$541+ Cheap flights from Boston (BOS) to Kansai Intl (KIX)
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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KIX
Sep 30 — Oct 71
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Kansai Intl 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 Kansai Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to Kansai IntlExplore the most affordable flight options available from Boston to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 31, 2026.
Explore the most affordable flight options available from Boston to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 31, 2026.
This lol.travel deal was found by Cheapflights users on 8/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am -
1 stop21h 25m
Mon 9/146:00 pm -
2 stops28h 50m
Deal found 8/31![Air Canada logo]()
$773
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Tue 9/16:50 pm -
2 stops32h 35m
Thu 10/16:00 pm -
2 stops28h 50m
Deal found 8/27![Air Canada logo]()
$826
This Mytrip deal was found by Cheapflights users on 8/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:55 pm -
1 stop18h 50m
Tue 9/1512:35 pm -
1 stop34h 35m
Deal found 8/31![Korean Air logo]()
$830
This Air Canada deal was found by Cheapflights users on 8/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:50 am -
2 stops21h 35m
Wed 9/236:00 pm -
1 stop28h 55m
Deal found 8/28![Air Canada logo]()
$832
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Sat 9/126:50 pm -
2 stops32h 35m
Fri 9/256:00 pm -
2 stops28h 50m
Deal found 8/27![Air Canada logo]()
$834
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Mon 9/76:00 am -
2 stops21h 25m
Wed 9/166:00 pm -
1 stop28h 55m
Deal found 8/27![Air Canada logo]()
$836
This Gotogate deal was found by Cheapflights users on 8/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:25 pm -
2 stops33h 00m
Wed 9/166:00 pm -
1 stop17h 40m
Deal found 8/28![Air Canada logo]()
$837
This Air Canada deal was found by Cheapflights users on 8/31. 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.
Thu 9/176:00 am -
2 stops21h 25m
Wed 9/236:00 pm -
1 stop28h 55m
Deal found 8/31![Multiple Airlines logo]()
$838
Best flights from Boston to Kansai IntlDiscover carefully curated flight deals from Boston to Kansai Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 31, 2026.
Discover carefully curated flight deals from Boston to Kansai Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 31, 2026.
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:05 pm -
2 stops31h 40m
Mon 11/166:35 pm -
1 stop18h 46m
Deal found 8/28![United Airlines logo]()
$1,108
This China Airlines deal was found by Cheapflights users on 8/31. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:40 pm -
2 stops29h 10m
Wed 10/287:00 pm -
2 stops32h 40m
Deal found 8/31![Multiple Airlines logo]()
$1,277
This United Airlines deal was found by Cheapflights users on 8/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/15:45 am -
3 stops45h 00m
Wed 2/106:35 pm -
2 stops19h 14m
Deal found 8/30![United Airlines logo]()
$1,108
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:36 pm -
2 stops32h 09m
Tue 12/86:35 pm -
1 stop27h 22m
Deal found 8/28![United Airlines logo]()
$1,108
This China Airlines deal was found by Cheapflights users on 8/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:20 pm -
2 stops27h 40m
Sun 10/257:00 pm -
2 stops25h 26m
Deal found 8/28![Multiple Airlines logo]()
$1,293
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Mon 11/305:00 pm -
2 stops33h 45m
Mon 12/76:35 pm -
1 stop27h 22m
Deal found 8/29![United Airlines logo]()
$1,108
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:36 pm -
2 stops32h 09m
Wed 11/256:35 pm -
1 stop25h 31m
Deal found 8/28![United Airlines logo]()
$1,108
This China Airlines deal was found by Cheapflights users on 8/29. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:10 pm -
2 stops27h 40m
Wed 10/217:05 pm -
2 stops32h 40m
Deal found 8/29![Multiple Airlines logo]()
$1,347
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Sat 1/167:00 pm -
2 stops31h 45m
Fri 1/296:35 pm -
1 stop27h 25m
Deal found 8/29![United Airlines logo]()
$1,122
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Tue 2/165:30 am -
1 stop21h 15m
Mon 3/156:35 pm -
1 stop19h 30m
Deal found 8/29![United Airlines logo]()
$1,303
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Sat 11/286:36 pm -
2 stops32h 09m
Wed 12/26:35 pm -
2 stops29h 36m
Deal found 8/29![United Airlines logo]()
$1,307
Last-minute flights from Boston to Kansai IntlDiscover last-minute flight deals from Boston to Kansai Intl. Data last updated August 31, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Kansai Intl. Data last updated August 31, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 8/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:25 pm -
2 stops33h 00m
Wed 9/166:00 pm -
1 stop17h 40m
Deal found 8/28![Air Canada logo]()
$837
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Tue 9/16:50 pm -
2 stops32h 35m
Thu 10/16:00 pm -
2 stops28h 50m
Deal found 8/27![Air Canada logo]()
$826
This Mytrip deal was found by Cheapflights users on 8/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:55 pm -
1 stop18h 50m
Tue 9/1512:35 pm -
1 stop34h 35m
Deal found 8/31![Korean Air logo]()
$830
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Mon 9/76:00 am -
2 stops21h 25m
Wed 9/166:00 pm -
1 stop28h 55m
Deal found 8/27![Air Canada logo]()
$836
This lol.travel deal was found by Cheapflights users on 8/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am -
1 stop21h 25m
Mon 9/146:00 pm -
2 stops28h 50m
Deal found 8/31![Air Canada logo]()
$773
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Sat 9/126:50 pm -
2 stops32h 35m
Fri 9/256:00 pm -
2 stops28h 50m
Deal found 8/27![Air Canada logo]()
$834
This Air Canada deal was found by Cheapflights users on 8/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:50 am -
2 stops21h 35m
Wed 9/236:00 pm -
1 stop28h 55m
Deal found 8/28![Air Canada logo]()
$832
This Air Canada deal was found by Cheapflights users on 8/31. 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.
Thu 9/176:00 am -
2 stops21h 25m
Wed 9/236:00 pm -
1 stop28h 55m
Deal found 8/31![Multiple Airlines logo]()
$838
One-way flights from Boston to Kansai IntlSearch for one-way flight options from Boston to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
Search for one-way flight options from Boston to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Mon 10/2612:57 pm -
3 stops40h 43m
Deal found 8/28![Multiple Airlines logo]()
$541
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:40 am -
3 stops41h 00m
Deal found 8/30![Multiple Airlines logo]()
$588
This Booking.com deal was found by Cheapflights users on 8/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:00 pm -
1 stop18h 50m
Deal found 8/31![Japan Airlines logo]()
$595
This Kiwi.com deal was found by Cheapflights users on 8/31. 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.
Wed 11/2511:40 am -
3 stops42h 45m
Deal found 8/31![Multiple Airlines logo]()
$597
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops23h 10m
Deal found 8/31![American Airlines logo]()
$602
This Kiwi.com deal was found by Cheapflights users on 8/29. 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.
Tue 11/249:50 am -
3 stops42h 50m
Deal found 8/29![Multiple Airlines logo]()
$606
This FlightHub deal was found by Cheapflights users on 8/31. 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 11/95:30 am -
2 stops26h 20m
Deal found 8/31![ANA logo]()
$609
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/1410:55 pm -
2 stops44h 15m
Deal found 8/27![Multiple Airlines logo]()
$634
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:30 pm -
3 stops58h 35m
Deal found 8/30![Multiple Airlines logo]()
$647
Find flight deals from Boston to Kansai Intl
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Kansai Intl (KIX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $773 (lol.travel) |
One-way from | $541 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,380 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Kansai Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 31, 2026.
Use the filters below to find and compare flights from Boston to Osaka Kansai Intl Airport 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
Mon 11/2
7:05 pm-4:45 pm
2 stops31h 40m
Osaka Kansai Intl
Mon 11/16
6:35 pm-11:21 pm
1 stop18h 46m
$1,108
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Mon 2/1
5:45 am-4:45 pm
3 stops45h 00m
Osaka Kansai Intl
Wed 2/10
6:35 pm-11:49 pm
2 stops19h 14m
$1,108
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Tue 11/24
6:36 pm-4:45 pm
2 stops32h 09m
Osaka Kansai Intl
Tue 12/8
6:35 pm-7:57 am
1 stop27h 22m
$1,108
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Mon 11/30
5:00 pm-4:45 pm
2 stops33h 45m
Osaka Kansai Intl
Mon 12/7
6:35 pm-7:57 am
1 stop27h 22m
$1,108
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Wed 11/11
6:36 pm-4:45 pm
2 stops32h 09m
Osaka Kansai Intl
Wed 11/25
6:35 pm-6:06 am
1 stop25h 31m
$1,108
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Sat 1/16
7:00 pm-4:45 pm
2 stops31h 45m
Osaka Kansai Intl
Fri 1/29
6:35 pm-8:00 am
1 stop27h 25m
$1,122
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Wed 9/30
6:40 pm-12:50 pm
2 stops29h 10m
Osaka Kansai Intl
Wed 10/28
7:00 pm-2:40 pm
2 stops32h 40m
$1,277
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Mon 10/19
7:20 pm-12:00 pm
2 stops27h 40m
Osaka Kansai Intl
Sun 10/25
7:00 pm-7:26 am
2 stops25h 26m
$1,293
Quickest round-trip
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Tue 2/16
5:30 am-4:45 pm
1 stop21h 15m
Osaka Kansai Intl
Mon 3/15
6:35 pm-1:05 am
1 stop19h 30m
$1,303
BostonOsaka
BOS Boston Logan Intl - KIX Osaka Kansai Intl
BOSKIX
Boston Logan Intl
Sat 11/28
6:36 pm-4:45 pm
2 stops32h 09m
Osaka Kansai Intl
Wed 12/2
6:35 pm-10:11 am
2 stops29h 36m
$1,307
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Boston to Kansai Intl
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 Kansai Intl in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Osaka Kansai Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Osaka Kansai Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Osaka Kansai Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Osaka Kansai Intl Airport 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 Kansai Intl Airport 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 Kansai Intl
Have a flexible travel schedule? Discover the best time to fly to Kansai Intl from Boston with our price prediction graph.
BOS-KIX
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 Kansai Intl Airport
What is the cheapest month to book a flight from Boston to Osaka Kansai Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Boston to Osaka Kansai Intl Airport (average of $979). Flying from Boston to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,917). 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 Kansai Intl Airport?
Airfare is below average for this route at the moment.
Boston to Osaka Kansai Intl Airport flights typically cost between $945 and $1,628 in September.The cheapest round-trip price found within the last 5 days was $773 on Air Canada (Sep 10-Sep 14).
Reviews of airlines servicing Kansai Intl
Get insights into the airlines that provide service to Kansai Intl. 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 Kansai Intl. Reviews last updated August 31, 2026.
Get a feel of what it's like to fly with ANA,Cathay Pacific, andUnited Airlines from Boston to Osaka Kansai Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.7
Comfort
8.2
Food
7.8
Boarding
8.5
Entertainment
8.0
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Crew
8.7
Comfort
8.2
Food
7.8
Boarding
8.5
Entertainment
8.0
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Crew
8.7
Comfort
8.2
Food
7.8
Boarding
8.5
Entertainment
8.0
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Crew
8.7
Comfort
8.2
Food
7.8
Boarding
8.5
Entertainment
8.0
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Crew
8.7
Comfort
8.2
Food
7.8
Boarding
8.5
Entertainment
8.0
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Related info for your journey
Find useful and relevant information for your journey from Boston to Kansai Intl. 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 Kansai Intl Airport?
Book flights to Osaka Kansai Intl Airport if you plan to visit one of these locationsNara
Izumisano
Himeji
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Find flights from Boston to Kansai Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Kansai Intl
Explore flights to Kansai Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 31, 2026.
Boston and Kansai Intl flights
Browse other Boston and Kansai Intl flight options. Last updated on August 31, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on August 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Boston to Kansai Intl
Discover the top 4 airlines that operate flights from Boston to Kansai Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$787 | Average$1,279 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$796 | Average$1,512 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$909 | Average$1,291 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$920 | Average$1,460 | FlexibilityNo cancel fee | On-time69% |