Kansai Intl

$458+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KIX
Feb 10 — Feb 171
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Find cheap flights from Boston to Kansai Intl with Cheapflights

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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 February 5, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$943
(United Airlines)

One-way from

$458
(Air Canada)

Popular in

July

Cheapest in

September

Average price

$1,066
Provider with most accurate pricing for Boston Logan Intl-Osaka Kansai Intl flight deals.
Provider most trusted by Cheapflights users for Boston Logan Intl-Osaka Kansai Intl flights.
From Boston Logan Intl to Osaka Kansai Intl
One-way flight from Boston Logan Intl to Osaka Kansai Intl
Highest demand for flights based on searches. 17% potential increase in price ($295 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($57 potential savings vs. average RT price).
Average for round-trip flights in February 2025

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 February 5, 2025.

This United Airlines deal was found by Cheapflights users on 2/4. 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.
Sat 2/155:54 pmBOS - KIX
1 stop32h 41mUnited Airlines
Tue 2/256:30 pmKIX - BOS
1 stop27h 27mUnited Airlines
Deal found 2/4$943
This KAYAK deal was found by Cheapflights users on 2/4. 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.
Tue 2/115:45 amBOS - KIX
2 stops26h 30mANA
Fri 2/286:30 pmKIX - BOS
1 stop17h 19mANA
Deal found 2/4$956
This Justfly.com deal was found by Cheapflights users on 2/4. 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.
Sun 6/16:00 amBOS - KIX
2 stops21h 25mAir Canada
Sat 6/76:05 pmKIX - BOS
2 stops28h 30mAir Canada
Deal found 2/4$998
This oojo deal was found by Cheapflights users on 2/3. 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.
Sun 3/91:30 amBOS - KIX
1 stop22h 15mCathay Pacific
Mon 3/249:25 amKIX - BOS
1 stop26h 35mCathay Pacific
Deal found 2/3$999
This United Airlines deal was found by Cheapflights users on 2/5. 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.
Fri 5/97:00 amBOS - KIX
2 stops20h 50mMultiple Airlines
Thu 5/224:50 pmKIX - BOS
2 stops21h 09mMultiple Airlines
Deal found 2/5$1,072
This KAYAK deal was found by Cheapflights users on 2/4. 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.
Sat 3/225:05 pmBOS - KIX
2 stops35h 05mKorean Air
Thu 4/106:20 pmKIX - BOS
1 stop29h 00mKorean Air
Deal found 2/4$1,142
This FlightHub deal was found by Cheapflights users on 2/4. 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.
Fri 2/76:40 pmBOS - KIX
2 stops27h 20mHainan Airlines
Sat 3/12:00 pmKIX - BOS
1 stop39h 00mHainan Airlines
Deal found 2/4$1,270
This Delta deal was found by Cheapflights users on 2/5. 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.
Sun 10/2612:00 pmBOS - KIX
1 stop20h 00mDelta
Wed 11/122:00 pmKIX - BOS
2 stops25h 06mDelta
Deal found 2/5$1,281

Find flights from Boston to Kansai Intl within your budget

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 February 5, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 2/15

5:54 pm-4:35 pm

1 stop32h 41m

Osaka Kansai Intl

Tue 2/25

6:30 pm-7:57 am

1 stop27h 27m

$943

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 2/17

5:45 am-9:50 pm

2 stops26h 05m

Osaka Kansai Intl

Thu 2/27

6:30 pm-9:49 pm

1 stop17h 19m

$956

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 6/1

6:00 am-4:25 pm

2 stops21h 25m

Osaka Kansai Intl

Sat 6/7

6:05 pm-9:35 am

2 stops28h 30m

$998

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 3/9

1:30 am-12:45 pm

1 stop22h 15m

Osaka Kansai Intl

Mon 3/24

9:25 am-11:00 pm

1 stop26h 35m

$999

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 3/4

1:30 pm-4:35 pm

1 stop37h 05m

Osaka Kansai Intl

Mon 3/10

6:30 pm-8:02 am

1 stop26h 32m

$1,090

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 7/20

6:30 am-1:20 pm

2 stops41h 50m

Osaka Kansai Intl

Sat 7/26

9:30 am-9:57 pm

2 stops25h 27m

$1,115

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 3/10

12:00 pm-9:00 pm

1 stop20h 00m

Osaka Kansai Intl

Mon 3/17

6:25 pm-9:40 am

1 stop28h 15m

$1,136

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 2/16

6:40 pm-12:00 pm

2 stops27h 20m

Osaka Kansai Intl

Sat 3/1

2:00 pm-3:00 pm

1 stop39h 00m

$1,285

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 3/23

12:00 pm-9:00 pm

1 stop20h 00m

Osaka Kansai Intl

Tue 4/8

12:35 pm-6:03 am

2 stops30h 28m

$1,353

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 4/13

3:40 pm-4:25 pm

2 stops35h 45m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Showing 1-10 of 25 results
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Osaka Kansai Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Boston to Kansai Intl

Get recent, data-driven insights about flights from Boston to Kansai Intl including ideal travel times, pricing trends, and more.

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 January 31, 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 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 February 5, 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 February 5, 2025.
See what other customers who have flown with ANA, Korean Air and Singapore 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.
8.4
Very good

Comfort

8.2

Crew

8.7

Overall

8.4

Entertainment

7.9

Food

7.7

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

Anonymous,Feb 2025

HND - MNL

Great experience! Affordable economy seat with plenty of leg room, foot rest, nice meal, entertainment and excellent flight attendants!

8.4
Very good
8.4
Very good

Comfort

8.2

Crew

8.7

Overall

8.4

Entertainment

7.9

Food

7.7

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

Anonymous,Feb 2025

HND - MNL

Great experience! Affordable economy seat with plenty of leg room, foot rest, nice meal, entertainment and excellent flight attendants!

8.4
Very good

Comfort

8.2

Crew

8.7

Overall

8.4

Entertainment

7.9

Food

7.7

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

Anonymous,Feb 2025

HND - MNL

Great experience! Affordable economy seat with plenty of leg room, foot rest, nice meal, entertainment and excellent flight attendants!

8.4
Very good

Comfort

8.2

Crew

8.7

Overall

8.4

Entertainment

7.9

Food

7.7

Boarding

8.5

Reviews

1 / 20