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Kansai Intl

$386+ Cheap flights from Massachusetts 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KIX
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Find flight deals from Massachusetts to Kansai Intl

Cheapest flights from Massachusetts to Kansai Intl
Explore the most affordable flight options available from Massachusetts to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This oojo deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:30 amBOS - KIX
1 stop22h 15mCathay Pacific
Wed 11/57:05 pmKIX - BOS
1 stop40h 55mCathay Pacific
Deal found 10/19$967
This FlightHub deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:30 amBOS - KIX
1 stop27h 20mCathay Pacific
Sun 5/106:35 pmKIX - BOS
1 stop41h 25mCathay Pacific
Deal found 10/20$971
This Air Canada deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:15 amBOS - KIX
2 stops26h 05mMultiple Airlines
Thu 12/118:00 amKIX - BOS
2 stops44h 52mMultiple Airlines
Deal found 10/20$978
This oojo deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:30 amBOS - KIX
2 stops24h 25mCathay Pacific
Tue 11/116:05 pmKIX - BOS
1 stop41h 55mCathay Pacific
Deal found 10/20$983
This Gurufare deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:30 amBOS - KIX
1 stop24h 45mCathay Pacific
Wed 5/139:10 amKIX - BOS
1 stop26h 50mCathay Pacific
Deal found 10/20$986
This Cathay Pacific deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 11/1812:30 amBOS - KIX
1 stop24h 45mCathay Pacific
Wed 11/2610:00 amKIX - BOS
1 stop26h 00mCathay Pacific
Deal found 10/18$991
This Gotogate deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/261:30 amBOS - KIX
2 stops24h 25mCathay Pacific
Mon 11/104:15 pmKIX - BOS
2 stops43h 45mCathay Pacific
Deal found 10/19$999
This Gurufare deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:30 amBOS - KIX
2 stops24h 25mCathay Pacific
Tue 5/1210:00 amKIX - BOS
1 stop26h 00mCathay Pacific
Deal found 10/20$1,002
This oojo deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/912:30 amBOS - KIX
1 stop27h 20mCathay Pacific
Thu 11/207:05 pmKIX - BOS
1 stop40h 55mCathay Pacific
Deal found 10/20$1,017
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/234:35 pmBDL - KIX
2 stops34h 05mUnited Airlines
Fri 5/154:55 pmKIX - BDL
2 stops29h 52mUnited Airlines
Deal found 10/19$1,218
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/234:35 pmBDL - KIX
2 stops34h 05mUnited Airlines
Thu 5/218:30 amKIX - BDL
2 stops28h 27mUnited Airlines
Deal found 10/19$1,221
This Ovago deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:41 amBDL - KIX
2 stops36h 04mJapan Airlines
Mon 5/189:10 pmKIX - BDL
2 stops33h 56mJapan Airlines
Deal found 10/19$1,238

Cheap flight deals from Massachusetts to Kansai Intl

Keep the following information in mind while searching for Massachusetts to Kansai Intl flight deals. Data was last updated October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$953
(Gotogate)

One-way from

$386
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,144
Provider with most accurate pricing for Boston Logan Intl-Osaka (OSA) flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Osaka (OSA) flights.
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From Massachusetts to Osaka Kansai Intl
Search Deals
One-way flight from Massachusetts to Osaka Kansai Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Massachusetts 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 2,558,603 searches. Data last updated October 20, 2025.
Use the filters below to find and compare flights from Massachusetts to Osaka Kansai Intl Airport that are best for you.

Fly from

Massachusetts

Fly to

Kansai Intl

Route

Depart

Return

Price

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 11/24

12:30 am-3:15 pm

1 stop24h 45m

Osaka Kansai Intl

Thu 5/14

10:00 am-11:00 pm

1 stop26h 00m

$991

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 11/18

12:30 am-3:15 pm

1 stop24h 45m

Osaka Kansai Intl

Wed 11/26

10:00 am-10:00 pm

1 stop26h 00m

$991

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 11/23

12:30 am-2:55 pm

2 stops24h 25m

Osaka Kansai Intl

Wed 5/13

4:20 pm-11:00 pm

2 stops43h 40m

$1,024

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 11/25

12:30 am-5:50 pm

1 stop27h 20m

Osaka Kansai Intl

Sat 5/9

5:45 pm-11:00 pm

1 stop42h 15m

$1,041

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 11/25

12:30 am-5:50 pm

1 stop27h 20m

Osaka Kansai Intl

Fri 5/8

10:00 am-11:00 pm

1 stop26h 00m

$1,041

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 11/22

12:30 am-5:50 pm

1 stop27h 20m

Osaka Kansai Intl

Sun 5/10

6:35 pm-11:00 pm

1 stop41h 25m

$1,041

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 11/23

12:30 am-5:50 pm

1 stop27h 20m

Osaka Kansai Intl

Fri 5/8

9:10 am-11:00 pm

1 stop26h 50m

$1,041

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 11/27

12:30 am-3:15 pm

1 stop24h 45m

Osaka Kansai Intl

Wed 5/13

6:35 pm-11:00 pm

1 stop41h 25m

$1,041

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 11/27

12:30 am-2:55 pm

2 stops24h 25m

Osaka Kansai Intl

Tue 5/12

10:00 am-11:00 pm

1 stop26h 00m

$1,057

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 11/22

12:30 am-2:55 pm

2 stops24h 25m

Osaka Kansai Intl

Tue 5/12

4:20 pm-11:00 pm

2 stops43h 40m

$1,074

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 47 results
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Best time to book a flight from Massachusetts to Kansai Intl

Have a flexible travel schedule? Discover the best time to fly to Kansai Intl from Massachusetts with our price prediction graph.
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 Massachusetts to Osaka Kansai Intl Airport

What is the cheapest month to book a flight from Massachusetts to Osaka Kansai Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Massachusetts to Osaka Kansai Intl Airport (average of $787). Flying from Massachusetts to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,209). 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.

What is the cheapest time of day to fly from MA to KIX?

Find hourly flight availability from Massachusetts to Kansai Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 20, 2025.

It’s typically best to fly out from Massachusetts to Osaka Kansai Intl Airport in the evening. Doing so could potentially save you 44% on the flight price compared to flying in the afternoon, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to Kansai Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Massachusetts to Osaka Kansai Intl Airport?

    Airlines like Cathay Pacific, United Airlines, and American Airlines fly from Massachusetts to Osaka Kansai Intl Airport in about 24h 45m. The time it takes to get you to your destination can typically vary by up to 12h 40m. Massachusetts and Osaka Kansai Intl Airport are separated by a distance of 6872 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Massachusetts to Osaka Kansai Intl Airport?

    Most travelers choose Boston Logan Intl - Osaka Kansai Intl, Hartford Bradley Intl - Osaka Kansai Intl or Worcester - Osaka Kansai Intl when deciding on the best route from Massachusetts to Osaka Kansai Intl Airport.

  • Can I find deals for flights from Massachusetts to Kansai Intl that include hotel bookings?

    Yes. In addition to deals on Massachusetts to Kansai Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Massachusetts to Kansai Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Massachusetts to Kansai Intl.

  • Can I find deals for business class flights from Massachusetts to Kansai Intl?

    Yes. Cheapflights offers flight deals from Massachusetts to Kansai Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Massachusetts to Osaka Kansai Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Massachusetts to Osaka Kansai Intl Airport (average of $787). Flying from Massachusetts to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,209). 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.

See more FAQs

Traveling to a place near Osaka Kansai Intl Airport?

Book flights to Osaka Kansai Intl Airport if you plan to visit one of these locations
Nara
Izumisano
Nishinomiya
Himeji

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Alternative routes for Massachusetts to Kansai Intl

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Top 4 airlines flying from Massachusetts to Kansai Intl

Discover the top 4 airlines that operate flights from Massachusetts 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 2,558,603 searches. Data last updated October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$787Average$1,115FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$940Average$1,294FlexibilityNo cancel feeOn-time72%
ANACheapest$979Average$1,283FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,056Average$1,443FlexibilityNo cancel feeOn-time69%

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