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Kansai Intl

$528+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KIX
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,119
(Kiwi.com)

One-way from

$528
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,316
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. 2% potential increase in price ($27 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 May 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 May 1, 2025.

This Cathay Pacific deal was found by Cheapflights users on 4/30. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/281:40 amBOS - KIX
2 stops48h 15mCathay Pacific
Sun 10/127:35 pmKIX - BOS
1 stop40h 25mCathay Pacific
Deal found 4/30$1,081
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/44:30 pmBOS - KIX
1 stop30h 10mMultiple Airlines
Tue 6/107:40 amKIX - BOS
2 stops35h 00mMultiple Airlines
Deal found 4/29$1,119
This Justfly.com deal was found by Cheapflights users on 4/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:10 amBOS - KIX
2 stops23h 15mAir Canada
Fri 11/213:40 pmKIX - BOS
2 stops20h 57mAir Canada
Deal found 4/30$1,127
This Gurufare deal was found by Cheapflights users on 4/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2212:55 pmBOS - KIX
1 stop33h 25mKorean Air
Mon 10/136:20 pmKIX - BOS
1 stop28h 50mKorean Air
Deal found 4/30$1,147
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/236:00 amBOS - KIX
1 stop19h 50mANA
Wed 11/196:30 pmKIX - BOS
1 stop17h 10mANA
Deal found 4/30$1,153
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 8/206:00 amBOS - KIX
1 stop19h 50mUnited Airlines
Thu 12/186:30 pmKIX - BOS
1 stop17h 10mUnited Airlines
Deal found 4/30$1,192
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/298:00 amBOS - KIX
1 stop21h 45mAlaska Airlines
Thu 6/58:45 pmKIX - BOS
1 stop22h 15mAlaska Airlines
Deal found 4/30$1,290
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/199:05 amBOS - KIX
2 stops22h 55mDelta
Wed 5/2812:35 pmKIX - BOS
2 stops24h 58mDelta
Deal found 4/30$1,490
This Singapore Airlines deal was found by Cheapflights users on 4/30. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/194:45 pmBOS - KIX
3 stops34h 25mSingapore Airlines
Tue 11/44:50 pmKIX - BOS
3 stops37h 30mSingapore Airlines
Deal found 4/30$1,595
This United Airlines deal was found by Cheapflights users on 4/29. 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 11/16:30 pmBDL - KIX
3 stops33h 05mUnited Airlines
Mon 11/106:30 pmKIX - BDL
2 stops19h 27mUnited Airlines
Deal found 4/29$1,623
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/167:15 pmBDL - KIX
2 stops46h 25mCathay Pacific
Mon 5/267:35 pmKIX - BDL
2 stops39h 40mCathay Pacific
Deal found 4/29$1,667
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/153:54 pmBDL - KIX
3 stops35h 31mMultiple Airlines
Sat 6/211:10 pmKIX - BDL
3 stops34h 05mMultiple Airlines
Deal found 4/29$1,694

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 May 1, 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

Sun 9/28

1:40 am-2:55 pm

2 stops48h 15m

Osaka Kansai Intl

Sun 10/12

7:35 pm-11:00 pm

1 stop40h 25m

$1,081

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Wed 6/4

4:30 pm-11:40 am

1 stop30h 10m

Osaka Kansai Intl

Tue 6/10

7:40 am-5:40 am

2 stops35h 00m

$1,119

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 9/22

12:55 pm-11:20 am

1 stop33h 25m

Osaka Kansai Intl

Mon 10/13

6:20 pm-10:10 am

1 stop28h 50m

$1,147

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 9/23

6:00 am-2:50 pm

1 stop19h 50m

Osaka Kansai Intl

Wed 11/19

6:30 pm-9:40 pm

1 stop17h 10m

$1,153

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Wed 8/20

6:00 am-2:50 pm

1 stop19h 50m

Osaka Kansai Intl

Thu 12/18

6:30 pm-9:40 pm

1 stop17h 10m

$1,192

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 5/17

6:20 pm-4:25 pm

2 stops33h 05m

Osaka Kansai Intl

Sat 6/28

6:05 pm-3:58 pm

2 stops34h 53m

$1,276

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 5/29

8:00 am-6:45 pm

1 stop21h 45m

Osaka Kansai Intl

Thu 6/5

8:45 pm-6:00 am

1 stop22h 15m

$1,290

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 5/19

9:05 am-9:00 pm

2 stops22h 55m

Osaka Kansai Intl

Wed 5/28

12:35 pm-12:33 am

2 stops24h 58m

$1,490

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 10/19

4:45 pm-4:10 pm

3 stops34h 25m

Osaka Kansai Intl

Tue 11/4

4:50 pm-4:20 pm

3 stops37h 30m

$1,595

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

$1,662

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 $893). Flying from Massachusetts to Osaka Kansai Intl Airport in December is currently the most expensive (average of $1,336). 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 May 1, 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 May 1, 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
1,068 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

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
1,068 reviews
Korean Air
8.4
Very good
1,068 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

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
1,464 reviews
Korean Air
8.4
Very good
1,068 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

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
852 reviews
Korean Air
8.4
Very good
1,068 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

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
442 reviews
Korean Air
8.4
Very good
1,068 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

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
38 reviews
Korean Air
8.4
Very good
1,068 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

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 $546. However, be on the lookout for offers from Air Canada and Alaska Airlines, 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 $893). Flying from Massachusetts to Osaka Kansai Intl Airport in December is currently the most expensive (average of $1,336). 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
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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$867Average$1,115FlexibilityNo 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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