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$408+ Cheap flights from Kansai Intl (KIX) to Boston (BOS)

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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
KIX — BOS
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap flight deals from Kansai Intl to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Kansai Intl (KIX) to Boston (BOS). 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 September 14, 2025.

Round-trip from

$800
(Air Canada)

One-way from

$408
(Booking.com)

Popular in

May

Cheapest in

October

Average price

$1,091
From Osaka Kansai Intl to Boston Logan Intl
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One-way flight from Osaka Kansai Intl to Boston Logan Intl
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Highest demand for flights based on searches. 11% potential increase in price ($173 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Kansai Intl to Boston

Cheapest flights from Kansai Intl to Boston
Explore the most affordable flight options available from Kansai Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Air Canada deal was found by Cheapflights users on 9/14. 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 11/37:25 pmKIX - BOS
2 stops28h 07mAir Canada
Mon 11/106:40 pmBOS - KIX
2 stops57h 00mAir Canada
Deal found 9/14$800
This Air Canada deal was found by Cheapflights users on 9/12. 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 10/226:05 pmKIX - BOS
1 stop30h 24mAir Canada
Wed 11/55:30 amBOS - KIX
2 stops22h 10mAir Canada
Deal found 9/12$805
This Air Canada deal was found by Cheapflights users on 9/12. 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 10/226:05 pmKIX - BOS
1 stop30h 24mAir Canada
Tue 11/46:15 amBOS - KIX
2 stops45h 25mAir Canada
Deal found 9/12$812
This Air Canada deal was found by Cheapflights users on 9/12. 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 10/226:05 pmKIX - BOS
1 stop28h 50mAir Canada
Fri 11/75:30 amBOS - KIX
2 stops22h 10mAir Canada
Deal found 9/12$839
This Air Canada deal was found by Cheapflights users on 9/12. 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 10/226:05 pmKIX - BOS
1 stop17h 34mAir Canada
Thu 11/61:00 pmBOS - KIX
2 stops38h 40mAir Canada
Deal found 9/12$846
This Air Canada deal was found by Cheapflights users on 9/14. 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 11/87:25 pmKIX - BOS
2 stops28h 07mAir Canada
Fri 11/146:40 pmBOS - KIX
2 stops57h 00mAir Canada
Deal found 9/14$868

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kansai Intl to Boston 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 September 14, 2025.
Use the filters below to find and compare flights from Osaka Kansai Intl Airport to Boston that are best for you.

Fly from

Kansai Intl

Fly to

Boston

Route

Depart

Return

Price

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Mon 11/3

7:25 pm-9:32 am

2 stops28h 07m

Boston Logan Intl

Mon 11/10

6:40 pm-5:40 pm

2 stops57h 00m

$800

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Sat 11/8

7:05 pm-10:00 pm

1 stop40h 55m

Boston Logan Intl

Wed 11/12

12:30 am-12:45 pm

1 stop22h 15m

$978

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Wed 11/5

9:50 am-10:00 pm

1 stop26h 10m

Boston Logan Intl

Fri 11/14

12:30 am-12:45 pm

1 stop22h 15m

$978

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Thu 11/6

7:05 pm-10:00 pm

1 stop40h 55m

Boston Logan Intl

Thu 11/13

12:30 am-9:05 pm

1 stop30h 35m

$978

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Sat 11/8

9:25 am-10:00 pm

1 stop26h 35m

Boston Logan Intl

Thu 11/13

12:30 am-12:45 pm

1 stop22h 15m

$978

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Thu 11/6

9:50 am-10:00 pm

1 stop26h 10m

Boston Logan Intl

Tue 11/11

12:30 am-12:45 pm

1 stop22h 15m

$978

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Fri 11/7

9:50 am-10:00 pm

1 stop26h 10m

Boston Logan Intl

Mon 11/10

12:30 am-12:45 pm

1 stop22h 15m

$978

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Fri 11/7

7:05 pm-10:00 pm

1 stop40h 55m

Boston Logan Intl

Fri 11/14

12:30 am-3:15 pm

1 stop24h 45m

$978

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Sat 11/8

6:05 pm-10:00 pm

1 stop41h 55m

Boston Logan Intl

Fri 11/14

12:30 am-3:15 pm

1 stop24h 45m

$978

OsakaBoston

KIX - BOS

KIXBOS

Osaka Kansai Intl

Sat 11/8

9:25 am-10:00 pm

1 stop26h 35m

Boston Logan Intl

Mon 11/10

12:30 am-12:45 pm

1 stop22h 15m

$978

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 23 results
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Best time to book a flight from Kansai Intl to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Kansai Intl 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.

Related info for your journey

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

  • What airport do you fly into for flights to Boston from Osaka Kansai Intl?

    Boston Logan Intl (BOS) is the airport you will fly into if you book a flight from Osaka Kansai Intl to Boston. You should not have trouble finding flights to Logan Intl from Osaka Kansai Intl; the airport handles an average of 0 inbound flights from Osaka Kansai Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Boston airport from Osaka Kansai Intl. It is only a 2.6 mi journey from Logan Intl (BOS) to Boston’s city center.

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

    There are many flights that can get you from Osaka Kansai Intl Airport to Boston in 28h 07m. Fly via Air Canada or Cathay Pacific to get the fastest option. The distance from Osaka Kansai Intl Airport to Boston is about 6872 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $462 is the cheapest one-way deal found within the past few days, from Korean Air. You may also be able to find cheap deals on Delta and Air Canada, with prices starting from $466 and $493, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kansai Intl to Boston 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 Osaka Kansai Intl Airport to Boston?

    Currently, January is the cheapest month in which you can book a flight from Osaka Kansai Intl Airport to Boston (average of $218). Flying from Osaka Kansai Intl Airport to Boston in July is currently the most expensive (average of $311). 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

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