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Kansai Intl

$462+ Cheap flights from Boston (BOS) 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KIX
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheap flight deals from Boston to Kansai Intl

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

Round-trip from

$794
(Air Canada)

One-way from

$462
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,191
From Boston Logan Intl to Osaka Kansai Intl
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One-way flight from Boston Logan Intl to Osaka Kansai Intl
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Highest demand for flights based on searches. 12% potential increase in price ($182 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Boston to Kansai Intl

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

This Air Canada deal was found by Cheapflights users on 8/12. 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.
lun. 9/15:50 amBOS - KIX
2 stops21h 35mAir Canada
mié. 9/176:05 pmKIX - BOS
2 stops28h 25mAir Canada
Deal found 8/12$794
This Air Canada deal was found by Cheapflights users on 8/12. 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.
mié. 9/176:30 pmBOS - KIX
2 stops32h 55mAir Canada
mié. 10/16:05 pmKIX - BOS
2 stops28h 25mAir Canada
Deal found 8/12$801
This Air Canada deal was found by Cheapflights users on 8/13. 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.
mar. 11/253:40 pmBOS - KIX
2 stops36h 00mMultiple Airlines
vie. 12/127:25 amKIX - BOS
2 stops40h 27mMultiple Airlines
Deal found 8/13$807
This Air Canada deal was found by Cheapflights users on 8/12. 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.
mar. 9/236:00 amBOS - KIX
1 stop21h 25mAir Canada
sáb. 10/46:05 pmKIX - BOS
2 stops28h 25mAir Canada
Deal found 8/12$813
This Ovago deal was found by Cheapflights users on 8/13. 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.
dom. 8/311:40 amBOS - KIX
1 stop24h 35mCathay Pacific
mié. 9/1710:00 amKIX - BOS
1 stop26h 00mCathay Pacific
Deal found 8/13$837
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/161:40 amBOS - KIX
1 stop24h 35mCathay Pacific
mié. 10/17:35 pmKIX - BOS
1 stop40h 25mCathay Pacific
Deal found 8/12$843
This Ovago deal was found by Cheapflights users on 8/13. 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.
mar. 9/91:40 amBOS - KIX
1 stop27h 30mCathay Pacific
dom. 9/145:45 pmKIX - BOS
1 stop42h 15mCathay Pacific
Deal found 8/13$852
This Gurufare deal was found by Cheapflights users on 8/13. 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.
dom. 9/71:40 amBOS - KIX
1 stop22h 20mCathay Pacific
lun. 9/1510:00 amKIX - BOS
1 stop26h 00mCathay Pacific
Deal found 8/13$858
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/11:40 amBOS - KIX
1 stop22h 20mCathay Pacific
dom. 9/147:35 pmKIX - BOS
1 stop40h 25mCathay Pacific
Deal found 8/12$860

Cheapflights Fare Finder

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

Fly from

Boston

Fly to

Kansai Intl

Route

Depart

Return

Price

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

lun. 9/1

5:50 am-4:25 pm

2 stops21h 35m

Osaka Kansai Intl

mié. 9/17

6:05 pm-9:30 am

2 stops28h 25m

$794

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

mié. 9/10

6:00 am-4:25 pm

2 stops21h 25m

Osaka Kansai Intl

vie. 9/19

6:05 pm-11:27 am

1 stop30h 22m

$794

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

lun. 9/29

6:00 am-2:50 pm

1 stop19h 50m

Osaka Kansai Intl

mié. 10/8

9:10 pm-12:50 am

2 stops40h 40m

$801

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

mié. 9/17

6:30 pm-4:25 pm

2 stops32h 55m

Osaka Kansai Intl

mié. 10/1

6:05 pm-10:39 pm

1 stop17h 34m

$801

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

dom. 11/9

5:30 am-5:40 pm

2 stops22h 10m

$462

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

mié. 10/1

5:50 am-7:30 pm

3 stops48h 40m

$462

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

mar. 9/2

6:30 pm-4:25 pm

2 stops32h 55m

$464

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

lun. 8/25

5:50 am-4:25 pm

2 stops21h 35m

$464

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

mar. 9/30

6:00 am-4:25 pm

2 stops21h 25m

$471

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

lun. 9/1

12:15 pm-4:25 pm

1 stop39h 10m

$471

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 11 results
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Best time to book a flight from Boston to Kansai Intl

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

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

Currently, February is the cheapest month in which you can book a flight from Boston to Osaka Kansai Intl Airport (average of $873). Flying from Boston to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,313). 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 BOS to KIX?

Find hourly flight availability from Boston 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 agosto 14, 2025.

When flying from Boston to Osaka Kansai Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 45% versus a flight in the afternoon.

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 agosto 14, 2025.
Get a feel of what it's like to fly with ANA, Delta, and Cathay Pacific from Boston to Osaka Kansai Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
933 reviews

Overall

8.4

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Crew

8.7

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
ANA
8.4
Very good
933 reviews
ANA
8.4
Very good
933 reviews

Overall

8.4

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Crew

8.7

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
Delta
8.0
Very good
7,980 reviews
ANA
8.4
Very good
933 reviews

Overall

8.4

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Crew

8.7

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
Cathay Pacific
7.6
Good
968 reviews
ANA
8.4
Very good
933 reviews

Overall

8.4

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Crew

8.7

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
United Airlines
7.4
Good
8,916 reviews
ANA
8.4
Very good
933 reviews

Overall

8.4

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Crew

8.7

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
Air Canada
7.1
Good
9,949 reviews
ANA
8.4
Very good
933 reviews

Overall

8.4

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Crew

8.7

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Related info for your journey

Find useful and relevant information for your journey from Boston 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 airport do you fly from for flights from Boston to Osaka Kansai Intl?

    If you book a flight to Osaka Kansai Intl from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 0 flights from Logan Intl to Osaka Kansai Intl per day from 6 different airlines.

  • What are the cheapest airlines flying from Boston to Osaka Kansai Intl Airport round-trip?

    Flying on Air Canada is currently your cheapest option to Osaka Kansai Intl Airport, with prices starting at $762. Additional round-trip tickets that might be worth considering are offered by Delta and Cathay Pacific, with the lowest prices starting at $807 and $883, respectively. Air Canada is currently priced 40% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Boston to Osaka Kansai Intl Airport (average of $873). Flying from Boston to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,313). 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
Izumisano
Nara
Nishinomiya
Himeji

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to Kansai Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Hartford to Kansai Intl flights

Top 6 airlines flying from Boston to Kansai Intl

Discover the top 6 airlines that operate flights from Boston 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$762Average$1,211FlexibilityNo cancel feeOn-time67%
DeltaCheapest$807Average$925FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$883Average$1,174FlexibilityNo cancel feeOn-time72%
ANACheapest$979Average$1,303FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,056Average$1,443FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$1,239Average$1,285FlexibilityNo cancel feeOn-time79%

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