$506+ Cheap flights from Boston (BOS) 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — OSA
Oct 10 — Oct 171
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
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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 September 10, 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 September 10, 2026.
This Justfly.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/137:46 am -
2 stops22h 09m
Fri 9/252:00 pm -
2 stops22h 24m
Deal found 9/9![ANA logo]()
$835
This Cheapflightsfares deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 12/295:47 am -
2 stops24h 08m
Tue 1/122:40 pm -
1 stop16h 55m
Deal found 9/8![Japan Airlines logo]()
$998
This Orbitz deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:30 am -
2 stops22h 10m
Mon 12/143:20 pm -
2 stops21h 17m
Deal found 9/8![Air Canada logo]()
$1,000
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:30 am -
2 stops22h 10m
Mon 12/143:20 pm -
2 stops21h 17m
Deal found 9/9![Multiple Airlines logo]()
$1,001
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/131:00 pm -
1 stop17h 50m
Fri 9/252:35 pm -
1 stop16h 35m
Deal found 9/9![Japan Airlines logo]()
$1,003
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/136:30 am -
1 stop23h 15m
Fri 9/256:40 am -
1 stop24h 30m
Deal found 9/9![Japan Airlines logo]()
$1,004
This SmartFares deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 9/1312:55 pm -
1 stop20h 45m
Mon 9/282:15 am -
1 stop20h 55m
Deal found 9/6![Korean Air logo]()
$1,008
This Cheapflightsfares deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 12/295:47 am -
2 stops26h 33m
Tue 1/126:50 am -
2 stops22h 43m
Deal found 9/8![Japan Airlines logo]()
$1,011
This Cheapflightsfares deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 12/285:47 am -
2 stops26h 33m
Sat 1/169:10 pm -
2 stops33h 54m
Deal found 9/5![Japan Airlines logo]()
$1,012
This Cheapflightsfares deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 9/156:30 am -
1 stop23h 15m
Wed 11/117:25 am -
1 stop24h 00m
Deal found 9/6![Japan Airlines logo]()
$1,017
This Cheapflightsfares deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 11/312:00 pm -
1 stop17h 55m
Thu 11/122:40 pm -
1 stop16h 45m
Deal found 9/7![Japan Airlines logo]()
$1,017
This Cheapflightsfares deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 11/312:00 pm -
1 stop18h 25m
Wed 11/117:25 am -
1 stop24h 00m
Deal found 9/7![Japan Airlines logo]()
$1,019
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 September 10, 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 September 10, 2026.
This Japan Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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.
Thu 2/47:11 am -
2 stops23h 14m
Mon 2/82:40 pm -
1 stop16h 55m
Deal found 9/5![Japan Airlines logo]()
$1,028
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 2/86:35 pm -
2 stops32h 10m
Fri 2/126:35 pm -
1 stop20h 30m
Deal found 9/9![United Airlines logo]()
$1,031
This China Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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.
Fri 3/53:45 pm -
2 stops31h 35m
Sun 3/147:00 pm -
2 stops26h 02m
Deal found 9/8![Multiple Airlines logo]()
$1,272
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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.
Sun 10/47:45 am -
2 stops23h 05m
Tue 10/137:30 am -
2 stops22h 28m
Deal found 9/5![American Airlines logo]()
$1,361
This Qatar Airways deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/48:40 pm -
2 stops45h 50m
Thu 1/215:55 pm -
1 stop34h 00m
Deal found 9/5![Qatar Airways logo]()
$1,402
This Korean Air deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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.
Tue 11/1011:10 am -
1 stop33h 00m
Mon 11/1611:10 am -
1 stop35h 40m
Deal found 9/7![Korean Air logo]()
$1,433
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 2/46:00 am -
2 stops22h 10m
Mon 2/82:30 pm -
2 stops21h 20m
Deal found 9/6![United Airlines logo]()
$1,031
This Japan Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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.
Mon 2/812:00 pm -
1 stop17h 55m
Fri 2/122:40 pm -
1 stop16h 55m
Deal found 9/7![Japan Airlines logo]()
$1,068
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 2/86:00 am -
2 stops22h 10m
Fri 2/122:30 pm -
2 stops20h 58m
Deal found 9/8![United Airlines logo]()
$1,035
This Japan Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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.
Mon 12/285:23 am -
2 stops25h 02m
Thu 1/141:25 pm -
1 stop18h 10m
Deal found 9/8![Japan Airlines logo]()
$1,072
This China Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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.
Fri 2/263:45 pm -
2 stops31h 35m
Sun 3/712:45 pm -
2 stops30h 45m
Deal found 9/7![Multiple Airlines logo]()
$1,278
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 1/178:30 pm -
2 stops33h 00m
Fri 1/293:20 pm -
3 stops22h 29m
Deal found 9/7![United Airlines logo]()
$1,079
This China Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 3/75:22 pm -
2 stops28h 13m
Sat 3/272:30 pm -
2 stops30h 32m
Deal found 9/9![Multiple Airlines logo]()
$1,290
This Korean Air deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 11/1211:10 am -
1 stop40h 30m
Wed 11/1811:10 am -
1 stop35h 40m
Deal found 9/5![Korean Air logo]()
$1,433
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 2/136:40 pm -
2 stops32h 05m
Sat 2/203:20 pm -
2 stops32h 04m
Deal found 9/6![United Airlines logo]()
$1,083
This Japan Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Thu 11/2612:00 pm -
1 stop36h 00m
Sun 12/136:50 am -
1 stop24h 35m
Deal found 9/9![Japan Airlines logo]()
$1,292
This Korean Air deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 11/1611:10 am -
1 stop40h 30m
Mon 11/236:40 pm -
1 stop28h 10m
Deal found 9/8![Korean Air logo]()
$1,433
This China Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 1/55:00 pm -
2 stops28h 35m
Thu 1/212:30 pm -
2 stops29h 10m
Deal found 9/5![Multiple Airlines logo]()
$1,361
This Korean Air deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Tue 11/2411:10 am -
1 stop33h 00m
Mon 12/146:40 pm -
1 stop28h 10m
Deal found 9/9![Korean Air logo]()
$1,434
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 11/303:41 pm -
2 stops36h 29m
Mon 12/282:30 pm -
2 stops24h 48m
Deal found 9/6![United Airlines logo]()
$1,237
This China Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/117:20 pm -
2 stops27h 40m
Sun 10/187:05 pm -
2 stops25h 21m
Deal found 9/9![Multiple Airlines logo]()
$1,380
This Korean Air deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/2311:10 am -
1 stop33h 35m
Fri 12/112:15 am -
1 stop20h 35m
Deal found 9/9![Korean Air logo]()
$1,436
This Cheapflightsfares deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 10/278:23 am -
2 stops22h 32m
Sat 11/72:40 pm -
1 stop16h 45m
Deal found 9/5![Japan Airlines logo]()
$1,436
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 2/115:30 am -
1 stop21h 15m
Sat 2/276:35 pm -
1 stop20h 30m
Deal found 9/8![United Airlines logo]()
$1,267
This Korean Air deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/2211:00 am -
2 stops33h 10m
Mon 12/146:40 pm -
1 stop28h 10m
Deal found 9/9![Korean Air logo]()
$1,439
This Japan Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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.
Thu 12/3112:00 pm -
1 stop17h 55m
Thu 1/142:40 pm -
1 stop16h 55m
Deal found 9/8![Japan Airlines logo]()
$1,459
This EVA Air deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 10/56:40 pm -
2 stops26h 20m
Mon 10/127:00 pm -
2 stops25h 26m
Deal found 9/6![Multiple Airlines logo]()
$1,500
This Korean Air deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/263:00 pm -
2 stops36h 40m
Fri 12/116:40 pm -
1 stop28h 10m
Deal found 9/9![Korean Air logo]()
$1,439
This Japan Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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.
Fri 1/112:00 pm -
1 stop17h 55m
Thu 1/142:40 pm -
1 stop16h 55m
Deal found 9/8![Japan Airlines logo]()
$1,506
This Korean Air deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/235:05 pm -
2 stops34h 35m
Mon 12/146:40 pm -
1 stop28h 10m
Deal found 9/9![Korean Air logo]()
$1,439
Last-minute flights from Boston to OsakaDiscover last-minute flight deals from Boston to Osaka. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Osaka. Data last updated September 10, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:00 pm -
1 stop17h 50m
Fri 9/252:35 pm -
1 stop16h 35m
Deal found 9/5![Japan Airlines logo]()
$1,024
This Cheapflightsfares deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:30 am -
1 stop23h 15m
Fri 9/257:35 am -
1 stop23h 35m
Deal found 9/5![Japan Airlines logo]()
$1,025
This Cheapflightsfares deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:30 pm -
2 stops31h 05m
Sun 9/202:35 pm -
1 stop16h 35m
Deal found 9/8![Japan Airlines logo]()
$1,055
This Justfly.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/137:46 am -
2 stops22h 09m
Fri 9/252:00 pm -
2 stops22h 24m
Deal found 9/9![ANA logo]()
$835
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/131:00 pm -
1 stop17h 50m
Fri 9/252:35 pm -
1 stop16h 35m
Deal found 9/9![Japan Airlines logo]()
$1,003
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/136:30 am -
1 stop23h 15m
Fri 9/256:40 am -
1 stop24h 30m
Deal found 9/9![Japan Airlines logo]()
$1,004
This SmartFares deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 9/1312:55 pm -
1 stop20h 45m
Mon 9/282:15 am -
1 stop20h 55m
Deal found 9/6![Korean Air logo]()
$1,008
This lastminute.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am -
2 stops21h 35m
Tue 9/292:35 pm -
1 stop16h 35m
Deal found 9/6![Japan Airlines logo]()
$1,020
This lastminute.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:46 am -
2 stops22h 09m
Tue 9/297:05 am -
2 stops20h 02m
Deal found 9/6![ANA logo]()
$1,027
This lastminute.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am -
2 stops24h 30m
Sun 9/278:05 pm -
2 stops29h 34m
Deal found 9/5![Japan Airlines logo]()
$1,035
This SmartFares deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 9/137:46 am -
2 stops23h 04m
Tue 9/294:55 pm -
1 stop19h 02m
Deal found 9/6![ANA logo]()
$1,041
This Cheapflightsfares deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 9/156:30 am -
1 stop23h 15m
Wed 11/117:25 am -
1 stop24h 00m
Deal found 9/6![Japan Airlines logo]()
$1,017
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 September 10, 2026.
Search for one-way flight options from Boston to Osaka. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/211:00 pm -
1 stop17h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Japan Airlines logo]()
$506
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/217:00 am -
2 stops25h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Japan Airlines logo]()
$512
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/289:50 am -
3 stops33h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$518
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 11/179:50 am -
3 stops42h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$538
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 11/235:25 pm -
3 stops49h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$550
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 11/225:25 pm -
3 stops49h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$551
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 11/259:50 am -
3 stops44h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$565
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 11/249:50 am -
3 stops42h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$567
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 11/179:50 am -
3 stops43h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$583
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/216:30 pm -
3 stops50h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$608
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 stops41h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$610
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 2/97:00 am -
3 stops38h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$615
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $932 (Air Canada) |
One-way from | $506 (Cheapflightsfares) |
Popular in | August |
Cheapest in | February |
Average price | $1,205 |
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 September 10, 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
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Wed 10/21
6:30 pm-10:05 am
3 stops50h 35m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$608
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Sat 2/13
6:35 pm-8:25 pm
2 stops35h 50m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$657
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Mon 11/9
1:32 pm-5:40 pm
3 stops62h 08m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$677
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Fri 3/5
5:45 pm-9:15 am
3 stops49h 30m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$679
Quickest round-trip
BostonOsaka
BOS Boston Logan Intl - ITM Osaka Itami
BOSITM
Boston Logan Intl
Mon 9/21
1:00 pm-7:50 pm
1 stop17h 50m
Osaka Itami
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$692
BostonOsaka
BOS Boston Logan Intl - ITM Osaka Itami
BOSITM
Boston Logan Intl
Tue 11/17
12:00 pm-7:55 pm
1 stop17h 55m
Osaka Itami
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$692
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Mon 9/21
7:00 am-9:55 pm
2 stops25h 55m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$698
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Tue 11/17
12:00 pm-1:30 pm
1 stop35h 30m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$707
BostonKobe
BOS Boston Logan Intl - UKB Kobe
BOSUKB
Boston Logan Intl
Mon 11/9
6:20 pm-10:00 am
2 stops25h 40m
Kobe
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$715
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Mon 9/21
6:00 am-2:50 pm
1 stop19h 50m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$723
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 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 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Osaka flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for 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-ITM
BOS-KIX
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-ITM
BOS-KIX
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 $1,096). Flying from Boston to Osaka in August is currently the most expensive (average of $1,758). 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 $1,139 and $1,296 in January.The cheapest round-trip price found within the last 5 days was $932 on Multiple Airlines (Jan 12-Jan 26).
How far ahead should I book a flight from Boston to Osaka?
Booking 48 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 September 10, 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.
Comfort
8.2
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Comfort
8.2
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Comfort
8.2
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Comfort
8.2
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Comfort
8.2
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Comfort
8.2
Entertainment
7.8
Food
7.7
Overall
8.3
Boarding
8.4
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 September 10, 2026.
Boston and Osaka flights
Browse other Boston and Osaka flight options. Last updated on September 10, 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 September 10, 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 September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$787 | Average$1,361 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$796 | Average$1,512 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$920 | Average$1,393 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$941 | Average$1,291 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$1,495 | Average$1,846 | FlexibilityNo cancel fee | On-time79% |