$453+ Cheap flights from Boston (BOS) to Osaka (OSA)
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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — OSA
Sep 22 — Sep 291
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Osaka with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Osaka
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Cheapest flights from Boston to OsakaExplore the most affordable flight options available from Boston to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 23, 2026.
Explore the most affordable flight options available from Boston to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 23, 2026.
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:55 pm -
1 stop39h 50m
Thu 9/1711:55 am -
1 stop35h 15m
Deal found 8/19![Korean Air logo]()
$1,055
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:45 am -
2 stops25h 00m
Tue 9/297:05 am -
2 stops20h 50m
Deal found 8/19![ANA logo]()
$1,098
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:55 pm -
1 stop33h 00m
Sat 10/36:55 pm -
1 stop28h 15m
Deal found 8/19![Korean Air logo]()
$1,105
This FlightHub deal was found by Cheapflights users on 8/20. 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.
Mon 8/319:30 am -
2 stops23h 15m
Wed 9/97:05 am -
2 stops20h 45m
Deal found 8/20![ANA logo]()
$1,112
This Expedia deal was found by Cheapflights users on 8/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:45 am -
2 stops35h 05m
Fri 9/187:05 am -
2 stops29h 25m
Deal found 8/21![ANA logo]()
$1,130
This Travelocity deal was found by Cheapflights users on 8/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:30 am -
2 stops23h 15m
Thu 9/107:05 am -
2 stops20h 45m
Deal found 8/20![ANA logo]()
$1,139
This KAYAK deal was found by Cheapflights users on 8/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:45 am -
1 stop42h 05m
Mon 9/284:55 pm -
1 stop19h 02m
Deal found 8/19![ANA logo]()
$1,144
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:55 pm -
1 stop33h 00m
Sat 10/36:55 pm -
1 stop28h 15m
Deal found 8/19![Korean Air logo]()
$1,144
This KAYAK deal was found by Cheapflights users on 8/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:30 am -
2 stops19h 40m
Sun 9/277:30 am -
2 stops28h 27m
Deal found 8/19![ANA logo]()
$1,144
This Vliegwinkel deal was found by Cheapflights users on 8/19. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:00 am -
1 stop22h 45m
Tue 9/89:00 pm -
1 stop34h 10m
Deal found 8/19![Japan Airlines logo]()
$1,149
This Gotogate deal was found by Cheapflights users on 8/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:00 am -
2 stops20h 55m
Fri 9/118:00 am -
2 stops21h 27m
Deal found 8/20![ANA logo]()
$1,149
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:30 am -
2 stops26h 15m
Sat 10/36:15 pm -
1 stop28h 55m
Deal found 8/19![Korean Air logo]()
$1,151
Best flights from Boston to OsakaDiscover carefully curated flight deals from Boston to Osaka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.
Discover carefully curated flight deals from Boston to Osaka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.
This Korean Air deal was found by Cheapflights users on 8/22. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:55 pm -
1 stop33h 00m
Thu 9/176:55 pm -
1 stop28h 15m
Deal found 8/22![Korean Air logo]()
$1,055
This FlightHub deal was found by Cheapflights users on 8/22. 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.
Sun 9/276:00 am -
2 stops36h 35m
Sun 10/116:30 pm -
1 stop36h 40m
Deal found 8/22![Japan Airlines logo]()
$1,173
This Flysmarter deal was found by Cheapflights users on 8/19. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:30 am -
2 stops19h 40m
Tue 9/82:00 pm -
2 stops21h 59m
Deal found 8/19![ANA logo]()
$1,179
This American Airlines deal was found by Cheapflights users on 8/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:00 am -
2 stops22h 45m
Fri 9/119:20 am -
1 stop21h 50m
Deal found 8/21![Multiple Airlines logo]()
$1,272
This United Airlines deal was found by Cheapflights users on 8/23. 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.
Sat 10/35:01 pm -
2 stops32h 49m
Mon 10/124:55 pm -
2 stops27h 42m
Deal found 8/23![United Airlines logo]()
$1,333
This Turkish Airlines deal was found by Cheapflights users on 8/22. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/168:00 pm -
1 stop32h 55m
Mon 12/2810:45 pm -
1 stop33h 20m
Deal found 8/22![Turkish Airlines logo]()
$2,233
This China Airlines deal was found by Cheapflights users on 8/19. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:59 pm -
2 stops28h 01m
Sun 10/187:05 pm -
2 stops33h 07m
Deal found 8/19![Multiple Airlines logo]()
$1,341
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:21 pm -
2 stops29h 29m
Fri 9/259:20 am -
3 stops27h 39m
Deal found 8/20![United Airlines logo]()
$1,361
This Ovago deal was found by Cheapflights users on 8/21. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:01 pm -
2 stops34h 09m
Fri 11/271:00 pm -
2 stops22h 41m
Deal found 8/21![ANA logo]()
$1,415
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:55 pm -
1 stop33h 00m
Mon 9/286:55 pm -
1 stop28h 15m
Deal found 8/19![Korean Air logo]()
$1,428
This China Airlines deal was found by Cheapflights users on 8/22. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:59 pm -
2 stops28h 01m
Sun 10/257:00 pm -
2 stops25h 26m
Deal found 8/22![Multiple Airlines logo]()
$1,358
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Sat 2/138:15 pm -
1 stop30h 30m
Sat 2/206:35 pm -
1 stop27h 48m
Deal found 8/19![United Airlines logo]()
$1,382
This Expedia deal was found by Cheapflights users on 8/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/169:30 am -
2 stops20h 40m
Sun 11/18:20 pm -
2 stops30h 26m
Deal found 8/20![ANA logo]()
$1,424
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:55 pm -
1 stop33h 00m
Tue 9/296:55 pm -
1 stop28h 15m
Deal found 8/19![Korean Air logo]()
$1,428
This FlightHub deal was found by Cheapflights users on 8/22. 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.
Sun 10/186:28 am -
2 stops36h 07m
Sun 11/18:10 pm -
1 stop35h 15m
Deal found 8/22![Japan Airlines logo]()
$1,574
This China Airlines deal was found by Cheapflights users on 8/20. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:30 pm -
2 stops30h 20m
Fri 10/307:00 pm -
2 stops32h 31m
Deal found 8/20![Multiple Airlines logo]()
$1,373
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:55 pm -
1 stop33h 00m
Thu 10/16:55 pm -
1 stop28h 15m
Deal found 8/19![Korean Air logo]()
$1,428
This United Airlines deal was found by Cheapflights users on 8/22. 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.
Thu 12/244:50 pm -
2 stops33h 55m
Thu 1/143:20 pm -
3 stops22h 34m
Deal found 8/22![United Airlines logo]()
$1,507
This China Airlines deal was found by Cheapflights users on 8/19. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:20 pm -
2 stops28h 30m
Mon 10/122:00 pm -
2 stops30h 26m
Deal found 8/19![Multiple Airlines logo]()
$1,388
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:55 pm -
1 stop33h 00m
Wed 9/306:55 pm -
1 stop28h 15m
Deal found 8/19![Korean Air logo]()
$1,428
This Cheapflightsfares deal was found by Cheapflights users on 8/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:01 am -
2 stops22h 54m
Fri 10/307:05 am -
2 stops22h 06m
Deal found 8/23![ANA logo]()
$1,631
This EVA Air deal was found by Cheapflights users on 8/20. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:30 pm -
2 stops25h 30m
Fri 9/117:00 pm -
2 stops25h 39m
Deal found 8/20![Multiple Airlines logo]()
$1,401
This United Airlines deal was found by Cheapflights users on 8/23. 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.
Sat 10/106:43 pm -
2 stops31h 07m
Sat 10/244:55 pm -
1 stop19h 02m
Deal found 8/23![United Airlines logo]()
$1,607
This EVA Air deal was found by Cheapflights users on 8/23. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:20 pm -
2 stops25h 40m
Sat 10/247:00 pm -
2 stops25h 26m
Deal found 8/23![Multiple Airlines logo]()
$1,441
This United Airlines deal was found by Cheapflights users on 8/22. 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 10/67:38 am -
2 stops20h 27m
Tue 10/1312:55 pm -
2 stops22h 04m
Deal found 8/22![United Airlines logo]()
$1,609
This EVA Air deal was found by Cheapflights users on 8/21. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:59 pm -
2 stops26h 01m
Sun 10/187:00 pm -
2 stops26h 19m
Deal found 8/21![Multiple Airlines logo]()
$1,441
This United Airlines deal was found by Cheapflights users on 8/21. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:38 am -
2 stops20h 27m
Tue 10/2012:55 pm -
3 stops24h 04m
Deal found 8/21![United Airlines logo]()
$1,609
This Korean Air deal was found by Cheapflights users on 8/23. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:00 am -
1 stop33h 10m
Wed 11/116:40 pm -
1 stop28h 00m
Deal found 8/23![Korean Air logo]()
$1,952
This FlightHub deal was found by Cheapflights users on 8/23. 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.
Fri 10/236:40 pm -
2 stops34h 20m
Fri 10/3011:00 am -
2 stops36h 41m
Deal found 8/23![Multiple Airlines logo]()
$1,538
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:12 am -
2 stops23h 38m
Sat 10/35:00 pm -
2 stops43h 59m
Deal found 8/19![Multiple Airlines logo]()
$1,669
Last-minute flights from Boston to OsakaDiscover last-minute flight deals from Boston to Osaka. Data last updated August 23, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Osaka. Data last updated August 23, 2026 and is based on user searches.
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:30 am -
2 stops26h 15m
Sat 10/36:15 pm -
1 stop28h 55m
Deal found 8/19![Korean Air logo]()
$1,151
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:45 am -
2 stops25h 00m
Tue 9/297:05 am -
2 stops20h 50m
Deal found 8/19![ANA logo]()
$1,098
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:55 pm -
1 stop33h 00m
Sat 10/36:55 pm -
1 stop28h 15m
Deal found 8/19![Korean Air logo]()
$1,105
This KAYAK deal was found by Cheapflights users on 8/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:45 am -
1 stop42h 05m
Mon 9/284:55 pm -
1 stop19h 02m
Deal found 8/19![ANA logo]()
$1,144
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:55 pm -
1 stop33h 00m
Sat 10/36:55 pm -
1 stop28h 15m
Deal found 8/19![Korean Air logo]()
$1,144
This KAYAK deal was found by Cheapflights users on 8/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:30 am -
2 stops19h 40m
Sun 9/277:30 am -
2 stops28h 27m
Deal found 8/19![ANA logo]()
$1,144
This Gotogate deal was found by Cheapflights users on 8/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:00 am -
2 stops20h 55m
Fri 9/118:00 am -
2 stops21h 27m
Deal found 8/20![ANA logo]()
$1,149
This FlightHub deal was found by Cheapflights users on 8/20. 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.
Mon 8/319:30 am -
2 stops23h 15m
Wed 9/97:05 am -
2 stops20h 45m
Deal found 8/20![ANA logo]()
$1,112
This Travelocity deal was found by Cheapflights users on 8/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:30 am -
2 stops23h 15m
Thu 9/107:05 am -
2 stops20h 45m
Deal found 8/20![ANA logo]()
$1,139
This Vliegwinkel deal was found by Cheapflights users on 8/19. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:00 am -
1 stop22h 45m
Tue 9/89:00 pm -
1 stop34h 10m
Deal found 8/19![Japan Airlines logo]()
$1,149
This Expedia deal was found by Cheapflights users on 8/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:45 am -
2 stops35h 05m
Fri 9/187:05 am -
2 stops29h 25m
Deal found 8/21![ANA logo]()
$1,130
This Korean Air deal was found by Cheapflights users on 8/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:55 pm -
1 stop39h 50m
Thu 9/1711:55 am -
1 stop35h 15m
Deal found 8/19![Korean Air logo]()
$1,055
One-way flights from Boston to OsakaSearch for one-way flight options from Boston to Osaka. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.
Search for one-way flight options from Boston to Osaka. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.
This SmartFares deal was found by Cheapflights users on 8/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:55 pm -
1 stop23h 40m
Deal found 8/19![Hainan Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Mon 9/146:30 pm -
3 stops55h 30m
Deal found 8/21![Multiple Airlines logo]()
$486
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Tue 9/1512:52 pm -
3 stops42h 58m
Deal found 8/19![Multiple Airlines logo]()
$521
This Expedia deal was found by Cheapflights users on 8/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:55 pm -
1 stop23h 40m
Deal found 8/19![Hainan Airlines logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 1/1010:55 pm -
2 stops26h 30m
Deal found 8/23![Multiple Airlines logo]()
$554
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Sun 11/812:39 pm -
3 stops54h 06m
Deal found 8/19![Multiple Airlines logo]()
$569
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Wed 10/2111:05 am -
3 stops38h 05m
Deal found 8/19![Multiple Airlines logo]()
$581
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Tue 9/1512:52 pm -
3 stops41h 03m
Deal found 8/19![Multiple Airlines logo]()
$588
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 10/2012:57 pm -
3 stops42h 53m
Deal found 8/23![Multiple Airlines logo]()
$592
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 11/79:03 am -
3 stops46h 47m
Deal found 8/21![Multiple Airlines logo]()
$609
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Sun 11/812:39 pm -
3 stops41h 11m
Deal found 8/19![Multiple Airlines logo]()
$645
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 11/79:03 am -
2 stops32h 27m
Deal found 8/21![Multiple Airlines logo]()
$655
Find flight deals from Boston to Osaka
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 August 23, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,055 (Korean Air) |
One-way from | $453 (SmartFares) |
Popular in | December |
Cheapest in | February |
Average price | $2,272 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 August 23, 2026.
Use the filters below to find and compare flights from Boston to Osaka that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonKobe
BOS Boston Logan Intl - UKB Kobe
BOSUKB
Boston Logan Intl
Sun 9/6
12:55 pm-10:55 am
1 stop33h 00m
Kobe
Thu 9/17
6:55 pm-10:10 am
1 stop28h 15m
$1,055
BostonOsaka
BOS Boston Logan Intl - ITM Osaka Itami
BOSITM
Boston Logan Intl
Sun 9/27
6:00 am-7:35 am
2 stops36h 35m
Osaka Itami
Sun 10/11
6:30 pm-6:10 pm
1 stop36h 40m
$1,173
Quickest round-trip
BostonOsaka
BOS Boston Logan Intl - ITM Osaka Itami
BOSITM
Boston Logan Intl
Fri 9/4
9:30 am-6:10 pm
2 stops19h 40m
Osaka Itami
Tue 9/8
2:00 pm-10:59 pm
2 stops21h 59m
$1,179
BostonOsaka
BOS Boston Logan Intl - ITM Osaka Itami
BOSITM
Boston Logan Intl
Thu 8/27
6:00 am-5:45 pm
2 stops22h 45m
Osaka Itami
Fri 9/11
9:20 am-6:10 pm
1 stop21h 50m
$1,272
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Sat 10/3
5:01 pm-2:50 pm
2 stops32h 49m
Osaka Kansai Intl
Mon 10/12
4:55 pm-7:37 am
2 stops27h 42m
$1,333
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Sun 10/11
6:59 pm-12:00 pm
2 stops28h 01m
Osaka Kansai Intl
Sun 10/18
7:05 pm-3:12 pm
2 stops33h 07m
$1,341
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Sun 10/11
6:59 pm-12:00 pm
2 stops28h 01m
Osaka Kansai Intl
Sun 10/25
7:00 pm-7:26 am
2 stops25h 26m
$1,358
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Sat 9/12
8:21 pm-2:50 pm
2 stops29h 29m
Osaka Kansai Intl
Fri 9/25
9:20 am-11:59 pm
3 stops27h 39m
$1,361
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Mon 10/19
5:30 pm-12:50 pm
2 stops30h 20m
Osaka Kansai Intl
Fri 10/30
7:00 pm-2:31 pm
2 stops32h 31m
$1,373
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Sat 2/13
8:15 pm-4:45 pm
1 stop30h 30m
Osaka Kansai Intl
Sat 2/20
6:35 pm-8:23 am
1 stop27h 48m
$1,382
Showing 1-10 of 60 resultsSorted by cheapest first
Compare providers for flights from Boston 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 Boston to Osaka in August.
| 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 Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Osaka flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Boston-Osaka flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Boston-Osaka flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-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 Boston-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 Boston to Osaka
Have a flexible travel schedule? Discover the best time to fly to Osaka from Boston with our price prediction graph.
BOS-OSA
BOS-KIX
BOS-ITM
BOS-UKB
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 Boston to Osaka
BOS-OSA
BOS-KIX
BOS-ITM
BOS-UKB
What is the cheapest month to book a flight from Boston to Osaka?
Currently, February is the cheapest month in which you can book a flight from Boston to Osaka (average of $1,215). Flying from Boston to Osaka in December is currently the most expensive (average of $2,225). 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 Boston to Osaka?
Airfare is below average for this route at the moment.
Boston to Osaka flights typically cost between $1,337 and $1,784 in September.The cheapest round-trip price found within the last 5 days was $1,055 on Korean Air (Sep 9-Sep 17).
How far ahead should I book a flight from Boston to Osaka?
Booking 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Osaka. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 August 23, 2026.
Peruse reviews from past customers who have flown with Japan Airlines,ANA, andCathay Pacific from Boston to Osaka to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Comfort
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Comfort
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Comfort
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Comfort
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Comfort
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Comfort
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Related info for your journey
Find useful and relevant information for your journey from Boston to Osaka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Osaka?
Book flights to Osaka if you plan to visit one of these locationsNara
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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 August 23, 2026.
Boston and Osaka flights
Browse other Boston and Osaka flight options. Last updated on August 23, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on August 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Boston to Osaka
Discover the top 5 airlines that operate flights from Boston 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 August 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$787 | Average$1,279 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$796 | Average$1,484 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$833 | Average$1,289 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$920 | Average$1,460 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,495 | Average$1,846 | FlexibilityNo cancel fee | On-time79% |