$188+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MAD
Aug 23 — Aug 301
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Spain with Cheapflights
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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 July 24, 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 July 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:10 pm
SEA
- MAD
1 stop18h 45m
Multiple Airlines
Thu 10/227:00 am
MAD
- SEA
1 stop18h 00m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$645
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:00 am
SEA
- MAD
2 stops16h 55m
Multiple Airlines
Wed 10/1410:40 am
MAD
- SEA
1 stop15h 30m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$648
This eDestinos deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:40 pm
SEA
- MAD
1 stop19h 15m
Multiple Airlines
Mon 10/267:00 am
MAD
- SEA
1 stop17h 55m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$651
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:00 am
SEA
- MAD
2 stops16h 55m
Multiple Airlines
Thu 10/1510:40 am
MAD
- SEA
1 stop15h 30m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$662
This FlightHub deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:40 pm
SEA
- PMI
1 stop16h 45m
Condor
Thu 10/221:55 pm
PMI
- SEA
1 stop35h 05m
Condor
Deal found 7/20![Condor logo]()
$668
This SmartFares deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:00 am
SEA
- MAD
2 stops16h 55m
Multiple Airlines
Tue 10/2010:40 am
MAD
- SEA
1 stop15h 30m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$670
This Cheapflightsfares deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:40 pm
SEA
- MAD
1 stop19h 15m
Multiple Airlines
Sat 10/247:00 am
MAD
- SEA
1 stop18h 00m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$672
This SmartFares deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:10 pm
SEA
- PMI
1 stop16h 05m
Condor
Mon 8/249:00 am
PMI
- SEA
1 stop16h 10m
Condor
Deal found 7/20![Condor logo]()
$676
This Cheapflightsfares deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:10 pm
SEA
- MAD
1 stop18h 45m
Multiple Airlines
Wed 10/217:00 am
MAD
- SEA
1 stop17h 40m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$678
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:18 am
SEA
- MAD
2 stops16h 37m
Multiple Airlines
Thu 12/312:00 pm
MAD
- SEA
1 stop17h 15m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$686
This FlightHub deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Mon 9/78:00 am
BCN
- SEA
1 stop17h 10m
Condor
Deal found 7/22![Condor logo]()
$687
This FlightHub deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:15 pm
SEA
- BCN
1 stop18h 55m
Condor
Mon 8/318:00 am
BCN
- SEA
1 stop17h 10m
Condor
Deal found 7/20![Condor logo]()
$688
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 July 24, 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 July 24, 2026.
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:45 am
SEA
- MAD
1 stop17h 30m
United Airlines
Wed 11/181:25 pm
MAD
- SEA
2 stops38h 38m
United Airlines
Deal found 7/24![United Airlines logo]()
$735
This Turkish Airlines deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/127:05 pm
SEA
- MAD
1 stop33h 10m
Turkish Airlines
Wed 1/272:20 pm
MAD
- SEA
1 stop35h 50m
Turkish Airlines
Deal found 7/20![Turkish Airlines logo]()
$749
This United deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:10 pm
SEA
- PMI
1 stop19h 20m
Multiple Airlines
Fri 10/910:10 am
PMI
- SEA
1 stop17h 09m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$757
This Delta deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:05 am
SEA
- AGP
2 stops20h 30m
Delta
Mon 10/195:25 pm
AGP
- SEA
2 stops32h 32m
Delta
Deal found 7/20![Delta logo]()
$806
This KLM deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:45 pm
SEA
- AGP
1 stop19h 55m
KLM
Wed 8/2610:40 am
AGP
- SEA
1 stop14h 47m
KLM
Deal found 7/20![KLM logo]()
$821
This British Airways deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:20 pm
SEA
- AGP
1 stop29h 25m
British Airways
Thu 9/244:55 pm
AGP
- SEA
1 stop27h 40m
British Airways
Deal found 7/21![British Airways logo]()
$827
This Condor deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:51 pm
SEA
- BCN
2 stops42h 19m
Condor
Sat 9/128:00 am
BCN
- SEA
1 stop17h 00m
Condor
Deal found 7/22![Condor logo]()
$872
This Finnair deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:40 pm
SEA
- AGP
2 stops25h 35m
Finnair
Mon 9/281:00 am
AGP
- SEA
2 stops32h 11m
Finnair
Deal found 7/21![Finnair logo]()
$875
This Lufthansa deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:50 pm
SEA
- ALC
1 stop13h 35m
Lufthansa
Sun 9/205:50 pm
ALC
- SEA
1 stop27h 05m
Lufthansa
Deal found 7/21![Lufthansa logo]()
$922
This Scandinavian Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/293:55 pm
SEA
- ALC
2 stops19h 00m
Scandinavian Airlines
Fri 9/1110:40 am
ALC
- SEA
2 stops36h 05m
Scandinavian Airlines
Deal found 7/22![Scandinavian Airlines logo]()
$923
This oojo deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:00 pm
SEA
- TFS
2 stops34h 25m
Icelandair
Mon 8/246:25 pm
TFS
- SEA
1 stop25h 20m
Icelandair
Deal found 7/20![Icelandair logo]()
$1,073
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:10 pm
SEA
- BIO
1 stop14h 10m
United Airlines
Thu 10/226:50 am
BIO
- SEA
2 stops16h 32m
United Airlines
Deal found 7/19![United Airlines logo]()
$739
This Turkish Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/157:05 pm
SEA
- MAD
1 stop33h 10m
Turkish Airlines
Mon 1/186:00 pm
MAD
- SEA
1 stop32h 10m
Turkish Airlines
Deal found 7/23![Turkish Airlines logo]()
$749
This Condor deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:30 pm
SEA
- BCN
2 stops24h 40m
Multiple Airlines
Wed 9/238:00 am
BCN
- SEA
1 stop16h 40m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$778
This Delta deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1211:50 am
SEA
- MAD
2 stops20h 55m
Delta
Tue 1/266:05 am
MAD
- SEA
1 stop14h 45m
Delta
Deal found 7/21![Delta logo]()
$810
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:25 am
SEA
- MAD
1 stop14h 40m
United Airlines
Wed 10/215:55 am
MAD
- SEA
1 stop15h 25m
United Airlines
Deal found 7/24![United Airlines logo]()
$745
This Turkish Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:15 pm
SEA
- MAD
1 stop18h 20m
Turkish Airlines
Mon 10/57:40 am
MAD
- SEA
1 stop18h 40m
Turkish Airlines
Deal found 7/23![Turkish Airlines logo]()
$749
This KLM deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:45 pm
SEA
- ALC
1 stop19h 40m
KLM
Tue 8/2510:15 am
ALC
- SEA
2 stops22h 05m
KLM
Deal found 7/20![KLM logo]()
$826
This British Airways deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:20 pm
SEA
- IBZ
1 stop35h 05m
British Airways
Sat 9/267:45 pm
IBZ
- SEA
1 stop24h 50m
British Airways
Deal found 7/21![British Airways logo]()
$891
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:14 pm
SEA
- MAD
1 stop23h 51m
United Airlines
Wed 10/145:55 am
MAD
- SEA
1 stop15h 25m
United Airlines
Deal found 7/23![United Airlines logo]()
$745
This United deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:04 pm
SEA
- AGP
2 stops23h 31m
Multiple Airlines
Mon 9/76:45 pm
AGP
- SEA
1 stop31h 14m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$828
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:15 am
SEA
- AGP
2 stops19h 30m
Delta
Fri 10/165:55 am
AGP
- SEA
1 stop14h 20m
Delta
Deal found 7/19![Delta logo]()
$829
This Finnair deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:40 am
SEA
- VLC
2 stops37h 10m
Finnair
Thu 9/106:15 am
VLC
- SEA
2 stops26h 56m
Finnair
Deal found 7/21![Finnair logo]()
$915
This Condor deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:15 pm
SEA
- BCN
1 stop18h 55m
Condor
Tue 8/2510:25 am
BCN
- SEA
1 stop14h 15m
Condor
Deal found 7/23![Condor logo]()
$915
This Gotogate deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:15 pm
SEA
- SVQ
1 stop37h 20m
Turkish Airlines
Fri 9/116:35 pm
SVQ
- SEA
1 stop25h 05m
Turkish Airlines
Deal found 7/23![Turkish Airlines logo]()
$790
This KLM deal was found by Cheapflights users on 7/24. 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.
Tue 9/151:50 pm
SEA
- AGP
1 stop14h 15m
KLM
Sat 9/2611:45 pm
AGP
- SEA
1 stop21h 02m
KLM
Deal found 7/24![KLM logo]()
$876
This Lufthansa deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:50 pm
SEA
- PMI
2 stops15h 15m
Lufthansa
Sun 9/138:00 pm
PMI
- SEA
1 stop24h 55m
Lufthansa
Deal found 7/23![Lufthansa logo]()
$967
This British Airways deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:20 pm
SEA
- IBZ
1 stop35h 05m
British Airways
Fri 9/253:10 pm
IBZ
- SEA
1 stop29h 25m
British Airways
Deal found 7/21![British Airways logo]()
$891
This Scandinavian Airlines deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:55 pm
SEA
- PMI
1 stop18h 55m
Scandinavian Airlines
Thu 10/159:55 am
PMI
- SEA
2 stops22h 05m
Scandinavian Airlines
Deal found 7/20![Scandinavian Airlines logo]()
$986
This United Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:50 pm
SEA
- MAD
1 stop13h 50m
United Airlines
Tue 9/291:30 pm
MAD
- SEA
1 stop16h 34m
United Airlines
Deal found 7/22![United Airlines logo]()
$756
Last-minute flights from Seattle to SpainDiscover last-minute flight deals from Seattle to Spain. Data last updated July 24, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Spain. Data last updated July 24, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:15 pm
SEA
- BCN
1 stop18h 55m
Condor
Mon 8/318:00 am
BCN
- SEA
1 stop17h 10m
Condor
Deal found 7/20![Condor logo]()
$688
This oojo deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Tue 8/185:00 pm
BCN
- SEA
1 stop31h 40m
Condor
Deal found 7/22![Condor logo]()
$693
This SmartFares deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:10 pm
SEA
- PMI
1 stop16h 05m
Condor
Mon 8/249:00 am
PMI
- SEA
1 stop16h 10m
Condor
Deal found 7/20![Condor logo]()
$676
This FlightHub deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Sat 8/228:00 am
BCN
- SEA
1 stop17h 00m
Condor
Deal found 7/22![Condor logo]()
$698
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Tue 8/2510:25 am
BCN
- SEA
1 stop14h 15m
Condor
Deal found 7/22![Condor logo]()
$701
This Cheapflightsfares deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:10 pm
SEA
- MAD
1 stop18h 45m
Multiple Airlines
Wed 9/27:00 am
MAD
- SEA
1 stop17h 40m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$704
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Sat 8/2210:25 am
BCN
- SEA
1 stop14h 35m
Condor
Deal found 7/22![Condor logo]()
$711
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:40 pm
SEA
- BCN
1 stop13h 20m
Condor
Tue 9/810:25 am
BCN
- SEA
1 stop14h 15m
Condor
Deal found 7/21![Condor logo]()
$706
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:10 pm
SEA
- BCN
1 stop19h 00m
Condor
Thu 9/1010:15 am
BCN
- SEA
1 stop14h 45m
Condor
Deal found 7/20![Condor logo]()
$697
This Justfly.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:05 pm
SEA
- BCN
1 stop19h 05m
Condor
Tue 9/158:00 am
BCN
- SEA
1 stop16h 40m
Condor
Deal found 7/22![Condor logo]()
$687
This Trip.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:40 pm
SEA
- BCN
1 stop13h 20m
Condor
Fri 9/410:15 am
BCN
- SEA
1 stop14h 45m
Condor
Deal found 7/22![Condor logo]()
$690
This FlightHub deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:40 pm
SEA
- BCN
1 stop13h 20m
Condor
Sat 9/55:00 pm
BCN
- SEA
1 stop31h 40m
Condor
Deal found 7/23![Condor logo]()
$707
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 July 24, 2026.
Search for one-way flight options from Seattle to Spain. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:18 am
SEA
- MAD
2 stops16h 37m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:00 am
SEA
- MAD
2 stops16h 55m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:00 am
SEA
- BCN
3 stops29h 15m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:00 am
SEA
- BCN
3 stops29h 15m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:18 am
SEA
- MAD
3 stops31h 52m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$213
This Ovago deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:00 am
SEA
- MAD
2 stops16h 55m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:00 am
SEA
- PMI
3 stops29h 25m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:52 am
SEA
- BCN
3 stops32h 18m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:00 am
SEA
- MAD
2 stops17h 55m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:00 am
SEA
- MAD
3 stops29h 25m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:00 pm
SEA
- BCN
2 stops19h 25m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:00 am
SEA
- MAD
3 stops42h 40m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$254
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 July 24, 2026.
Round-trip from | $545 (Ovago) |
|---|---|
One-way from | $188 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $954 |
Good round-trip deal | $960 or less |
Good one-way deal | $508 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 July 24, 2026.
Use the filters below to find and compare flights from Seattle to Spain that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleMadrid
SEA - MAD
SEAMAD
Seattle/Tacoma Intl
Sun 11/8
6:45 am-9:15 am
1 stop17h 30m
Madrid Barajas
Wed 11/18
1:25 pm-7:03 pm
2 stops38h 38m
$735
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Mon 10/19
2:10 pm-1:20 pm
1 stop14h 10m
Bilbao
Thu 10/22
6:50 am-2:22 pm
2 stops16h 32m
$739
Quickest round-trip
SeattleMadrid
SEA - MAD
SEAMAD
Seattle/Tacoma Intl
Mon 10/5
8:25 am-8:05 am
1 stop14h 40m
Madrid Barajas
Wed 10/21
5:55 am-12:20 pm
1 stop15h 25m
$745
SeattleMadrid
SEA - MAD
SEAMAD
Seattle/Tacoma Intl
Tue 10/6
11:14 pm-8:05 am
1 stop23h 51m
Madrid Barajas
Wed 10/14
5:55 am-12:20 pm
1 stop15h 25m
$745
SeattleMadrid
SEA - MAD
SEAMAD
Seattle/Tacoma Intl
Tue 1/12
7:05 pm-1:15 pm
1 stop33h 10m
Madrid Barajas
Wed 1/27
2:20 pm-5:10 pm
1 stop35h 50m
$749
SeattleMadrid
SEA - MAD
SEAMAD
Seattle/Tacoma Intl
Fri 1/15
7:05 pm-1:15 pm
1 stop33h 10m
Madrid Barajas
Mon 1/18
6:00 pm-5:10 pm
1 stop32h 10m
$749
SeattleMadrid
SEA - MAD
SEAMAD
Seattle/Tacoma Intl
Thu 9/17
7:15 pm-10:35 pm
1 stop18h 20m
Madrid Barajas
Mon 10/5
7:40 am-5:20 pm
1 stop18h 40m
$749
SeattleMadrid
SEA - MAD
SEAMAD
Seattle/Tacoma Intl
Tue 9/22
6:50 pm-5:40 pm
1 stop13h 50m
Madrid Barajas
Tue 9/29
1:30 pm-9:04 pm
1 stop16h 34m
$756
SeattlePalma de Mallorca
SEA - PMI
SEAPMI
Seattle/Tacoma Intl
Mon 9/21
2:10 pm-6:30 pm
1 stop19h 20m
Palma de Mallorca Son Sant Joan
Fri 10/9
10:10 am-6:19 pm
1 stop17h 09m
$757
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Thu 9/10
12:30 pm-10:10 pm
2 stops24h 40m
Barcelona-El Prat
Wed 9/23
8:00 am-3:40 pm
1 stop16h 40m
$778
Showing 1-10 of 60 resultsSorted by cheapest first
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-MAD
SEA-BCN
SEA-PMI
SEA-SVQ
SEA-BIO
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-MAD
SEA-BCN
SEA-PMI
SEA-SVQ
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 $542). Flying from Seattle to Spain in June is currently the most expensive (average of $1,145). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to ES?
Find hourly flight availability from Seattle to Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 24, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Spain as you normally would.
How often are flights from Seattle to Spain delayed?
About 5% of weekly flights between Seattle and Spain have experienced delays in the past year, with the average delay time being 153 minutes.
What is the most punctual flight time for Seattle to Spain flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Seattle to Spain flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 5% of flights being delayed.
How far ahead should I book a flight from Seattle to Spain?
Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Spain. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 July 24, 2026.
Read reviews from past customers who have flown Delta,Air France, andLufthansa 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
Entertainment
7.8
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Crew
8.5
Overall
7.8
Comfort
7.8
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 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
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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 July 24, 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 July 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$123 | Average$1,222 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$369 | Average$647 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$439 | Average$818 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$454 | Average$859 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$465 | Average$610 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$470 | Average$883 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$471 | Average$858 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$478 | Average$941 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$479 | Average$851 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$480 | Average$1,002 | FlexibilityNo cancel fee | On-time71% |