$511+ 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — OSA
Nov 12 — Nov 191
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 October 13, 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 October 13, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/8. 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 11/177:14 am -
2 stops21h 26m
Tue 12/19:10 pm -
2 stops32h 29m
Deal found 10/8![Japan Airlines logo]()
$910
This lastminute.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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.
Sat 12/55:35 pm -
2 stops24h 05m
Fri 12/182:40 pm -
1 stop16h 45m
Deal found 10/12![Japan Airlines logo]()
$911
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 12/52:59 pm -
2 stops35h 46m
Fri 12/186:35 pm -
2 stops20h 43m
Deal found 10/12![United Airlines logo]()
$924
This Justfly.com deal was found by Cheapflights users on 10/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:14 am -
2 stops40h 16m
Thu 11/196:50 am -
2 stops22h 33m
Deal found 10/8![Japan Airlines logo]()
$931
This Cheapflightsfares deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 11/177:14 am -
2 stops22h 41m
Tue 12/12:40 pm -
1 stop16h 45m
Deal found 10/11![Japan Airlines logo]()
$933
This Air Canada deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/156:35 pm -
2 stops33h 05m
Mon 2/157:25 pm -
2 stops33h 28m
Deal found 10/10![Air Canada logo]()
$937
This Cheapflightsfares deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/157:14 am -
2 stops22h 41m
Mon 2/157:30 am -
2 stops22h 41m
Deal found 10/10![Japan Airlines logo]()
$939
This Cheapflightsfares deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 12/810:24 am -
2 stops21h 56m
Sun 12/207:25 am -
1 stop24h 00m
Deal found 10/12![Japan Airlines logo]()
$941
This Cheapflightsfares deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/1712:00 pm -
1 stop20h 15m
Wed 12/27:25 am -
2 stops23h 38m
Deal found 10/12![Japan Airlines logo]()
$942
This Cheapflightsfares deal was found by Cheapflights users on 10/9. 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 11/227:13 am -
2 stops25h 02m
Mon 11/309:10 pm -
2 stops32h 16m
Deal found 10/9![Japan Airlines logo]()
$946
This FlightHub deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/177:14 am -
2 stops22h 01m
Wed 12/28:10 pm -
1 stop35h 15m
Deal found 10/12![Japan Airlines logo]()
$956
This oojo deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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.
Sun 11/2912:00 pm -
1 stop17h 55m
Mon 12/147:30 pm -
2 stops34h 09m
Deal found 10/12![Japan Airlines logo]()
$969
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 October 13, 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 October 13, 2026.
This FlightHub deal was found by Cheapflights users on 10/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/175:30 am -
2 stops24h 25m
Fri 1/292:00 pm -
2 stops22h 37m
Deal found 10/8![Multiple Airlines logo]()
$908
This United Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 12/51:50 pm -
1 stop36h 55m
Fri 12/186:35 pm -
1 stop18h 48m
Deal found 10/11![United Airlines logo]()
$924
This Japan Airlines deal was found by Cheapflights users on 10/8. 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 2/812:00 pm -
1 stop17h 55m
Fri 2/122:40 pm -
1 stop16h 55m
Deal found 10/8![Japan Airlines logo]()
$963
This Korean Air deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/2511:10 am -
1 stop39h 50m
Wed 12/29:00 am -
1 stop37h 50m
Deal found 10/10![Korean Air logo]()
$981
This United Airlines deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/55:27 pm -
2 stops33h 18m
Tue 1/123:20 pm -
2 stops41h 10m
Deal found 10/13![United Airlines logo]()
$988
This Korean Air deal was found by Cheapflights users on 10/9. 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 11/811:10 am -
1 stop21h 30m
Thu 11/1911:55 am -
1 stop34h 55m
Deal found 10/9![Korean Air logo]()
$1,026
This Korean Air deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 stop35h 40m
Tue 11/176:10 pm -
1 stop28h 40m
Deal found 10/11![Korean Air logo]()
$1,026
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Tue 1/57:15 pm -
2 stops55h 30m
Thu 1/213:20 pm -
3 stops22h 39m
Deal found 10/9![United Airlines logo]()
$1,124
Last-minute flights from Boston to OsakaDiscover last-minute flight deals from Boston to Osaka. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Osaka. Data last updated October 13, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 10/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:14 am -
2 stops40h 16m
Thu 11/196:50 am -
2 stops22h 33m
Deal found 10/8![Japan Airlines logo]()
$931
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 am -
2 stops23h 10m
Thu 11/196:00 pm -
1 stop26h 50m
Deal found 10/8![American Airlines logo]()
$953
This KAYAK deal was found by Cheapflights users on 10/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 am -
1 stop23h 10m
Thu 11/196:00 pm -
1 stop19h 59m
Deal found 10/8![Multiple Airlines logo]()
$961
This Air Canada deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/156:35 pm -
2 stops33h 05m
Mon 2/157:25 pm -
2 stops33h 28m
Deal found 10/10![Air Canada logo]()
$937
This Cheapflightsfares deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/157:14 am -
2 stops22h 41m
Mon 2/157:30 am -
2 stops22h 41m
Deal found 10/10![Japan Airlines logo]()
$939
This Cheapflightsfares deal was found by Cheapflights users on 10/8. 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 11/177:14 am -
2 stops21h 26m
Tue 12/19:10 pm -
2 stops32h 29m
Deal found 10/8![Japan Airlines logo]()
$910
This Cheapflightsfares deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 11/177:14 am -
2 stops22h 41m
Tue 12/12:40 pm -
1 stop16h 45m
Deal found 10/11![Japan Airlines logo]()
$933
This Cheapflightsfares deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/1712:00 pm -
1 stop20h 15m
Wed 12/27:25 am -
2 stops23h 38m
Deal found 10/12![Japan Airlines logo]()
$942
This FlightHub deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/177:14 am -
2 stops22h 01m
Wed 12/28:10 pm -
1 stop35h 15m
Deal found 10/12![Japan Airlines logo]()
$956
This Cheapflightsfares deal was found by Cheapflights users on 10/9. 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 11/227:13 am -
2 stops25h 02m
Mon 11/309:10 pm -
2 stops32h 16m
Deal found 10/9![Japan Airlines logo]()
$946
This Cheapflightsfares deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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.
Wed 11/256:00 am -
2 stops26h 15m
Wed 12/27:25 am -
2 stops22h 14m
Deal found 10/10![Japan Airlines logo]()
$965
This oojo deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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.
Sun 11/2912:00 pm -
1 stop17h 55m
Mon 12/147:30 pm -
2 stops34h 09m
Deal found 10/12![Japan Airlines logo]()
$969
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 October 13, 2026.
Search for one-way flight options from Boston to Osaka. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
This FlightHub deal was found by Cheapflights users on 10/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:35 pm -
2 stops57h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Air Canada logo]()
$511
This Air Canada deal was found by Cheapflights users on 10/9. 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.
Thu 11/265:45 am -
2 stops24h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$522
This Cheapflightsfares deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 11/1012:00 pm -
1 stop18h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Japan Airlines logo]()
$560
This Cheapflightsfares deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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.
Wed 2/247:16 am -
2 stops22h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Japan Airlines logo]()
$563
This Cheapflightsfares deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/87:14 am -
2 stops23h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Japan Airlines logo]()
$564
This Cheapflightsfares deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 11/107:14 am -
2 stops34h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Japan Airlines logo]()
$564
This Air Canada deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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.
Thu 1/146:35 pm -
2 stops35h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Multiple Airlines logo]()
$568
This SmartFares deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/87:31 am -
2 stops34h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![ANA logo]()
$575
This oojo deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:00 am -
1 stop23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Japan Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:01 pm -
2 stops32h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![United Airlines logo]()
$583
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/76:01 pm -
1 stop32h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![United Airlines logo]()
$599
This oojo deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:40 pm -
2 stops24h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Japan Airlines logo]()
$599
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 October 13, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $871 (Justfly.com) |
One-way from | $511 (FlightHub) |
Popular in | December |
Cheapest in | February |
Average price | $1,532 |
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 October 13, 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
Thu 11/26
5:45 am-8:25 pm
2 stops24h 40m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$522
BostonOsaka
BOS Boston Logan Intl - ITM Osaka Itami
BOSITM
Boston Logan Intl
Wed 2/24
7:16 am-7:55 pm
2 stops22h 39m
Osaka Itami
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$563
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Tue 11/10
7:14 am-6:40 pm
2 stops21h 26m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$564
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Mon 10/19
6:00 am-6:45 pm
1 stop23h 45m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$581
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Mon 10/19
5:01 pm-2:50 pm
2 stops32h 49m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$583
BostonOsaka
BOS Boston Logan Intl - ITM Osaka Itami
BOSITM
Boston Logan Intl
Sat 2/13
2:16 pm-8:35 pm
2 stops40h 19m
Osaka Itami
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$601
BostonOsaka
BOS Boston Logan Intl - ITM Osaka Itami
BOSITM
Boston Logan Intl
Sat 2/13
3:00 pm-6:10 pm
2 stops37h 10m
Osaka Itami
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$601
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Thu 12/31
7:00 am-7:10 pm
1 stop22h 10m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$606
BostonOsaka
BOS Boston Logan Intl - ITM Osaka Itami
BOSITM
Boston Logan Intl
Thu 1/28
7:10 am-7:55 pm
2 stops22h 45m
Osaka Itami
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$610
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Thu 12/31
5:45 am-10:20 pm
2 stops26h 35m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$612
Showing 1-10 of 25 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 October.
| 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
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
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 $1,136). Flying from Boston to Osaka in December is currently the most expensive (average of $2,903). 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 $1,431 and $1,924 in February.The cheapest round-trip price found within the last 5 days was $871 on Multiple Airlines (Feb 14-Feb 23).
How far ahead should I book a flight from Boston to Osaka?
Booking 55 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 October 13, 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.
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Food
7.7
Overall
8.3
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Osaka flight routes
Other flight options
Other flights from Boston
Popular flights
Alternative routes for Boston to Osaka
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Osaka by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Osaka by cabin class
Find flights from Boston to Osaka, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 October 13, 2026.
Boston and Osaka flights
Browse other Boston and Osaka flight options. Last updated on October 13, 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 October 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Boston to Osaka
Discover the top 4 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 October 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$837 | 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$1,266 | Average$1,846 | FlexibilityNo cancel fee | On-time79% |