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Kansai Intl

$340+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — KIX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$660
(United Airlines)

One-way from

$340
(FlightHub)
From Boise Air Term. Gowen Fld to Osaka Kansai Intl
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One-way flight from Boise Air Term. Gowen Fld to Osaka Kansai Intl
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:45 amBOI - KIX
1 stop16h 05mUnited Airlines
Thu 10/24:50 pmKIX - BOI
1 stop17h 25mUnited Airlines
Deal found 9/9$669
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:00 pmBOI - KIX
2 stops34h 00mKorean Air
Sat 11/111:55 amKIX - BOI
2 stops19h 27mKorean Air
Deal found 9/10$1,014
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/255:39 pmBOI - KIX
2 stops32h 01mUnited Airlines
Sat 11/16:35 pmKIX - BOI
1 stop19h 53mUnited Airlines
Deal found 9/10$1,115
This Qatar Airways deal was found by Cheapflights users on 9/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2511:19 amBOI - KIX
2 stops38h 06mMultiple Airlines
Sat 11/19:55 amKIX - BOI
3 stops46h 22mMultiple Airlines
Deal found 9/10$3,017
This Qatar Airways deal was found by Cheapflights users on 9/9. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:10 amBOI - KIX
3 stops57h 15mMultiple Airlines
Thu 10/26:55 pmKIX - BOI
2 stops41h 53mMultiple Airlines
Deal found 9/9$3,374

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 September 11, 2025.
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

Wed 1/28

7:25 am-6:15 pm

2 stops18h 50m

Osaka Kansai Intl

Fri 2/6

2:05 pm-7:51 pm

2 stops21h 46m

$660

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Thu 9/25

7:45 am-2:50 pm

1 stop16h 05m

Osaka Kansai Intl

Thu 10/2

4:50 pm-7:15 pm

1 stop17h 25m

$669

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Wed 1/28

2:20 pm-4:40 pm

1 stop34h 20m

Osaka Kansai Intl

Fri 2/6

8:20 am-11:48 pm

2 stops31h 28m

$709

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Thu 1/29

7:25 am-4:40 pm

1 stop17h 15m

Osaka Kansai Intl

Mon 2/2

6:35 pm-9:23 pm

1 stop18h 48m

$778

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Thu 1/29

5:40 am-12:50 pm

2 stops39h 10m

Osaka Kansai Intl

Mon 2/2

9:00 am-8:13 pm

2 stops27h 13m

$793

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Tue 11/18

6:15 am-5:40 pm

2 stops43h 25m

$340

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Sun 1/4

7:35 am-10:45 am

2 stops35h 10m

$468

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Sun 1/4

8:00 am-8:25 am

2 stops32h 25m

$547

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Tue 11/18

6:20 am-4:40 pm

1 stop18h 20m

$660

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

Sun 1/4

2:10 pm-4:40 pm

1 stop34h 30m

$874

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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 September 11, 2025.
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
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 16h 05m. 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.

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

    Currently, February is the cheapest month in which you can book a flight from Boise to Osaka Kansai Intl Airport (average of $866). Flying from Boise to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,310). 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

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$597Average$1,070FlexibilityNo cancel feeOn-time69%

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