$421+ Cheap flights from Seattle (SEA) to Osaka (OSA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSA
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Osaka with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Seattle to OsakaExplore the most affordable flight options available from Seattle to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
Explore the most affordable flight options available from Seattle to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
This oojo deal was found by Cheapflights users on 9/28. 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 10/1311:45 am -
1 stop41h 30m
Tue 10/276:05 pm -
1 stop31h 40m
Deal found 9/28![Cathay Pacific logo]()
$854
This oojo deal was found by Cheapflights users on 9/29. 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 10/2611:25 am -
1 stop26h 55m
Wed 11/119:15 pm -
1 stop28h 30m
Deal found 9/29![Cathay Pacific logo]()
$855
This Booking.com deal was found by Cheapflights users on 9/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:45 am -
1 stop26h 55m
Mon 10/267:05 pm -
1 stop30h 40m
Deal found 9/24![Cathay Pacific logo]()
$859
This Booking.com deal was found by Cheapflights users on 9/25. 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.
Mon 10/1911:45 am -
1 stop26h 55m
Sun 11/17:05 pm -
1 stop30h 40m
Deal found 9/25![Cathay Pacific logo]()
$860
This FlightHub deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:25 am -
1 stop26h 55m
Tue 11/109:15 pm -
1 stop28h 30m
Deal found 9/28![Cathay Pacific logo]()
$863
This Booking.com deal was found by Cheapflights users on 9/27. 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.
Wed 10/2811:25 am -
2 stops35h 20m
Wed 11/116:05 pm -
1 stop31h 40m
Deal found 9/27![Cathay Pacific logo]()
$885
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:46 am -
2 stops18h 39m
Tue 12/152:40 pm -
1 stop12h 15m
Deal found 9/28![Japan Airlines logo]()
$984
This Trip.com deal was found by Cheapflights users on 9/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:10 am -
1 stop17h 00m
Wed 12/2311:10 am -
1 stop14h 55m
Deal found 9/24![Korean Air logo]()
$986
This Justfly.com deal was found by Cheapflights users on 9/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:03 am -
2 stops28h 37m
Mon 11/237:35 pm -
1 stop31h 20m
Deal found 9/24![Japan Airlines logo]()
$994
This Trip.com deal was found by Cheapflights users on 9/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:00 pm -
1 stop14h 45m
Wed 12/232:40 pm -
1 stop12h 15m
Deal found 9/24![Japan Airlines logo]()
$998
This Trip.com deal was found by Cheapflights users on 9/26. 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.
Tue 11/1012:10 am -
1 stop17h 00m
Wed 11/1811:10 am -
1 stop14h 55m
Deal found 9/26![Korean Air logo]()
$998
This Booking.com deal was found by Cheapflights users on 9/27. 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.
Mon 11/23:40 pm -
1 stop34h 20m
Fri 11/132:00 pm -
1 stop16h 20m
Deal found 9/27![ANA logo]()
$1,002
Best flights from Seattle to OsakaDiscover carefully curated flight deals from Seattle to Osaka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
Discover carefully curated flight deals from Seattle to Osaka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
This Cathay Pacific deal was found by Cheapflights users on 9/25. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1110:25 am -
1 stop26h 55m
Mon 2/19:50 am -
1 stop39h 55m
Deal found 9/25![Cathay Pacific logo]()
$886
This China Airlines deal was found by Cheapflights users on 9/25. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/1712:10 am -
1 stop18h 25m
Thu 1/287:00 pm -
1 stop16h 10m
Deal found 9/25![China Airlines logo]()
$1,015
This Korean Air deal was found by Cheapflights users on 9/24. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:10 am -
1 stop18h 45m
Fri 11/611:10 am -
1 stop20h 00m
Deal found 9/24![Korean Air logo]()
$1,026
This United Airlines deal was found by Cheapflights users on 9/24. 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 11/96:00 am -
2 stops43h 10m
Tue 11/242:30 pm -
2 stops25h 48m
Deal found 9/24![United Airlines logo]()
$1,033
This SmartFares deal was found by Cheapflights users on 9/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:30 am -
1 stop16h 30m
Thu 10/297:00 pm -
1 stop16h 10m
Deal found 9/24![EVA Air logo]()
$1,046
This Japan Airlines deal was found by Cheapflights users on 9/28. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/912:15 pm -
1 stop14h 40m
Thu 2/112:40 pm -
1 stop12h 25m
Deal found 9/28![Japan Airlines logo]()
$1,108
This Cathay Pacific deal was found by Cheapflights users on 9/25. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1410:25 am -
1 stop26h 55m
Mon 2/15:00 pm -
1 stop32h 45m
Deal found 9/25![Cathay Pacific logo]()
$886
This China Airlines deal was found by Cheapflights users on 9/27. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/212:10 am -
1 stop24h 40m
Sun 2/712:45 pm -
1 stop22h 25m
Deal found 9/27![China Airlines logo]()
$1,015
This Korean Air deal was found by Cheapflights users on 9/24. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/812:10 am -
1 stop24h 30m
Tue 11/2411:10 am -
1 stop14h 55m
Deal found 9/24![Korean Air logo]()
$1,026
This United Airlines deal was found by Cheapflights users on 9/25. 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 1/184:30 pm -
2 stops31h 15m
Thu 1/283:20 pm -
2 stops19h 47m
Deal found 9/25![United Airlines logo]()
$1,033
This Cathay Pacific deal was found by Cheapflights users on 9/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/265:04 pm -
3 stops29h 41m
Wed 11/114:15 pm -
2 stops33h 30m
Deal found 9/28![Cathay Pacific logo]()
$1,020
This Korean Air deal was found by Cheapflights users on 9/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/3112:10 am -
1 stop17h 00m
Thu 2/46:40 pm -
1 stop31h 25m
Deal found 9/27![Korean Air logo]()
$1,026
This China Airlines deal was found by Cheapflights users on 9/24. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/231:10 am -
1 stop18h 25m
Sat 4/101:10 pm -
1 stop22h 05m
Deal found 9/24![China Airlines logo]()
$1,034
This United Airlines deal was found by Cheapflights users on 9/25. 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 1/121:16 pm -
2 stops37h 14m
Thu 1/283:20 pm -
2 stops19h 47m
Deal found 9/25![United Airlines logo]()
$1,036
This Korean Air deal was found by Cheapflights users on 9/24. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2012:10 am -
1 stop17h 00m
Thu 3/1811:10 am -
1 stop14h 55m
Deal found 9/24![Korean Air logo]()
$1,026
This Cathay Pacific deal was found by Cheapflights users on 9/24. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2711:25 am -
2 stops35h 25m
Mon 4/129:05 am -
1 stop17h 00m
Deal found 9/24![Cathay Pacific logo]()
$1,042
This United Airlines deal was found by Cheapflights users on 9/25. 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 2/146:57 am -
2 stops18h 13m
Mon 2/222:30 pm -
1 stop15h 50m
Deal found 9/25![United Airlines logo]()
$1,073
This Korean Air deal was found by Cheapflights users on 9/26. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/214:15 pm -
2 stops24h 55m
Mon 3/16:40 pm -
1 stop31h 25m
Deal found 9/26![Korean Air logo]()
$1,031
This United Airlines deal was found by Cheapflights users on 9/26. 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.
Sat 2/135:30 pm -
2 stops31h 40m
Mon 2/222:30 pm -
1 stop15h 50m
Deal found 9/26![United Airlines logo]()
$1,073
This Trip.com deal was found by Cheapflights users on 9/28. 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.
Thu 11/1211:00 am -
1 stop30h 10m
Thu 11/1911:10 am -
1 stop14h 55m
Deal found 9/28![Korean Air logo]()
$1,047
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Thu 10/226:43 pm -
2 stops28h 07m
Thu 10/293:20 pm -
1 stop15h 00m
Deal found 9/24![United Airlines logo]()
$1,073
This United Airlines deal was found by Cheapflights users on 9/27. 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 2/216:57 am -
2 stops19h 33m
Sat 2/273:20 pm -
1 stop15h 00m
Deal found 9/27![United Airlines logo]()
$1,076
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/266:57 am -
2 stops18h 13m
Fri 3/122:30 pm -
2 stops25h 51m
Deal found 9/28![United Airlines logo]()
$1,239
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/196:57 am -
2 stops18h 13m
Sun 2/282:30 pm -
1 stop15h 50m
Deal found 9/27![United Airlines logo]()
$1,243
Last-minute flights from Seattle to OsakaDiscover last-minute flight deals from Seattle to Osaka. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Osaka. Data last updated September 29, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 9/27. 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.
Sun 10/114:30 pm -
1 stop30h 35m
Wed 10/143:40 pm -
1 stop14h 45m
Deal found 9/27![ANA logo]()
$1,006
This oojo deal was found by Cheapflights users on 9/28. 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 10/1311:45 am -
1 stop41h 30m
Tue 10/276:05 pm -
1 stop31h 40m
Deal found 9/28![Cathay Pacific logo]()
$854
This Booking.com deal was found by Cheapflights users on 9/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:45 am -
1 stop26h 55m
Mon 10/267:05 pm -
1 stop30h 40m
Deal found 9/24![Cathay Pacific logo]()
$859
This Booking.com deal was found by Cheapflights users on 9/25. 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.
Mon 10/1911:45 am -
1 stop26h 55m
Sun 11/17:05 pm -
1 stop30h 40m
Deal found 9/25![Cathay Pacific logo]()
$860
This Booking.com deal was found by Cheapflights users on 9/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:30 pm -
1 stop23h 20m
Mon 10/269:20 pm -
1 stop33h 00m
Deal found 9/24![ANA logo]()
$1,002
This oojo deal was found by Cheapflights users on 9/29. 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 10/2611:25 am -
1 stop26h 55m
Wed 11/119:15 pm -
1 stop28h 30m
Deal found 9/29![Cathay Pacific logo]()
$855
This FlightHub deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:25 am -
1 stop26h 55m
Tue 11/109:15 pm -
1 stop28h 30m
Deal found 9/28![Cathay Pacific logo]()
$863
This Cheapflightsfares deal was found by Cheapflights users on 9/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:40 pm -
1 stop23h 20m
Wed 11/117:05 am -
1 stop23h 15m
Deal found 9/24![ANA logo]()
$1,006
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 10/264:40 pm -
1 stop23h 30m
Tue 11/101:00 pm -
1 stop17h 20m
Deal found 9/28![ANA logo]()
$1,007
This Cheapflightsfares deal was found by Cheapflights users on 9/29. 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 10/267:00 am -
2 stops20h 00m
Wed 11/115:50 pm -
1 stop12h 30m
Deal found 9/29![ANA logo]()
$1,011
This Booking.com deal was found by Cheapflights users on 9/27. 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.
Tue 10/274:40 pm -
1 stop22h 50m
Tue 11/102:00 pm -
1 stop16h 20m
Deal found 9/27![ANA logo]()
$1,005
This Booking.com deal was found by Cheapflights users on 9/27. 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.
Wed 10/2811:25 am -
2 stops35h 20m
Wed 11/116:05 pm -
1 stop31h 40m
Deal found 9/27![Cathay Pacific logo]()
$885
One-way flights from Seattle to OsakaSearch for one-way flight options from Seattle to Osaka. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
Search for one-way flight options from Seattle to Osaka. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This SmartFares deal was found by Cheapflights users on 9/25. 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.
Sat 1/1610:20 am -
1 stop33h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Hainan Airlines logo]()
$421
This SmartFares deal was found by Cheapflights users on 9/28. 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 11/210:25 am -
1 stop26h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Cathay Pacific logo]()
$422
This Mytrip deal was found by Cheapflights users on 9/25. 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.
Wed 3/1010:25 am -
1 stop38h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Cathay Pacific logo]()
$425
This FlightHub deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:25 am -
1 stop26h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Cathay Pacific logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 11/148:09 pm -
3 stops44h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 1/1310:25 am -
1 stop26h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Cathay Pacific logo]()
$440
This Cathay Pacific deal was found by Cheapflights users on 9/25. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1410:25 am -
1 stop38h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Cathay Pacific logo]()
$441
This oojo deal was found by Cheapflights users on 9/25. 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 3/910:25 am -
2 stops35h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Cathay Pacific logo]()
$446
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 1/172:30 pm -
2 stops36h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$449
This Expedia deal was found by Cheapflights users on 9/28. 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.
Mon 3/110:25 am -
2 stops35h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Cathay Pacific logo]()
$451
This Trip.com deal was found by Cheapflights users on 9/25. 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.
Tue 11/1012:10 am -
1 stop24h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Korean Air logo]()
$470
This SmartFares deal was found by Cheapflights users on 9/27. 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.
Sun 10/184:30 pm -
1 stop23h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![ANA logo]()
$473
Find flight deals from Seattle to Osaka
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Osaka (OSA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 29, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $854 (oojo) |
One-way from | $421 (SmartFares) |
Popular in | December |
Cheapest in | January |
Average price | $1,042 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Osaka that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 29, 2026.
Use the filters below to find and compare flights from Seattle to Osaka that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleOsaka
SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl
SEAKIX
Seattle/Tacoma Intl
Mon 1/18
10:25 am-5:40 pm
1 stop38h 15m
Osaka Kansai Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$441
SeattleOsaka
SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl
SEAKIX
Seattle/Tacoma Intl
Tue 1/19
10:25 am-12:45 pm
1 stop33h 20m
Osaka Kansai Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$441
SeattleOsaka
SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl
SEAKIX
Seattle/Tacoma Intl
Sun 11/1
12:10 am-1:20 pm
1 stop20h 10m
Osaka Kansai Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$460
SeattleOsaka
SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl
SEAKIX
Seattle/Tacoma Intl
Sat 2/27
12:10 am-1:20 pm
1 stop20h 10m
Osaka Kansai Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$460
SeattleKobe
SEA Seattle/Tacoma Intl - UKB Kobe
SEAUKB
Seattle/Tacoma Intl
Sun 2/28
3:45 pm-8:00 am
1 stop23h 15m
Kobe
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$473
SeattleKobe
SEA Seattle/Tacoma Intl - UKB Kobe
SEAUKB
Seattle/Tacoma Intl
Mon 11/2
3:40 pm-8:00 am
1 stop23h 20m
Kobe
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$473
Quickest round-trip
SeattleKobe
SEA Seattle/Tacoma Intl - UKB Kobe
SEAUKB
Seattle/Tacoma Intl
Tue 10/20
4:30 pm-9:45 pm
1 stop13h 15m
Kobe
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$473
SeattleOsaka
SEA Seattle/Tacoma Intl - ITM Osaka Itami
SEAITM
Seattle/Tacoma Intl
Sun 2/28
3:45 pm-8:10 am
1 stop23h 25m
Osaka Itami
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$474
SeattleOsaka
SEA Seattle/Tacoma Intl - ITM Osaka Itami
SEAITM
Seattle/Tacoma Intl
Mon 10/19
4:30 pm-7:25 am
1 stop22h 55m
Osaka Itami
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$474
SeattleOsaka
SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl
SEAKIX
Seattle/Tacoma Intl
Mon 10/26
6:00 am-4:45 pm
2 stops18h 45m
Osaka Kansai Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$482
Showing 1-10 of 52 resultsSorted by cheapest first
Compare providers for flights from Seattle to Osaka
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Osaka in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Osaka flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-Osaka flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Seattle-Osaka flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Osaka flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Osaka flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Osaka
Have a flexible travel schedule? Discover the best time to fly to Osaka from Seattle with our price prediction graph.
SEA-OSA
SEA-KIX
SEA-UKB
SEA-ITM
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 Osaka
SEA-OSA
SEA-KIX
SEA-UKB
SEA-ITM
What is the cheapest month to book a flight from Seattle to Osaka?
Currently, January is the cheapest month in which you can book a flight from Seattle to Osaka (average of $727). Flying from Seattle to Osaka in December is currently the most expensive (average of $1,379). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Seattle to Osaka?
Airfare is typical for this route at the moment.
Seattle to Osaka flights typically cost between $806 and $1,111 in October.The cheapest round-trip price found within the last 5 days was $854 on Cathay Pacific (Oct 13-Oct 27).
What’s the top layover airport for flights from Seattle to Osaka?
Share of 1-stop round-trip flights from Seattle to Osaka chosen by Cheapflights users in the past 12 months, using the same layover each way.
Honolulu (HNL) – chosen by Cheapflights users on 33% of 1-stop itineraries from Seattle to Osaka on Cheapflights.
What’s the cheapest layover airport for flights from Seattle to Osaka?
Average round-trip fare for 1-stop flights from Seattle to Osaka, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Honolulu (HNL) is the most affordable 1-stop option, with an average round-trip price of $370.
What’s the fastest layover option from Seattle to Osaka?
Shortest average travel time for 1-stop one-way flights from Seattle to Osaka, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Tokyo (HND) have the shortest average one-way travel time for 1-stop routes: 13h 35m.
Which airport typically offers the quickest layover for flights from Seattle to Osaka?
Average layover duration for 1-stop one-way flights from Seattle to Osaka, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Tokyo (HND) offer the fastest connection on this route, with an average layover time of 2h 03m.
How far ahead should I book a flight from Seattle to Osaka?
The price you pay for your flight from Seattle to Osaka may vary depending on when you book. For the best chance of a lower fare, look to book 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Osaka
Get insights into the airlines that provide service to Osaka. 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 Osaka. Reviews last updated September 29, 2026.
Get a feel of what it's like to fly with Korean Air,Japan Airlines, andANA from Seattle to Osaka by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.5
Crew
8.7
Entertainment
8.2
Comfort
8.3
Overall
8.4
Food
8.1
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Boarding
8.5
Crew
8.7
Entertainment
8.2
Comfort
8.3
Overall
8.4
Food
8.1
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Boarding
8.5
Crew
8.7
Entertainment
8.2
Comfort
8.3
Overall
8.4
Food
8.1
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Boarding
8.5
Crew
8.7
Entertainment
8.2
Comfort
8.3
Overall
8.4
Food
8.1
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Boarding
8.5
Crew
8.7
Entertainment
8.2
Comfort
8.3
Overall
8.4
Food
8.1
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Boarding
8.5
Crew
8.7
Entertainment
8.2
Comfort
8.3
Overall
8.4
Food
8.1
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Related info for your journey
Find useful and relevant information for your journey from Seattle to Osaka. 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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Complete your trip
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Other flights to Osaka
Explore flights to Osaka departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 29, 2026.
Seattle and Osaka flights
Browse other Seattle and Osaka flight options. Last updated on September 29, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on September 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Seattle to Osaka
Discover the top 5 airlines that operate flights from Seattle to Osaka. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$565 | Average$672 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$649 | Average$864 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$708 | Average$994 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$862 | Average$1,109 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$915 | Average$947 | FlexibilityNo cancel fee | On-time70% |