$234+ Cheap flights from Seattle (SEA) to Spain
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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MAD
มี.ค. 20 — มี.ค. 271
1 adult, Economy
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Cheapest flights from Seattle to SpainExplore the most affordable flight options available from Seattle to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on กุมภาพันธ์ 18, 2026.
Explore the most affordable flight options available from Seattle to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on กุมภาพันธ์ 18, 2026.
This Mytrip deal was found by Cheapflights users on 2/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/143:40 pm
SEA
- AGP
1 stop14h 05m
Icelandair
พ. 4/293:45 pm
AGP
- SEA
1 stop13h 55m
Icelandair
Deal found 2/16![Icelandair logo]()
$381
This oojo deal was found by Cheapflights users on 2/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/143:40 pm
SEA
- AGP
1 stop14h 05m
Icelandair
พ. 4/223:45 pm
AGP
- SEA
1 stop35h 10m
Icelandair
Deal found 2/16![Icelandair logo]()
$385
This oojo deal was found by Cheapflights users on 2/17. 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.
พ. 4/223:40 pm
SEA
- ALC
1 stop22h 15m
Icelandair
อ. 5/511:50 pm
ALC
- SEA
1 stop27h 05m
Icelandair
Deal found 2/17![Icelandair logo]()
$395
This FlightHub deal was found by Cheapflights users on 2/17. 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.
อ. 4/217:00 pm
SEA
- ALC
1 stop18h 55m
Icelandair
พ. 5/63:50 pm
ALC
- SEA
1 stop13h 50m
Icelandair
Deal found 2/17![Icelandair logo]()
$398
This FlightHub deal was found by Cheapflights users on 2/17. 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.
อ. 4/217:00 pm
SEA
- ALC
1 stop18h 55m
Icelandair
อ. 5/511:50 pm
ALC
- SEA
1 stop27h 05m
Icelandair
Deal found 2/17![Icelandair logo]()
$400
This FlightHub deal was found by Cheapflights users on 2/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 5/33:40 pm
SEA
- BCN
1 stop14h 05m
Icelandair
ส. 5/93:45 pm
BCN
- SEA
1 stop13h 55m
Icelandair
Deal found 2/15![Icelandair logo]()
$409
This FlightHub deal was found by Cheapflights users on 2/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 5/27:00 pm
SEA
- BCN
1 stop34h 45m
Icelandair
ศ. 5/83:45 pm
BCN
- SEA
1 stop13h 55m
Icelandair
Deal found 2/15![Icelandair logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 2/18. 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.
ศ. 4/247:00 pm
SEA
- BCN
1 stop34h 45m
Icelandair
พ. 4/293:45 pm
BCN
- SEA
1 stop13h 55m
Icelandair
Deal found 2/18![Icelandair logo]()
$414
This KAYAK deal was found by Cheapflights users on 2/17. 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.
ศ. 4/247:00 pm
SEA
- ALC
1 stop18h 55m
Icelandair
พ. 5/63:50 pm
ALC
- SEA
1 stop13h 50m
Icelandair
Deal found 2/17![Icelandair logo]()
$420
This KAYAK deal was found by Cheapflights users on 2/17. 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.
จ. 4/207:00 pm
SEA
- ALC
1 stop18h 55m
Icelandair
พ. 5/63:50 pm
ALC
- SEA
1 stop13h 50m
Icelandair
Deal found 2/17![Icelandair logo]()
$421
This KAYAK deal was found by Cheapflights users on 2/17. 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.
จ. 4/207:00 pm
SEA
- ALC
1 stop18h 55m
Icelandair
พฤ. 5/711:50 pm
ALC
- SEA
1 stop27h 05m
Icelandair
Deal found 2/17![Icelandair logo]()
$422
This oojo deal was found by Cheapflights users on 2/17. 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.
พ. 4/223:40 pm
SEA
- BCN
1 stop14h 05m
Icelandair
จ. 4/273:45 pm
BCN
- SEA
1 stop13h 55m
Icelandair
Deal found 2/17![Icelandair logo]()
$426
Best flights from Seattle to SpainDiscover carefully curated flight deals from Seattle to Spain that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated กุมภาพันธ์ 18, 2026.
Discover carefully curated flight deals from Seattle to Spain that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated กุมภาพันธ์ 18, 2026.
This Delta deal was found by Cheapflights users on 2/14. 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.
อ. 4/216:40 pm
SEA
- BIO
1 stop13h 50m
Delta
พ. 4/296:45 am
BIO
- SEA
1 stop18h 45m
Delta
Deal found 2/14![Delta logo]()
$472
This oojo deal was found by Cheapflights users on 2/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/151:35 pm
SEA
- VLC
1 stop22h 00m
British Airways
พ. 4/2211:25 am
VLC
- SEA
1 stop16h 00m
British Airways
Deal found 2/18![British Airways logo]()
$474
This United Airlines deal was found by Cheapflights users on 2/15. 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.
จ. 4/138:00 am
SEA
- BCN
1 stop16h 20m
United Airlines
อ. 4/211:15 pm
BCN
- SEA
2 stops36h 26m
United Airlines
Deal found 2/15![United Airlines logo]()
$475
This KLM deal was found by Cheapflights users on 2/15. 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.
จ. 4/131:45 pm
SEA
- AGP
1 stop19h 25m
KLM
อ. 4/2111:05 am
AGP
- SEA
1 stop33h 40m
KLM
Deal found 2/15![KLM logo]()
$479
This Finnair deal was found by Cheapflights users on 2/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/131:35 pm
SEA
- AGP
2 stops25h 40m
Finnair
จ. 4/201:00 am
AGP
- SEA
2 stops27h 36m
Finnair
Deal found 2/17![Finnair logo]()
$484
This Booking.com deal was found by Cheapflights users on 2/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/138:20 pm
SEA
- IBZ
2 stops16h 35m
Multiple Airlines
พ. 4/291:20 pm
IBZ
- SEA
1 stop31h 15m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$489
This Trip.com deal was found by Cheapflights users on 2/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 7/296:50 pm
SEA
- BIO
1 stop19h 35m
Lufthansa
พฤ. 9/106:50 am
BIO
- SEA
1 stop14h 05m
Lufthansa
Deal found 2/14![Lufthansa logo]()
$523
This Expedia deal was found by Cheapflights users on 2/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 3/177:50 pm
SEA
- ALC
2 stops28h 45m
Iberia
อ. 3/319:30 pm
ALC
- SEA
2 stops56h 46m
Iberia
Deal found 2/15![Iberia logo]()
$609
This Scandinavian Airlines deal was found by Cheapflights users on 2/18. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/147:15 am
SEA
- PMI
2 stops40h 50m
Scandinavian Airlines
จ. 4/208:40 pm
PMI
- SEA
2 stops31h 23m
Scandinavian Airlines
Deal found 2/18![Scandinavian Airlines logo]()
$653
This Turkish Airlines deal was found by Cheapflights users on 2/15. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 3/77:00 pm
SEA
- SVQ
1 stop30h 35m
Turkish Airlines
ส. 3/1411:50 am
SVQ
- SEA
1 stop38h 15m
Turkish Airlines
Deal found 2/15![Turkish Airlines logo]()
$672
This Delta deal was found by Cheapflights users on 2/14. 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.
อา. 4/196:40 pm
SEA
- BIO
1 stop13h 50m
Delta
พ. 4/296:45 am
BIO
- SEA
1 stop14h 00m
Delta
Deal found 2/14![Delta logo]()
$472
This British Airways deal was found by Cheapflights users on 2/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/141:35 pm
SEA
- IBZ
1 stop13h 40m
British Airways
พ. 4/221:20 pm
IBZ
- SEA
1 stop31h 15m
British Airways
Deal found 2/17![British Airways logo]()
$477
This United Airlines deal was found by Cheapflights users on 2/15. 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.
อ. 4/1411:59 pm
SEA
- BCN
1 stop28h 16m
United Airlines
อ. 4/211:15 pm
BCN
- SEA
2 stops36h 26m
United Airlines
Deal found 2/15![United Airlines logo]()
$477
This American Airlines deal was found by Cheapflights users on 2/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/148:20 pm
SEA
- BIO
2 stops17h 55m
Multiple Airlines
พ. 4/221:30 pm
BIO
- SEA
2 stops20h 14m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$496
This Delta deal was found by Cheapflights users on 2/14. 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.
อา. 4/196:40 pm
SEA
- VLC
1 stop31h 55m
Delta
ศ. 5/16:35 am
VLC
- SEA
1 stop14h 07m
Delta
Deal found 2/14![Delta logo]()
$474
This British Airways deal was found by Cheapflights users on 2/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/138:20 pm
SEA
- IBZ
1 stop30h 55m
British Airways
พ. 4/291:20 pm
IBZ
- SEA
1 stop31h 15m
British Airways
Deal found 2/17![British Airways logo]()
$477
This Finnair deal was found by Cheapflights users on 2/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 4/177:09 am
SEA
- BCN
1 stop15h 26m
Finnair
อ. 4/2810:05 am
BCN
- SEA
1 stop14h 55m
Finnair
Deal found 2/17![Finnair logo]()
$532
This KLM deal was found by Cheapflights users on 2/18. 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.
อ. 4/141:45 pm
SEA
- PMI
1 stop16h 10m
KLM
จ. 4/209:15 am
PMI
- SEA
2 stops20h 24m
KLM
Deal found 2/18![KLM logo]()
$533
This Finnair deal was found by Cheapflights users on 2/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/146:00 am
SEA
- AGP
2 stops33h 15m
Multiple Airlines
อ. 4/211:00 am
AGP
- SEA
2 stops43h 35m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 2/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/217:00 am
SEA
- VLC
2 stops25h 30m
United Airlines
พฤ. 4/305:55 am
VLC
- SEA
2 stops27h 02m
United Airlines
Deal found 2/14![United Airlines logo]()
$502
This British Airways deal was found by Cheapflights users on 2/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/138:20 pm
SEA
- IBZ
1 stop30h 55m
British Airways
พ. 4/221:20 pm
IBZ
- SEA
1 stop31h 15m
British Airways
Deal found 2/17![British Airways logo]()
$477
This Delta deal was found by Cheapflights users on 2/14. 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.
พ. 4/221:45 pm
SEA
- VLC
1 stop17h 50m
Delta
ศ. 5/16:35 am
VLC
- SEA
1 stop14h 07m
Delta
Deal found 2/14![Delta logo]()
$478
This KLM deal was found by Cheapflights users on 2/15. 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.
พ. 4/11:45 pm
SEA
- AGP
1 stop20h 30m
KLM
อ. 4/1411:05 am
AGP
- SEA
1 stop33h 40m
KLM
Deal found 2/15![KLM logo]()
$557
This United Airlines deal was found by Cheapflights users on 2/15. 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.
พฤ. 4/911:59 pm
SEA
- BCN
2 stops23h 01m
United Airlines
อ. 4/2112:15 pm
BCN
- SEA
3 stops37h 26m
United Airlines
Deal found 2/15![United Airlines logo]()
$520
This Expedia deal was found by Cheapflights users on 2/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/138:20 pm
SEA
- LPA
2 stops20h 25m
Iberia
จ. 4/209:10 pm
LPA
- SEA
2 stops33h 28m
Iberia
Deal found 2/17![Iberia logo]()
$632
This British Airways deal was found by Cheapflights users on 2/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/228:20 pm
SEA
- VLC
1 stop15h 15m
British Airways
พฤ. 4/309:20 pm
VLC
- SEA
1 stop30h 05m
British Airways
Deal found 2/14![British Airways logo]()
$477
This Delta deal was found by Cheapflights users on 2/17. 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.
อ. 4/147:15 am
SEA
- AGP
2 stops19h 30m
Delta
พ. 4/225:25 pm
AGP
- SEA
1 stop27h 20m
Delta
Deal found 2/17![Delta logo]()
$478
This KLM deal was found by Cheapflights users on 2/14. 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.
อา. 3/296:40 pm
SEA
- AGP
1 stop18h 55m
Multiple Airlines
จ. 4/2010:55 pm
AGP
- SEA
1 stop21h 50m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$551
This BusinessClass deal was found by Cheapflights users on 2/16. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/131:45 pm
SEA
- LPA
1 stop20h 05m
Scandinavian Airlines
จ. 4/207:00 pm
LPA
- SEA
1 stop24h 45m
Scandinavian Airlines
Deal found 2/16![Scandinavian Airlines logo]()
$675
This KAYAK deal was found by Cheapflights users on 2/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 3/47:00 pm
SEA
- SVQ
1 stop36h 40m
Turkish Airlines
อา. 3/85:45 pm
SVQ
- SEA
1 stop32h 20m
Turkish Airlines
Deal found 2/15![Turkish Airlines logo]()
$676
Last-minute flights from Seattle to SpainDiscover last-minute flight deals from Seattle to Spain. Data last updated กุมภาพันธ์ 18, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Spain. Data last updated กุมภาพันธ์ 18, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 2/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 2/258:05 pm
SEA
- BCN
1 stop15h 20m
Aer Lingus
พ. 3/1111:30 am
BCN
- SEA
1 stop15h 50m
Aer Lingus
Deal found 2/17![Aer Lingus logo]()
$469
This oojo deal was found by Cheapflights users on 2/17. 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.
อ. 3/32:35 pm
SEA
- AGP
1 stop14h 10m
Icelandair
พ. 3/112:45 pm
AGP
- SEA
1 stop35h 15m
Icelandair
Deal found 2/17![Icelandair logo]()
$478
This Delta deal was found by Cheapflights users on 2/16. 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.
จ. 3/163:10 pm
SEA
- MAD
1 stop16h 10m
Delta
พ. 4/16:00 am
MAD
- SEA
1 stop14h 45m
Delta
Deal found 2/16![Delta logo]()
$566
This Delta deal was found by Cheapflights users on 2/17. 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.
อ. 3/177:15 am
SEA
- BCN
2 stops19h 55m
Delta
อ. 3/246:00 am
BCN
- SEA
2 stops20h 30m
Delta
Deal found 2/17![Delta logo]()
$498
This United Airlines deal was found by Cheapflights users on 2/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 3/1712:36 pm
SEA
- MAD
3 stops34h 24m
United Airlines
พ. 4/15:55 am
MAD
- SEA
1 stop15h 25m
United Airlines
Deal found 2/16![United Airlines logo]()
$568
This Delta deal was found by Cheapflights users on 2/16. 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.
อ. 3/171:45 pm
SEA
- MAD
2 stops19h 55m
Delta
อ. 3/316:00 am
MAD
- SEA
1 stop14h 45m
Delta
Deal found 2/16![Delta logo]()
$569
This Delta deal was found by Cheapflights users on 2/16. 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.
อ. 3/171:45 pm
SEA
- MAD
2 stops19h 55m
Delta
พ. 4/16:00 am
MAD
- SEA
1 stop14h 45m
Delta
Deal found 2/16![Delta logo]()
$571
This oojo deal was found by Cheapflights users on 2/17. 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.
อ. 3/242:25 pm
SEA
- MAD
1 stop20h 05m
British Airways
อ. 4/211:00 pm
MAD
- SEA
1 stop18h 47m
British Airways
Deal found 2/17![British Airways logo]()
$564
This KLM deal was found by Cheapflights users on 2/14. 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.
อา. 3/296:40 pm
SEA
- AGP
1 stop18h 55m
Multiple Airlines
จ. 4/2010:55 pm
AGP
- SEA
1 stop21h 50m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$551
This oojo deal was found by Cheapflights users on 2/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 3/298:20 pm
SEA
- AGP
1 stop14h 35m
British Airways
จ. 4/208:55 pm
AGP
- SEA
2 stops34h 43m
British Airways
Deal found 2/14![British Airways logo]()
$556
This Finnair deal was found by Cheapflights users on 2/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 3/301:54 pm
SEA
- BIO
2 stops24h 21m
Multiple Airlines
พ. 4/156:45 am
BIO
- SEA
2 stops24h 53m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$567
This KLM deal was found by Cheapflights users on 2/15. 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.
อ. 3/311:45 pm
SEA
- AGP
1 stop23h 25m
KLM
จ. 4/133:40 pm
AGP
- SEA
1 stop29h 05m
KLM
Deal found 2/15![KLM logo]()
$557
One-way flights from Seattle to SpainSearch for one-way flight options from Seattle to Spain. Find affordable one-way fares based on user searches. Data last updated กุมภาพันธ์ 18, 2026.
Search for one-way flight options from Seattle to Spain. Find affordable one-way fares based on user searches. Data last updated กุมภาพันธ์ 18, 2026.
This Mytrip deal was found by Cheapflights users on 2/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พฤ. 4/237:00 pm
SEA
- BCN
2 stops20h 50m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
พฤ. 4/167:00 pm
SEA
- BCN
2 stops20h 50m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
อ. 4/143:40 pm
SEA
- BCN
2 stops23h 45m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
จ. 4/133:40 pm
SEA
- BCN
2 stops23h 45m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
ส. 4/183:40 pm
SEA
- AGP
2 stops23h 35m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
อ. 5/263:40 pm
SEA
- AGP
1 stop21h 25m
Icelandair
Deal found 2/16![Icelandair logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
ส. 4/183:40 pm
SEA
- BCN
2 stops24h 35m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$243
This Trip.com deal was found by Cheapflights users on 2/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 4/177:00 pm
SEA
- BCN
2 stops18h 55m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
อา. 4/193:40 pm
SEA
- BCN
3 stops31h 00m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
พ. 4/153:40 pm
SEA
- BCN
2 stops19h 50m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$250
This Mytrip deal was found by Cheapflights users on 2/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/213:40 pm
SEA
- MAD
2 stops22h 00m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$251
This oojo deal was found by Cheapflights users on 2/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 5/181:35 pm
SEA
- VLC
1 stop21h 10m
British Airways
Deal found 2/15![British Airways logo]()
$258
Find flight deals from Seattle to Spain
Keep the following information in mind while searching for Seattle to Spain flight deals. Data was last updated กุมภาพันธ์ 18, 2026.
Round-trip from | $381 (Mytrip) |
|---|---|
One-way from | $234 (Mytrip) |
Popular in | June |
Cheapest in | February |
Average price | $486 |
Good round-trip deal | $879 or less |
Good one-way deal | $648 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Spain 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 กุมภาพันธ์ 18, 2026.
Use the filters below to find and compare flights from Seattle to Spain that are best for you.
Fly from
Seattle
Fly to
Spain
Route
Depart
Return
Price
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
อ. 4/21
6:40 pm-5:30 pm
1 stop13h 50m
Bilbao
พ. 4/29
6:45 am-4:30 pm
1 stop18h 45m
$472
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
อา. 4/19
6:40 pm-5:30 pm
1 stop13h 50m
Bilbao
พ. 4/29
6:45 am-11:45 am
1 stop14h 00m
$472
SeattleValencia
SEA - VLC
SEAVLC
Seattle/Tacoma Intl
พ. 4/15
1:35 pm-8:35 pm
1 stop22h 00m
Valencia
พ. 4/22
11:25 am-6:25 pm
1 stop16h 00m
$474
SeattleValencia
SEA - VLC
SEAVLC
Seattle/Tacoma Intl
อา. 4/19
6:40 pm-11:35 am
1 stop31h 55m
Valencia
ศ. 5/1
6:35 am-11:42 am
1 stop14h 07m
$474
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
จ. 4/13
8:00 am-9:20 am
1 stop16h 20m
Barcelona-El Prat
อ. 4/21
1:15 pm-4:41 pm
2 stops36h 26m
$475
SeattleIbiza
SEA - IBZ
SEAIBZ
Seattle/Tacoma Intl
อ. 4/14
1:35 pm-12:15 pm
1 stop13h 40m
Ibiza
พ. 4/22
1:20 pm-11:35 am
1 stop31h 15m
$477
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
อ. 4/14
11:59 pm-1:15 pm
1 stop28h 16m
Barcelona-El Prat
อ. 4/21
1:15 pm-4:41 pm
2 stops36h 26m
$477
SeattleIbiza
SEA - IBZ
SEAIBZ
Seattle/Tacoma Intl
จ. 4/13
8:20 pm-12:15 pm
1 stop30h 55m
Ibiza
พ. 4/29
1:20 pm-11:35 am
1 stop31h 15m
$477
SeattleIbiza
SEA - IBZ
SEAIBZ
Seattle/Tacoma Intl
จ. 4/13
8:20 pm-12:15 pm
1 stop30h 55m
Ibiza
พ. 4/22
1:20 pm-11:35 am
1 stop31h 15m
$477
SeattleValencia
SEA - VLC
SEAVLC
Seattle/Tacoma Intl
พ. 4/22
8:20 pm-8:35 pm
1 stop15h 15m
Valencia
พฤ. 4/30
9:20 pm-6:25 pm
1 stop30h 05m
$477
Showing 1-10 of 60 results
Best time to book a flight from Seattle to Spain
Have a flexible travel schedule? Discover the best time to fly to Spain from Seattle with our price prediction graph.
SEA-BCN
SEA-AGP
SEA-MAD
SEA-BIO
SEA-VLC
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 Spain
SEA-ES0
SEA-BCN
SEA-AGP
SEA-MAD
SEA-BIO
What is the cheapest month to book a flight from Seattle to Spain?
Currently, January is the cheapest month in which you can book a flight from Seattle to Spain (average of $353). Flying from Seattle to Spain in June is currently the most expensive (average of $754). 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 often are flights from Seattle to Spain delayed?
About 0% of weekly flights between Seattle and Spain have experienced delays in the past year, with the average delay time being 0 minutes.
What is the most punctual flight time for Seattle to Spain flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Reviews of airlines servicing Spain
Get insights into the airlines that provide service to Spain. 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 Spain. Reviews last updated กุมภาพันธ์ 18, 2026.
Read reviews from past customers who have flown Delta, KLM, and Air France from Seattle to Spain. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Seattle to Spain. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Spain
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Spain by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Spain by cabin class
Find flights from Seattle to Spain, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Spain flights
Browse other Seattle and Spain flight options. Last updated on กุมภาพันธ์ 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to Spain flights
Consider these flights traveling from Seattle to Spain.
Fly to Spain regions
Consider these flights traveling to Spain regions.
Top 10 airlines flying from Seattle to Spain
Discover the top 10 airlines that operate flights from Seattle to Spain. 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 กุมภาพันธ์ 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$123 | Average$1,152 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$367 | Average$578 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$425 | Average$811 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$440 | Average$552 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$471 | Average$865 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$476 | Average$802 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$477 | Average$750 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$479 | Average$929 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$480 | Average$836 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$481 | Average$812 | FlexibilityNo cancel fee | On-time77% |