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Kansai Intl

$469+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KIX
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$728
(Air Canada)

One-way from

$469
(Air Canada)

Popular in

June

Cheapest in

September

Average price

$1,672
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. 16% potential increase in price ($249 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 June 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 junio 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/10. 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. 10/156:00 amBOS - KIX
2 stops21h 25mAir Canada
jue. 10/307:10 pmKIX - BOS
2 stops34h 48mAir Canada
Deal found 6/10$728
This Air Canada deal was found by Cheapflights users on 6/12. 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. 11/195:17 pmBOS - KIX
3 stops58h 18mMultiple Airlines
sáb. 11/297:10 pmKIX - BOS
2 stops28h 28mMultiple Airlines
Deal found 6/12$873
This Gotogate deal was found by Cheapflights users on 6/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/141:40 amBOS - KIX
1 stop24h 35mCathay Pacific
jue. 10/309:25 amKIX - BOS
1 stop26h 35mCathay Pacific
Deal found 6/10$995
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
dom. 8/248:00 amBOS - KIX
1 stop21h 45mAlaska Airlines
sáb. 8/308:45 pmKIX - BOS
1 stop22h 15mAlaska Airlines
Deal found 6/10$1,081
This Cheapflightsfares deal was found by Cheapflights users on 6/9. 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.
dom. 11/96:00 amBOS - KIX
1 stop20h 35mANA
vie. 11/216:30 pmKIX - BOS
1 stop17h 08mANA
Deal found 6/9$1,101
This United Airlines deal was found by Cheapflights users on 6/10. 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.
dom. 11/98:30 pmBOS - KIX
1 stop30h 05mUnited Airlines
vie. 11/216:30 pmKIX - BOS
1 stop20h 18mUnited Airlines
Deal found 6/10$1,131
This Hawaiian Airlines deal was found by Cheapflights users on 6/9. 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.
jue. 7/38:00 amBOS - KIX
1 stop21h 45mHawaiian Airlines
jue. 7/108:45 pmKIX - BOS
1 stop22h 15mHawaiian Airlines
Deal found 6/9$1,156
This Gurufare deal was found by Cheapflights users on 6/12. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/1912:55 pmBOS - KIX
1 stop39h 10mKorean Air
mar. 11/46:10 pmKIX - BOS
1 stop28h 30mKorean Air
Deal found 6/12$1,262

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 junio 12, 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

mié. 9/10

6:00 am-4:25 pm

2 stops21h 25m

Osaka Kansai Intl

vie. 9/19

6:05 pm-9:30 am

2 stops28h 25m

$735

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

mié. 9/10

6:00 am-8:30 pm

3 stops25h 30m

Osaka Kansai Intl

vie. 9/19

7:35 am-11:40 pm

3 stops29h 05m

$1,039

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

mar. 9/9

1:40 am-1:00 pm

1 stop22h 20m

Osaka Kansai Intl

vie. 9/19

9:10 am-11:00 pm

1 stop26h 50m

$1,050

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

dom. 8/24

8:00 am-6:45 pm

1 stop21h 45m

Osaka Kansai Intl

sáb. 8/30

8:45 pm-6:00 am

1 stop22h 15m

$1,081

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

dom. 8/24

7:45 am-7:30 pm

2 stops22h 45m

Osaka Kansai Intl

sáb. 8/30

8:25 am-11:56 pm

2 stops28h 31m

$1,152

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

jue. 7/3

8:00 am-6:45 pm

1 stop21h 45m

Osaka Kansai Intl

jue. 7/10

8:45 pm-6:00 am

1 stop22h 15m

$1,156

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

mar. 7/8

7:35 am-7:30 pm

2 stops46h 55m

Osaka Kansai Intl

mar. 7/15

4:55 pm-11:59 pm

1 stop20h 04m

$1,172

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

sáb. 8/30

2:30 pm-4:10 pm

3 stops36h 40m

Osaka Kansai Intl

mié. 9/17

5:25 pm-4:09 pm

3 stops35h 44m

$1,460

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

dom. 7/27

6:40 pm-4:25 pm

2 stops32h 45m

$469

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

lun. 7/28

4:30 pm-11:40 am

1 stop30h 10m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 16 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 $888). Flying from Boston to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,324). 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 junio 12, 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.

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 junio 12, 2025.
See what other customers who have flown with Korean Air, ANA and Alaska Airlines from Boston to Osaka have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,088 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very good
1,088 reviews
Korean Air
8.4
Very good
1,088 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
ANA
8.3
Very good
882 reviews
Korean Air
8.4
Very good
1,088 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Alaska Airlines
8.0
Very good
10,000 reviews
Korean Air
8.4
Very good
1,088 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Hawaiian Airlines
7.9
Good
2,494 reviews
Korean Air
8.4
Very good
1,088 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Cathay Pacific
7.6
Good
892 reviews
Korean Air
8.4
Very good
1,088 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

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 $728. Additional round-trip tickets that might be worth considering are offered by Cathay Pacific and Alaska Airlines, with the lowest prices starting at $995 and $1,081, respectively. Air Canada is currently priced 43% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $469. Etihad Airways flights start at $539 while deals on Alaska Airlines start at $587 one-way.

  • 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 $888). Flying from Boston to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,324). 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.

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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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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$807Average$925FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$867Average$1,125FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$929Average$1,430FlexibilityNo cancel feeOn-time67%
ANACheapest$979Average$1,303FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,056Average$1,443FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$1,239Average$1,290FlexibilityNo cancel feeOn-time79%

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