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Kansai Intl

$408+ Cheap flights from Boise (BOI) 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — KIX
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Boise to Kansai Intl

Cheapest flights from Boise to Kansai Intl
Explore the most affordable flight options available from Boise to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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 1/307:45 am
BOI
-
KIX
1 stop16h 55m
United Airlines
Thu 2/58:20 am
KIX
-
BOI
2 stops31h 28m
United Airlines
Deal found 1/26$713
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/278:41 am
BOI
-
KIX
1 stop15h 59m
United Airlines
Sat 3/76:35 pm
KIX
-
BOI
2 stops30h 31m
United Airlines
Deal found 1/26$832
This Korean Air deal was found by Cheapflights users on 1/26. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:38 am
BOI
-
KIX
2 stops33h 42m
Korean Air
Sun 8/239:05 am
KIX
-
BOI
2 stops28h 59m
Korean Air
Deal found 1/26$833
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Tue 9/86:20 am
BOI
-
KIX
1 stop17h 30m
United Airlines
Fri 9/188:30 am
KIX
-
BOI
2 stops30h 29m
United Airlines
Deal found 1/25$845
This oojo deal was found by Cheapflights users on 1/25. 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.
Tue 9/87:12 pm
BOI
-
KIX
2 stops27h 48m
STARLUX Airlines
Fri 9/181:25 pm
KIX
-
BOI
2 stops25h 46m
STARLUX Airlines
Deal found 1/25$849
This oojo deal was found by Cheapflights users on 1/25. 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.
Tue 8/116:15 pm
BOI
-
KIX
2 stops27h 00m
STARLUX Airlines
Sun 8/233:10 pm
KIX
-
BOI
2 stops22h 37m
STARLUX Airlines
Deal found 1/25$872
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Sun 2/158:41 am
BOI
-
KIX
1 stop15h 59m
United Airlines
Thu 2/198:20 am
KIX
-
BOI
2 stops28h 51m
United Airlines
Deal found 1/26$890
This Korean Air deal was found by Cheapflights users on 1/26. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/97:05 am
BOI
-
KIX
2 stops22h 40m
Korean Air
Tue 3/3112:35 pm
KIX
-
BOI
2 stops24h 06m
Korean Air
Deal found 1/26$932

Find flight deals from Boise to Kansai Intl

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$832
(United Airlines)

One-way from

$408
(United Airlines)
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Osaka Kansai Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Osaka Kansai Intl flights.
Search Deals
From Boise Air Term. Gowen Fld to Osaka Kansai Intl
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Osaka Kansai Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise 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 January 27, 2026.
Use the filters below to find and compare flights from Boise to Osaka Kansai Intl Airport that are best for you.

Fly from

Boise

Fly to

Kansai Intl

Route

Depart

Return

Price

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Fri 2/27

8:41 am-4:40 pm

1 stop15h 59m

Osaka Kansai Intl

Sat 3/7

6:35 pm-9:06 am

2 stops30h 31m

$832

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Sun 2/15

8:41 am-4:40 pm

1 stop15h 59m

Osaka Kansai Intl

Thu 2/19

8:20 am-8:55 pm

2 stops28h 35m

$890

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Mon 3/9

7:05 am-8:45 pm

2 stops22h 40m

Osaka Kansai Intl

Tue 3/31

12:35 pm-9:41 pm

2 stops24h 06m

$932

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Mon 3/9

6:24 am-4:40 pm

1 stop19h 16m

Osaka Kansai Intl

Tue 3/31

8:30 am-8:13 pm

2 stops50h 43m

$1,052

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Mon 3/9

8:39 am-4:40 pm

1 stop17h 01m

Osaka Kansai Intl

Tue 3/31

4:55 pm-3:28 pm

1 stop13h 33m

$1,057

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Sun 4/19

6:15 am-2:50 pm

1 stop17h 35m

$408

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Sun 4/19

10:41 am-9:00 pm

2 stops19h 19m

$418

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Sun 3/29

6:04 pm-12:15 pm

2 stops27h 11m

$582

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Sun 4/19

7:05 pm-2:55 pm

3 stops28h 50m

$757

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

  • Most accurate provider: When it comes to deals on Boise-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 Boise-Osaka Kansai Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Osaka Kansai Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-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 Boise-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 Boise to Kansai Intl

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

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 January 27, 2026.
See what other customers who have flown with United Airlines from Boise to Osaka Kansai Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,205 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,205 reviews
United Airlines
7.4
Good
9,205 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Boise 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 Boise to Osaka Kansai Intl?

    Boise Air Term. Gowen Fld (BOI) is the airport you will fly out of if you book a flight from Boise to Osaka Kansai Intl. You should not have trouble finding flights to Osaka Kansai Intl from Air Term. Gowen Fld; the airport handles an average of 0 outbound flights to Osaka Kansai Intl per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Boise airport to Osaka Kansai Intl. It is only a 3.3 mi journey to Air Term. Gowen Fld (BOI) from Boise’s city center.

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

    Departing from Boise to Osaka Kansai Intl Airport will take you 15h 59m. The distance from Boise to Osaka Kansai Intl Airport is about 5419 mi.

  • What is the cheapest airline to fly from Boise to Osaka Kansai Intl Airport round-trip?

    Currently priced at $597, United Airlines will fly you from Boise to Osaka Kansai Intl Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise 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.

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
Nara
Izumisano
Himeji

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Top airline flying from Boise to Kansai Intl

Discover the top airline that operate flights from Boise 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$597Average$903FlexibilityNo cancel feeOn-time69%

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