
2 stops21h 16m
Seattle/Tacoma Intl
Thu 6/18
3:35 pm-11:10 am
Nonstop10h 35m
$906
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Thu 9/24
7:00 pm-1:45 pm
1 stop27h 45m
Seattle/Tacoma Intl
Mon 9/28
7:20 am-6:10 pm
2 stops25h 50m
$916
BarcelonaSeattle
BCN - SEA
BCNSEA
Barcelona-El Prat
Wed 6/3
1:20 pm-3:30 pm
Nonstop11h 10m
Seattle/Tacoma Intl
Wed 6/10
1:30 pm-5:10 pm
1 stop18h 40m
$919
Showing 1-10 of 24 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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | 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 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
Prices
More
How far ahead should I book a flight from Barcelona-El Prat Airport to Seattle?
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 75 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 $802). 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.
What is the cheapest time of day to fly from BCN to SEA?
Find hourly flight availability from Barcelona-El Prat to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 16, 2026.
When flying from Barcelona-El Prat Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 May 16, 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.
Entertainment
7.8
Comfort
7.8
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Ocean Shores
Olympia
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
Marysville
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Barcelona-El Prat and Seattle flights
Browse other Barcelona-El Prat and Seattle flight options. Last updated on May 16, 2026.
Other flights from Barcelona-El Prat
Browse through other flights departing from Barcelona-El Prat. Flights are based on user searches made on Cheapflights and were last updated on May 16, 2026.
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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 May 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$600 | Average$700 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$662 | Average$836 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$777 | Average$819 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$814 | Average$840 | FlexibilityNo cancel fee | On-timeN/A |