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Kansai Intl

$473+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KIX
abr. 7 — abr. 141
lun. 4/7
lun. 4/14
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 abril 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,104
(Mytrip)

One-way from

$523
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,150
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 ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 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 abril 2, 2025.

This Gurufare deal was found by Cheapflights users on 3/31. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/181:40 amBOS - KIX
1 stop22h 20mCathay Pacific
mar. 11/44:55 pmKIX - BOS
1 stop43h 05mCathay Pacific
Deal found 3/31$1,061
This United deal was found by Cheapflights users on 3/31. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/198:30 pmBOS - KIX
1 stop29h 20mUnited Airlines
mar. 11/46:30 pmKIX - BOS
1 stop17h 10mUnited Airlines
Deal found 3/31$1,080
This Mytrip deal was found by Cheapflights users on 3/31. 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.
mié. 4/304:30 pmBOS - KIX
1 stop30h 10mMultiple Airlines
mié. 5/78:55 pmKIX - BOS
3 stops38h 56mMultiple Airlines
Deal found 3/31$1,104
This Justfly.com deal was found by Cheapflights users on 3/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/15:50 amBOS - KIX
2 stops21h 35mAir Canada
mar. 6/106:05 pmKIX - BOS
2 stops33h 27mAir Canada
Deal found 3/31$1,109
This Justfly.com deal was found by Cheapflights users on 3/30. 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.
lun. 4/76:00 amBOS - KIX
2 stops21h 50mANA
mié. 4/164:50 pmKIX - BOS
1 stop19h 46mANA
Deal found 3/30$1,218
This FlightHub deal was found by Cheapflights users on 3/31. 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.
jue. 8/289:35 pmBOS - KIX
1 stop32h 25mTurkish Airlines
mar. 9/910:25 pmKIX - BOS
1 stop34h 15mTurkish Airlines
Deal found 3/31$1,238
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/1912:05 pmBOS - KIX
1 stop20h 10mJapan Airlines
vie. 12/53:05 pmKIX - BOS
2 stops21h 40mJapan Airlines
Deal found 3/31$1,241
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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.
mar. 9/238:00 amBOS - KIX
1 stop21h 45mAlaska Airlines
mié. 11/198:45 pmKIX - BOS
1 stop24h 00mAlaska Airlines
Deal found 4/1$1,250
This Korean Air deal was found by Cheapflights users on 3/31. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/96:00 amBOS - KIX
2 stops25h 00mKorean Air
vie. 11/216:10 pmKIX - BOS
1 stop28h 30mKorean Air
Deal found 3/31$1,273
This Delta deal was found by Cheapflights users on 3/30. 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.
lun. 4/76:55 pmBOS - KIX
2 stops29h 00mDelta
lun. 4/142:10 pmKIX - BOS
2 stops29h 21mDelta
Deal found 3/30$1,279
This United deal was found by Cheapflights users on 3/31. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/52:55 pmBDL - KIX
2 stops34h 55mUnited Airlines
mar. 8/264:55 pmKIX - BDL
2 stops35h 43mUnited Airlines
Deal found 3/31$1,411
This Mytrip deal was found by Cheapflights users on 3/31. 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.
mié. 4/307:40 pmBDL - KIX
3 stops28h 05mMultiple Airlines
mié. 5/78:55 pmKIX - BDL
3 stops39h 23mMultiple Airlines
Deal found 3/31$2,111

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 abril 2, 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

mié. 4/30

4:30 pm-11:40 am

1 stop30h 10m

Osaka Kansai Intl

mié. 5/7

8:55 pm-10:51 pm

3 stops38h 56m

$1,104

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

vie. 9/5

1:40 am-2:55 pm

2 stops24h 15m

Osaka Kansai Intl

sáb. 9/20

9:10 am-11:00 pm

1 stop26h 50m

$1,107

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

dom. 6/1

5:50 am-4:25 pm

2 stops21h 35m

Osaka Kansai Intl

mar. 6/10

6:05 pm-2:32 pm

2 stops33h 27m

$1,109

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

sáb. 9/6

7:30 pm-2:50 pm

3 stops30h 20m

Osaka Kansai Intl

sáb. 9/20

4:50 pm-11:54 pm

2 stops20h 04m

$1,150

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

jue. 8/28

9:35 pm-7:00 pm

1 stop32h 25m

Osaka Kansai Intl

mar. 9/9

10:25 pm-7:40 pm

1 stop34h 15m

$1,238

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

mar. 9/23

8:00 am-6:45 pm

1 stop21h 45m

Osaka Kansai Intl

mié. 11/19

8:45 pm-6:45 am

1 stop24h 00m

$1,250

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

sáb. 9/6

12:55 pm-9:00 pm

1 stop19h 05m

Osaka Kansai Intl

sáb. 9/20

9:05 am-10:10 am

1 stop38h 05m

$1,259

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

dom. 5/11

7:25 am-9:00 pm

2 stops24h 35m

Osaka Kansai Intl

sáb. 5/31

9:05 am-6:40 am

2 stops34h 35m

$1,510

HartfordOsaka

BDL - KIX

BDLKIX

Hartford Bradley Intl

mar. 8/5

6:00 am-7:30 pm

2 stops24h 30m

Osaka Kansai Intl

mar. 8/26

11:00 am-9:22 pm

2 stops23h 22m

$1,526

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

dom. 8/17

10:40 am-8:30 am

2 stops32h 50m

Osaka Kansai Intl

dom. 8/31

8:25 am-6:44 pm

2 stops23h 19m

$1,526

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 35 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 abril 2, 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 abril 2, 2025.
Read through reviews of airlines operating flights from Massachusetts to Osaka, such as Korean Air, ANA and Asiana Airlines. 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
1,052 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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
1,052 reviews
Korean Air
8.4
Very good
1,052 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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
830 reviews
Korean Air
8.4
Very good
1,052 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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
440 reviews
Korean Air
8.4
Very good
1,052 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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
36 reviews
Korean Air
8.4
Very good
1,052 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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.
Delta
8.0
Very good
7,898 reviews
Korean Air
8.4
Very good
1,052 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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 $529. However, be on the lookout for offers from Korean Air and Hainan 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 $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
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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 abril 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$867Average$1,106FlexibilityNo cancel feeOn-time72%
DeltaCheapest$867Average$968FlexibilityNo cancel feeOn-timeN/A
ANACheapest$979Average$1,283FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,051Average$1,443FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$1,192Average$1,483FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$1,239Average$1,295FlexibilityNo cancel feeOn-time79%

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