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Kansai Intl

$546+ 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KIX
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Osaka Kansai Intl are usually found in September or October, booked 65 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,176
(Gurufare)

One-way from

$546
(oojo)

Popular in

July

Cheapest in

September

Average price

$1,285
Provider with most accurate pricing for Boston Logan Intl-Osaka Kansai Intl flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Osaka Kansai Intl flights.
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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. 18% potential increase in price ($300 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($53 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 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 April 29, 2025.

This oojo deal was found by Cheapflights users on 4/28. 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.
Sat 10/181:40 amBOS - KIX
2 stops24h 15mCathay Pacific
Tue 11/46:05 pmKIX - BOS
1 stop41h 55mCathay Pacific
Deal found 4/28$1,078
This Air Canada deal was found by Cheapflights users on 4/28. 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 11/196:10 amBOS - KIX
2 stops26h 05mMultiple Airlines
Sat 11/293:40 pmKIX - BOS
2 stops20h 57mMultiple Airlines
Deal found 4/28$1,103
This KAYAK deal was found by Cheapflights users on 4/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:00 amBOS - KIX
1 stop19h 50mANA
Tue 9/94:50 pmKIX - BOS
1 stop20h 06mANA
Deal found 4/28$1,167
This Gurufare deal was found by Cheapflights users on 4/28. 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.
Sun 10/1912:55 pmBOS - KIX
1 stop19h 05mKorean Air
Tue 11/46:10 pmKIX - BOS
1 stop28h 30mKorean Air
Deal found 4/28$1,202
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Mon 8/118:20 pmBOS - KIX
2 stops29h 30mUnited Airlines
Thu 8/214:55 pmKIX - BOS
2 stops20h 02mUnited Airlines
Deal found 4/28$1,204
This Air Canada deal was found by Cheapflights users on 4/27. 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 7/75:50 amBOS - KIX
2 stops21h 35mAir Canada
Mon 7/146:05 pmKIX - BOS
2 stops28h 50mAir Canada
Deal found 4/27$1,266
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 5/298:00 amBOS - KIX
1 stop21h 45mHawaiian Airlines
Wed 6/48:45 pmKIX - BOS
1 stop22h 15mHawaiian Airlines
Deal found 4/28$1,469
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 8/308:23 pmBOS - KIX
3 stops33h 22mAlaska Airlines
Sun 9/78:45 pmKIX - BOS
2 stops32h 18mAlaska Airlines
Deal found 4/28$1,526
This Singapore Airlines deal was found by Cheapflights users on 4/28. 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 4/28$1,595
This FlightHub deal was found by Cheapflights users on 4/28. 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.
Sun 12/288:00 pmBOS - KIX
1 stop32h 55mTurkish Airlines
Tue 1/1310:30 pmKIX - BOS
1 stop33h 35mTurkish Airlines
Deal found 4/28$1,606

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 April 29, 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

Thu 5/1

6:05 am-2:50 pm

1 stop19h 45m

Osaka Kansai Intl

Thu 5/15

4:50 pm-10:20 pm

1 stop18h 30m

$1,176

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 5/5

10:33 pm-10:15 pm

3 stops34h 42m

Osaka Kansai Intl

Tue 5/13

9:30 pm-7:03 am

3 stops46h 33m

$1,197

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 5/5

8:25 pm-2:50 pm

2 stops29h 25m

Osaka Kansai Intl

Tue 5/13

4:50 pm-5:39 am

3 stops25h 49m

$1,204

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 5/4

1:40 am-1:00 pm

1 stop22h 20m

Osaka Kansai Intl

Tue 5/13

6:35 pm-11:00 pm

1 stop41h 25m

$1,213

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 7/7

5:50 am-4:25 pm

2 stops21h 35m

Osaka Kansai Intl

Mon 7/14

6:05 pm-9:55 am

2 stops28h 50m

$1,266

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 5/27

12:55 pm-11:20 am

1 stop33h 25m

Osaka Kansai Intl

Tue 6/3

12:35 pm-10:20 am

1 stop34h 45m

$1,446

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 5/29

8:00 am-6:45 pm

1 stop21h 45m

Osaka Kansai Intl

Wed 6/4

8:45 pm-6:00 am

1 stop22h 15m

$1,469

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 5/17

9:35 pm-7:00 pm

1 stop32h 25m

Osaka Kansai Intl

Sat 6/28

10:25 pm-7:40 pm

1 stop34h 15m

$1,673

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 7/5

6:05 pm-9:00 pm

2 stops37h 55m

Osaka Kansai Intl

Sat 8/2

12:35 pm-6:40 am

2 stops31h 05m

$1,828

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Fri 5/16

4:30 pm-11:40 am

1 stop30h 10m

$546

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 16 results
1
2

Compare providers for flights from Boston to Kansai Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Kansai Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Osaka Kansai Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Osaka Kansai Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Boston-Osaka Kansai Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Osaka Kansai Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Osaka Kansai Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

How far ahead should I book a flight from Boston to Osaka Kansai Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Kansai Intl. Price data was last updated on April 25, 2025.

The price you pay for your flight from Boston to Osaka Kansai Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $898). Flying from Boston 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 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 April 29, 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 April 29, 2025.
EVA Air
8.4
Very good
1,184 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,184 reviews
EVA Air
8.4
Very good
1,184 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Korean Air
8.4
Very good
1,063 reviews
EVA Air
8.4
Very good
1,184 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
ANA
8.3
Very good
855 reviews
EVA Air
8.4
Very good
1,184 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Alaska Airlines
8.0
Very good
9,949 reviews
EVA Air
8.4
Very good
1,184 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Delta
8.0
Very good
7,929 reviews
EVA Air
8.4
Very good
1,184 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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 ANA is currently your cheapest option to Osaka Kansai Intl Airport, with prices starting at $1,176. Additional round-trip tickets that might be worth considering are offered by United Airlines and Cathay Pacific, with the lowest prices starting at $1,204 and $1,213, respectively. ANA is currently priced 10% 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 Etihad Airways, which is currently one of the cheapest options available, starting at $546. Alaska Airlines flights start at $668 while deals on United Airlines start at $674 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 $898). Flying from Boston 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

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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 April 29, 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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