$466+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — OSA
May 1 — May 81
Round-trip
1 adult, Economy
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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 April 1, 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 April 1, 2026.
This FlightHub deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:40 pm
BOS
- KIX
2 stops29h 05m
Hainan Airlines
Sat 9/192:20 pm
KIX
- BOS
1 stop39h 20m
Hainan Airlines
Deal found 3/31![Hainan Airlines logo]()
$933
This KAYAK deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 9/166:40 pm
BOS
- KIX
2 stops29h 05m
Hainan Airlines
Sat 9/192:20 pm
KIX
- BOS
1 stop39h 20m
Hainan Airlines
Deal found 3/30![Hainan Airlines logo]()
$963
This KAYAK deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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.
Mon 9/141:45 am
BOS
- KIX
1 stop24h 25m
Cathay Pacific
Thu 9/249:05 am
KIX
- BOS
1 stop27h 00m
Cathay Pacific
Deal found 3/30![Cathay Pacific logo]()
$1,091
This FlightHub deal was found by Cheapflights users on 3/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:40 pm
BOS
- KIX
2 stops28h 20m
Multiple Airlines
Thu 11/2612:45 pm
KIX
- BOS
2 stops33h 17m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$1,097
This KAYAK deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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.
Sun 9/131:45 am
BOS
- KIX
2 stops24h 05m
Cathay Pacific
Thu 9/249:05 am
KIX
- BOS
1 stop27h 00m
Cathay Pacific
Deal found 3/31![Cathay Pacific logo]()
$1,107
This KAYAK deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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.
Tue 9/151:45 am
BOS
- KIX
2 stops24h 05m
Cathay Pacific
Wed 9/234:15 pm
KIX
- BOS
2 stops43h 50m
Cathay Pacific
Deal found 3/30![Cathay Pacific logo]()
$1,123
This oojo deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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.
Wed 9/28:30 pm
BOS
- KIX
2 stops26h 30m
China Airlines
Sat 9/197:05 pm
KIX
- BOS
2 stops49h 52m
China Airlines
Deal found 3/31![China Airlines logo]()
$1,129
This FlightHub deal was found by Cheapflights users on 3/28. 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.
Tue 9/16:30 am
BOS
- KIX
2 stops41h 50m
Multiple Airlines
Thu 9/107:00 pm
KIX
- BOS
2 stops40h 27m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$1,134
This KAYAK deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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.
Tue 9/16:30 am
BOS
- KIX
2 stops40h 40m
China Eastern
Thu 9/109:30 am
KIX
- BOS
2 stops24h 41m
China Eastern
Deal found 3/30![China Eastern logo]()
$1,138
This Cathay Pacific deal was found by Cheapflights users on 3/28. 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.
Tue 10/201:45 am
BOS
- KIX
1 stop30h 30m
Cathay Pacific
Thu 11/129:25 am
KIX
- BOS
1 stop26h 35m
Cathay Pacific
Deal found 3/28![Cathay Pacific logo]()
$1,140
This KAYAK deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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.
Mon 8/311:45 am
BOS
- KIX
1 stop24h 25m
Cathay Pacific
Thu 9/105:35 pm
KIX
- BOS
1 stop42h 30m
Cathay Pacific
Deal found 3/30![Cathay Pacific logo]()
$1,141
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:59 pm
BOS
- UKB
2 stops25h 31m
Multiple Airlines
Tue 9/2211:40 am
UKB
- BOS
2 stops32h 59m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$1,214
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 April 1, 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 April 1, 2026.
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:55 pm
BOS
- KIX
1 stop18h 50m
Delta
Thu 6/42:15 am
KIX
- BOS
1 stop21h 05m
Delta
Deal found 3/29![Delta logo]()
$1,286
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/104:25 pm
BOS
- KIX
1 stop30h 25m
Etihad Airways
Wed 5/206:40 pm
KIX
- BOS
1 stop33h 00m
Etihad Airways
Deal found 3/27![Etihad Airways logo]()
$1,606
This WestJet deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:30 pm
BOS
- ITM
2 stops36h 15m
WestJet
Fri 6/262:35 pm
ITM
- BOS
2 stops40h 05m
WestJet
Deal found 3/31![WestJet logo]()
$1,716
This Cathay Pacific deal was found by Cheapflights users on 3/28. 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 4/275:54 pm
BOS
- KIX
3 stops31h 56m
Cathay Pacific
Fri 6/59:05 am
KIX
- BOS
2 stops27h 59m
Cathay Pacific
Deal found 3/28![Cathay Pacific logo]()
$1,779
This EVA Air deal was found by Cheapflights users on 3/29. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:20 pm
BOS
- UKB
2 stops26h 40m
Multiple Airlines
Tue 6/307:00 pm
UKB
- BOS
2 stops25h 40m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$1,791
This Korean Air deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/2712:55 pm
BOS
- UKB
1 stop33h 00m
Korean Air
Fri 6/511:55 am
UKB
- BOS
1 stop35h 25m
Korean Air
Deal found 3/30![Korean Air logo]()
$1,802
This Expedia deal was found by Cheapflights users on 3/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:45 am
BOS
- ITM
2 stops19h 10m
Air Canada
Mon 5/1812:55 pm
ITM
- BOS
2 stops22h 44m
Air Canada
Deal found 3/27![Air Canada logo]()
$1,920
This KLM deal was found by Cheapflights users on 3/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:10 pm
BOS
- KIX
1 stop27h 30m
KLM
Sat 6/611:25 am
KIX
- BOS
1 stop45h 10m
KLM
Deal found 3/27![KLM logo]()
$2,164
This United Airlines deal was found by Cheapflights users on 3/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/175:30 am
BOS
- KIX
2 stops25h 20m
United Airlines
Fri 4/244:55 pm
KIX
- BOS
1 stop37h 18m
United Airlines
Deal found 3/29![United Airlines logo]()
$2,221
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:30 am
BOS
- UKB
2 stops25h 15m
ANA
Wed 5/207:05 am
UKB
- BOS
2 stops20h 58m
ANA
Deal found 3/27![ANA logo]()
$2,414
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:37 am
BOS
- KIX
2 stops24h 08m
Delta
Thu 6/42:15 am
KIX
- BOS
2 stops26h 45m
Delta
Deal found 3/29![Delta logo]()
$1,300
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:11 pm
BOS
- UKB
2 stops25h 49m
Multiple Airlines
Wed 5/2011:00 am
UKB
- BOS
2 stops31h 00m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$1,818
This Air Canada deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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.
Fri 6/1910:40 am
BOS
- ITM
2 stops19h 15m
Air Canada
Fri 7/242:00 pm
ITM
- BOS
2 stops21h 38m
Air Canada
Deal found 3/30![Air Canada logo]()
$1,921
This Cathay Pacific deal was found by Cheapflights users on 3/27. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:54 pm
BOS
- KIX
3 stops31h 56m
Cathay Pacific
Wed 5/209:05 am
KIX
- BOS
2 stops27h 59m
Cathay Pacific
Deal found 3/27![Cathay Pacific logo]()
$1,965
This Korean Air deal was found by Cheapflights users on 3/28. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2812:55 pm
BOS
- KIX
1 stop20h 45m
Korean Air
Sat 7/1812:35 pm
KIX
- BOS
2 stops31h 51m
Korean Air
Deal found 3/28![Korean Air logo]()
$2,076
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:55 pm
BOS
- ITM
2 stops35h 00m
Air Canada
Wed 5/2012:55 pm
ITM
- BOS
2 stops22h 44m
Air Canada
Deal found 3/27![Air Canada logo]()
$1,957
This Cathay Pacific deal was found by Cheapflights users on 3/27. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:54 pm
BOS
- KIX
3 stops31h 56m
Cathay Pacific
Sat 6/64:15 pm
KIX
- BOS
2 stops43h 50m
Cathay Pacific
Deal found 3/27![Cathay Pacific logo]()
$2,032
This Alaska Airlines deal was found by Cheapflights users on 3/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:03 am
BOS
- ITM
2 stops23h 47m
Multiple Airlines
Thu 7/162:30 pm
ITM
- BOS
2 stops22h 29m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$2,050
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:48 am
BOS
- KIX
2 stops25h 52m
Delta
Wed 7/1512:35 pm
KIX
- BOS
2 stops24h 42m
Delta
Deal found 3/31![Delta logo]()
$2,186
This Alaska Airlines deal was found by Cheapflights users on 3/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:03 am
BOS
- ITM
2 stops23h 47m
Multiple Airlines
Tue 7/212:30 pm
ITM
- BOS
2 stops22h 29m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$2,050
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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.
Fri 5/225:50 am
BOS
- ITM
2 stops24h 05m
Air Canada
Wed 7/152:00 pm
ITM
- BOS
2 stops34h 52m
Air Canada
Deal found 3/31![Air Canada logo]()
$2,061
This Alaska Airlines deal was found by Cheapflights users on 3/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:03 am
BOS
- ITM
2 stops23h 42m
Multiple Airlines
Thu 7/162:30 pm
ITM
- BOS
2 stops22h 29m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$2,050
This Korean Air deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/712:55 pm
BOS
- UKB
1 stop39h 50m
Korean Air
Tue 4/286:55 pm
UKB
- BOS
1 stop28h 25m
Korean Air
Deal found 3/31![Korean Air logo]()
$2,689
This Alaska Airlines deal was found by Cheapflights users on 3/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/309:00 am
BOS
- ITM
2 stops21h 50m
Multiple Airlines
Fri 7/172:30 pm
ITM
- BOS
2 stops22h 29m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$2,050
This Korean Air deal was found by Cheapflights users on 3/29. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1012:55 pm
BOS
- UKB
1 stop39h 50m
Korean Air
Wed 5/2011:55 am
UKB
- BOS
1 stop35h 25m
Korean Air
Deal found 3/29![Korean Air logo]()
$2,702
This Alaska Airlines deal was found by Cheapflights users on 3/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:03 am
BOS
- ITM
2 stops23h 42m
Multiple Airlines
Tue 7/212:30 pm
ITM
- BOS
2 stops22h 29m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$2,050
This FlightHub deal was found by Cheapflights users on 3/28. 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.
Sat 5/307:11 pm
BOS
- UKB
2 stops25h 49m
Multiple Airlines
Wed 8/2611:00 am
UKB
- BOS
2 stops33h 03m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$2,106
This Korean Air deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/2612:55 pm
BOS
- UKB
1 stop33h 00m
Korean Air
Thu 4/306:55 pm
UKB
- BOS
1 stop28h 25m
Korean Air
Deal found 3/31![Korean Air logo]()
$2,833
Last-minute flights from Boston to OsakaDiscover last-minute flight deals from Boston to Osaka. Data last updated April 1, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Osaka. Data last updated April 1, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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.
Sat 4/116:40 pm
BOS
- KIX
2 stops32h 45m
Air Canada
Sat 4/186:00 pm
KIX
- BOS
2 stops28h 59m
Air Canada
Deal found 3/30![Air Canada logo]()
$1,387
This Air Canada deal was found by Cheapflights users on 3/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:30 am
BOS
- KIX
2 stops21h 55m
Multiple Airlines
Wed 5/207:35 am
KIX
- BOS
2 stops26h 52m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$1,276
This Orbitz deal was found by Cheapflights users on 3/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:20 pm
BOS
- KIX
1 stop25h 35m
Multiple Airlines
Fri 6/52:00 pm
KIX
- BOS
2 stops31h 38m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$1,284
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:30 am
BOS
- KIX
2 stops24h 10m
Delta
Tue 5/192:15 am
KIX
- BOS
1 stop21h 05m
Delta
Deal found 3/27![Delta logo]()
$1,291
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:37 am
BOS
- KIX
2 stops24h 08m
Delta
Thu 6/42:15 am
KIX
- BOS
2 stops26h 45m
Delta
Deal found 3/29![Delta logo]()
$1,300
This Asiana Airlines deal was found by Cheapflights users on 3/28. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:45 am
BOS
- KIX
2 stops24h 50m
Multiple Airlines
Mon 5/1112:15 am
KIX
- BOS
2 stops27h 13m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$1,247
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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.
Sun 4/266:40 pm
BOS
- KIX
2 stops32h 45m
Air Canada
Thu 4/306:00 pm
KIX
- BOS
2 stops28h 54m
Air Canada
Deal found 3/31![Air Canada logo]()
$1,268
This FlightHub deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/265:30 am
BOS
- ITM
2 stops25h 20m
Multiple Airlines
Thu 4/3012:40 pm
ITM
- BOS
2 stops21h 47m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$1,280
This KAYAK deal was found by Cheapflights users on 3/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/261:45 am
BOS
- KIX
2 stops24h 05m
Cathay Pacific
Fri 6/59:05 am
KIX
- BOS
1 stop27h 00m
Cathay Pacific
Deal found 3/28![Cathay Pacific logo]()
$1,307
This Asiana Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:45 am
BOS
- KIX
2 stops24h 50m
Multiple Airlines
Thu 6/412:15 am
KIX
- BOS
2 stops29h 39m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$1,218
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:55 pm
BOS
- KIX
1 stop33h 25m
Delta
Thu 6/42:15 am
KIX
- BOS
1 stop21h 05m
Delta
Deal found 3/30![Delta logo]()
$1,286
This FlightHub deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/276:42 pm
BOS
- UKB
2 stops26h 18m
Multiple Airlines
Fri 6/511:00 am
UKB
- BOS
2 stops31h 03m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$1,412
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 April 1, 2026.
Search for one-way flight options from Boston to Osaka. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:00 pm
BOS
- KIX
3 stops50h 15m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:00 pm
BOS
- KIX
3 stops50h 15m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:30 am
BOS
- KIX
3 stops49h 20m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$489
This Cheapflightsfares deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/199:20 pm
BOS
- KIX
1 stop25h 35m
Etihad Airways
Deal found 3/31![Etihad Airways logo]()
$565
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:40 pm
BOS
- KIX
2 stops29h 05m
Hainan Airlines
Deal found 3/29![Hainan Airlines logo]()
$566
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:40 pm
BOS
- KIX
3 stops49h 35m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$570
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:40 pm
BOS
- KIX
2 stops29h 05m
Hainan Airlines
Deal found 3/29![Hainan Airlines logo]()
$573
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/229:20 pm
BOS
- KIX
1 stop25h 35m
Etihad Airways
Deal found 3/29![Etihad Airways logo]()
$575
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:30 am
BOS
- ITM
3 stops47h 25m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$580
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/146:00 am
BOS
- KIX
3 stops38h 15m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$585
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:00 am
BOS
- KIX
3 stops49h 50m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$588
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:30 am
BOS
- KIX
3 stops49h 20m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$595
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 April 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,214 (FlightHub) |
One-way from | $466 (Kiwi.com) |
Popular in | May |
Cheapest in | September |
Average price | $1,353 |
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 2,558,603 searches. Data last updated April 1, 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
Quickest round-trip
BostonOsaka
BOS - KIX
BOSKIX
Boston Logan Intl
Mon 4/27
12:55 pm-8:45 pm
1 stop18h 50m
Osaka Kansai Intl
Thu 6/4
2:15 am-10:20 am
1 stop21h 05m
$1,286
BostonOsaka
BOS - KIX
BOSKIX
Boston Logan Intl
Sun 4/19
7:37 am-8:45 pm
2 stops24h 08m
Osaka Kansai Intl
Thu 6/4
2:15 am-4:00 pm
2 stops26h 45m
$1,300
BostonOsaka
BOS - KIX
BOSKIX
Boston Logan Intl
Sun 5/10
4:25 pm-11:50 am
1 stop30h 25m
Osaka Kansai Intl
Wed 5/20
6:40 pm-2:40 pm
1 stop33h 00m
$1,606
BostonOsaka
BOS - ITM
BOSITM
Boston Logan Intl
Tue 6/9
6:30 pm-7:45 pm
2 stops36h 15m
Osaka Itami
Fri 6/26
2:35 pm-5:40 pm
2 stops40h 05m
$1,716
BostonOsaka
BOS - KIX
BOSKIX
Boston Logan Intl
Mon 4/27
5:54 pm-2:50 pm
3 stops31h 56m
Osaka Kansai Intl
Fri 6/5
9:05 am-12:04 am
2 stops27h 59m
$1,779
BostonKobe
BOS - UKB
BOSUKB
Boston Logan Intl
Sat 5/2
6:20 pm-10:00 am
2 stops26h 40m
Kobe
Tue 6/30
7:00 pm-7:40 am
2 stops25h 40m
$1,791
BostonKobe
BOS - UKB
BOSUKB
Boston Logan Intl
Mon 4/27
12:55 pm-10:55 am
1 stop33h 00m
Kobe
Fri 6/5
11:55 am-10:20 am
1 stop35h 25m
$1,802
BostonKobe
BOS - UKB
BOSUKB
Boston Logan Intl
Sat 5/16
7:11 pm-10:00 am
2 stops25h 49m
Kobe
Wed 5/20
11:00 am-5:00 am
2 stops31h 00m
$1,818
BostonOsaka
BOS - ITM
BOSITM
Boston Logan Intl
Mon 5/11
10:45 am-6:55 pm
2 stops19h 10m
Osaka Itami
Mon 5/18
12:55 pm-10:39 pm
2 stops22h 44m
$1,920
BostonOsaka
BOS - ITM
BOSITM
Boston Logan Intl
Fri 6/19
10:40 am-6:55 pm
2 stops19h 15m
Osaka Itami
Fri 7/24
2:00 pm-10:38 pm
2 stops21h 38m
$1,921
Showing 1-10 of 50 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 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 |
- 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-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
How far ahead should I book a flight from Boston to Osaka?
Use this chart to determine the optimal time to book a round-trip flight from Boston to Osaka. Price data was last updated on March 13, 2026.
Booking 90 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.
What is the cheapest month to book a flight from Boston to Osaka?
Currently, September is the cheapest month in which you can book a flight from Boston to Osaka (average of $787). Flying from Boston to Osaka in May is currently the most expensive (average of $1,243). 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?
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 April 1, 2026.
Peruse reviews from past customers who have flown with ANA,Japan Airlines, 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.
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Crew
8.7
Overall
8.4
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Crew
8.7
Overall
8.4
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Crew
8.7
Overall
8.4
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Crew
8.7
Overall
8.4
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Crew
8.7
Overall
8.4
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Crew
8.7
Overall
8.4
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
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 April 1, 2026.
Boston and Osaka flights
Browse other Boston and Osaka flight options. Last updated on April 1, 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 April 1, 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 2,558,603 searches. Data last updated April 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$787 | Average$1,101 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$833 | Average$1,294 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$979 | Average$1,538 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,034 | Average$1,349 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,493 | Average$2,417 | FlexibilityNo cancel fee | On-time79% |