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Kansai Intl

$490+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KIX
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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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 April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,078
(oojo)

One-way from

$490
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,254
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
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One-way flight from Massachusetts to Osaka Kansai Intl
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Highest demand for flights based on searches. 1% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 24, 2025.

This oojo deal was found by Cheapflights users on 4/23. 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.
Sat 10/181:40 amBOS - KIX
2 stops24h 15mCathay Pacific
Tue 11/46:05 pmKIX - BOS
1 stop41h 55mCathay Pacific
Deal found 4/23$1,078
This Air Canada deal was found by Cheapflights users on 4/23. 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 11/196:10 amBOS - KIX
2 stops26h 05mMultiple Airlines
Sat 11/293:40 pmKIX - BOS
2 stops20h 57mMultiple Airlines
Deal found 4/23$1,104
This Air Canada deal was found by Cheapflights users on 4/23. 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 11/186:10 amBOS - KIX
2 stops23h 15mAir Canada
Wed 11/263:40 pmKIX - BOS
2 stops20h 57mAir Canada
Deal found 4/23$1,110
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 11/96:00 amBOS - KIX
1 stop20h 35mANA
Fri 11/216:30 pmKIX - BOS
1 stop17h 10mANA
Deal found 4/23$1,167
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:32 pmBOS - KIX
2 stops30h 18mUnited Airlines
Thu 5/14:50 pmKIX - BOS
3 stops25h 49mUnited Airlines
Deal found 4/23$1,214
This Justfly.com deal was found by Cheapflights users on 4/23. 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.
Wed 11/196:00 amBOS - KIX
2 stops25h 00mKorean Air
Sun 11/236:10 pmKIX - BOS
1 stop28h 30mKorean Air
Deal found 4/23$1,321
This Hawaiian Airlines deal was found by Cheapflights users on 4/22. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/198:00 amBOS - KIX
1 stop21h 45mHawaiian Airlines
Wed 5/288:45 pmKIX - BOS
1 stop22h 15mHawaiian Airlines
Deal found 4/22$1,373
This FlightHub deal was found by Cheapflights users on 4/23. 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 5/167:14 amBDL - KIX
2 stops46h 46mTurkish Airlines
Mon 5/2610:25 pmKIX - BDL
2 stops37h 43mTurkish Airlines
Deal found 4/23$1,408
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Fri 7/48:00 amBOS - KIX
1 stop21h 45mAlaska Airlines
Mon 7/218:45 pmKIX - BOS
1 stop22h 15mAlaska Airlines
Deal found 4/22$1,558
This FlightHub deal was found by Cheapflights users on 4/23. 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 5/139:35 pmBOS - KIX
1 stop32h 25mTurkish Airlines
Mon 6/210:25 pmKIX - BOS
1 stop34h 15mTurkish Airlines
Deal found 4/23$1,603
This United Airlines deal was found by Cheapflights users on 4/23. 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 11/16:30 pmBDL - KIX
3 stops33h 05mUnited Airlines
Mon 11/106:30 pmKIX - BDL
2 stops18h 43mUnited Airlines
Deal found 4/23$1,623
This Gurufare deal was found by Cheapflights users on 4/23. 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.
Tue 6/246:15 pmBDL - KIX
2 stops25h 05mJapan Airlines
Mon 7/149:00 pmKIX - BDL
2 stops40h 04mJapan Airlines
Deal found 4/23$1,846

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 April 24, 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

Sat 10/18

1:40 am-2:55 pm

2 stops24h 15m

Osaka Kansai Intl

Tue 11/4

6:05 pm-10:00 pm

1 stop41h 55m

$1,078

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 5/13

6:05 am-2:50 pm

1 stop19h 45m

Osaka Kansai Intl

Tue 5/20

9:10 pm-2:19 pm

2 stops30h 09m

$1,169

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 5/12

4:30 pm-11:40 am

1 stop30h 10m

Osaka Kansai Intl

Fri 5/16

8:55 pm-7:03 am

3 stops47h 08m

$1,204

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 10/19

12:55 pm-9:00 pm

1 stop19h 05m

Osaka Kansai Intl

Tue 11/4

2:00 pm-8:40 am

1 stop32h 40m

$1,216

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 10/18

8:15 am-2:50 pm

1 stop41h 35m

Osaka Kansai Intl

Sat 10/25

4:50 pm-6:16 am

1 stop26h 26m

$1,224

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 7/7

5:50 am-4:25 pm

2 stops21h 35m

Osaka Kansai Intl

Mon 7/14

6:05 pm-9:35 am

2 stops28h 30m

$1,260

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 5/19

8:00 am-6:45 pm

1 stop21h 45m

Osaka Kansai Intl

Wed 5/28

8:45 pm-6:00 am

1 stop22h 15m

$1,373

HartfordOsaka

BDL - KIX

BDLKIX

Hartford Bradley Intl

Fri 5/16

7:14 am-7:00 pm

2 stops46h 46m

Osaka Kansai Intl

Mon 5/26

10:25 pm-11:08 pm

2 stops37h 43m

$1,408

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Fri 7/4

8:00 am-6:45 pm

1 stop21h 45m

Osaka Kansai Intl

Mon 7/21

8:45 pm-6:00 am

1 stop22h 15m

$1,558

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 5/13

9:35 pm-7:00 pm

1 stop32h 25m

Osaka Kansai Intl

Mon 6/2

10:25 pm-7:40 pm

1 stop34h 15m

$1,603

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 33 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, February is the cheapest month in which you can book a flight from Massachusetts to Osaka Kansai Intl Airport (average of $898). Flying from Massachusetts to Osaka Kansai Intl Airport in December is currently the most expensive (average of $1,350). 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 April 24, 2025.

When flying from Massachusetts to Osaka Kansai Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Kansai Intl by month

Plan your trip to Kansai Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Osaka Kansai Intl Airport ranges from 1.6 - 7.9 inches per month. June is typically the wettest month, when rainfall can reach 7.9 in. January is typically the driest time to visit Osaka Kansai Intl Airport when rainfall is around 1.6 in.

Temperature in Kansai Intl by month

Plan your trip to Kansai Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Osaka Kansai Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

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 April 24, 2025.
Read through reviews of airlines operating flights from Massachusetts to Osaka, such as Korean Air, Japan Airlines and ANA. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,062 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,062 reviews
Korean Air
8.4
Very good
1,062 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very good
1,453 reviews
Korean Air
8.4
Very good
1,062 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very good
853 reviews
Korean Air
8.4
Very good
1,062 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
443 reviews
Korean Air
8.4
Very good
1,062 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Hainan Airlines
8.1
Very good
37 reviews
Korean Air
8.4
Very good
1,062 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

  • What are the cheapest airlines to fly from Massachusetts to Osaka Kansai Intl Airport one-way?

    The cheapest airline one-way is Etihad Airways, with whom users have recently found tickets for as low as $548. However, be on the lookout for offers from ANA and Air Canada, as they are both options that can get you from Massachusetts to Osaka Kansai Intl Airport for a low price.

  • 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, February is the cheapest month in which you can book a flight from Massachusetts to Osaka Kansai Intl Airport (average of $898). Flying from Massachusetts to Osaka Kansai Intl Airport in December is currently the most expensive (average of $1,350). 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 Massachusetts?

Book flights to Massachusetts if you plan to visit one of these locations
Izumisano
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Nishinomiya
Himeji

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Alternative routes for Massachusetts to Kansai Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Massachusetts to Kansai Intl

Discover the top 6 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$867Average$1,130FlexibilityNo cancel feeOn-time72%
DeltaCheapest$867Average$968FlexibilityNo cancel feeOn-timeN/A
ANACheapest$979Average$1,303FlexibilityNo cancel feeOn-time80%
Air CanadaCheapest$1,000Average$1,433FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,051Average$1,443FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$1,239Average$1,295FlexibilityNo cancel feeOn-time79%

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