$500+ Cheap flights from Boise (BOI) to Kansai Intl (KIX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — KIX
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Boise to Kansai Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boise to Kansai Intl
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Best
Last-minute
One-way
Cheapest flights from Boise to Kansai IntlExplore 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 10, 2026.
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 10, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:10 am -
1 stop15h 40m
Fri 9/254:55 pm -
1 stop13h 36m
Deal found 9/9![ANA logo]()
$1,080
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.
Sun 9/208:10 am -
1 stop15h 40m
Fri 9/254:55 pm -
2 stops31h 38m
Deal found 9/9![United Airlines logo]()
$1,110
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/244:00 pm -
2 stops39h 40m
Sat 10/3111:55 am -
2 stops18h 25m
Deal found 9/9![Korean Air logo]()
$1,182
This Expedia deal was found by Cheapflights users on 9/7. 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.
Thu 10/228:22 pm -
2 stops25h 28m
Thu 10/297:00 pm -
2 stops19h 59m
Deal found 9/7![Multiple Airlines logo]()
$1,224
This Travelocity deal was found by Cheapflights users on 9/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:57 am -
2 stops34h 13m
Thu 3/412:55 pm -
2 stops23h 59m
Deal found 9/8![Multiple Airlines logo]()
$1,258
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/228:15 am -
1 stop15h 35m
Thu 10/296:35 pm -
1 stop19h 58m
Deal found 9/7![United Airlines logo]()
$1,271
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.
Sat 10/245:30 pm -
2 stops32h 15m
Sat 10/316:35 pm -
1 stop19h 58m
Deal found 9/9![United Airlines logo]()
$1,276
Best flights from Boise to Kansai IntlDiscover carefully curated flight deals from Boise to Kansai Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Boise to Kansai Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
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.
Tue 1/126:10 am -
1 stop18h 35m
Thu 1/283:20 pm -
2 stops22h 00m
Deal found 9/9![United Airlines logo]()
$977
This Korean Air deal was found by Cheapflights users on 9/6. 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 1/127:15 am -
2 stops21h 30m
Thu 1/289:00 am -
2 stops23h 00m
Deal found 9/6![Korean Air logo]()
$993
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:10 am -
1 stop15h 40m
Fri 9/253:50 pm -
2 stops42h 39m
Deal found 9/9![ANA logo]()
$1,103
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:05 am -
2 stops19h 40m
Fri 9/255:45 pm -
2 stops19h 18m
Deal found 9/9![American Airlines logo]()
$1,110
This Korean Air deal was found by Cheapflights users on 9/6. 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 2/17:15 am -
2 stops21h 30m
Mon 2/156:10 pm -
2 stops37h 50m
Deal found 9/6![Korean Air logo]()
$993
This United Airlines deal was found by Cheapflights users on 9/8. 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 1/305:26 pm -
2 stops31h 19m
Wed 2/36:35 pm -
1 stop18h 45m
Deal found 9/8![United Airlines logo]()
$1,045
Last-minute flights from Boise to Kansai IntlDiscover last-minute flight deals from Boise to Kansai Intl. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Kansai Intl. Data last updated September 10, 2026 and is based on user searches.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:10 am -
1 stop15h 40m
Fri 9/254:55 pm -
1 stop13h 36m
Deal found 9/9![ANA logo]()
$1,080
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.
Sun 9/208:10 am -
1 stop15h 40m
Fri 9/254:55 pm -
2 stops31h 38m
Deal found 9/9![United Airlines logo]()
$1,110
This Travelocity deal was found by Cheapflights users on 9/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:57 am -
2 stops34h 13m
Thu 3/412:55 pm -
2 stops23h 59m
Deal found 9/8![Multiple Airlines logo]()
$1,258
This Expedia deal was found by Cheapflights users on 9/7. 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.
Thu 10/228:22 pm -
2 stops25h 28m
Thu 10/297:00 pm -
2 stops19h 59m
Deal found 9/7![Multiple Airlines logo]()
$1,224
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/228:15 am -
1 stop15h 35m
Thu 10/296:35 pm -
1 stop19h 58m
Deal found 9/7![United Airlines logo]()
$1,271
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/244:00 pm -
2 stops39h 40m
Sat 10/3111:55 am -
2 stops18h 25m
Deal found 9/9![Korean Air logo]()
$1,182
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.
Sat 10/245:30 pm -
2 stops32h 15m
Sat 10/316:35 pm -
1 stop19h 58m
Deal found 9/9![United Airlines logo]()
$1,276
One-way flights from Boise to Kansai IntlSearch for one-way flight options from Boise to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Boise to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Delta deal was found by Cheapflights users on 9/6. 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.
Mon 12/76:35 am -
2 stops24h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$500
This FlightHub deal was found by Cheapflights users on 9/6. 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.
Mon 12/78:18 am -
1 stop18h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$604
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $977 (United Airlines) |
One-way from | $500 (Delta) |
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 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Boise to Osaka Kansai Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BoiseOsaka
BOI Boise Air Term. Gowen Fld - KIX Osaka Kansai Intl
BOIKIX
Boise Air Term. Gowen Fld
Mon 12/7
8:18 am-7:10 pm
1 stop18h 52m
Osaka Kansai Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$604
BoiseOsaka
BOI Boise Air Term. Gowen Fld - KIX Osaka Kansai Intl
BOIKIX
Boise Air Term. Gowen Fld
Tue 1/12
6:10 am-4:45 pm
1 stop18h 35m
Osaka Kansai Intl
Thu 1/28
3:20 pm-9:20 pm
2 stops22h 00m
$977
BoiseOsaka
BOI Boise Air Term. Gowen Fld - KIX Osaka Kansai Intl
BOIKIX
Boise Air Term. Gowen Fld
Tue 1/12
7:15 am-8:45 pm
2 stops21h 30m
Osaka Kansai Intl
Thu 1/28
9:00 am-4:00 pm
2 stops23h 00m
$993
BoiseOsaka
BOI Boise Air Term. Gowen Fld - KIX Osaka Kansai Intl
BOIKIX
Boise Air Term. Gowen Fld
Mon 2/1
7:15 am-8:45 pm
2 stops21h 30m
Osaka Kansai Intl
Mon 2/15
6:10 pm-4:00 pm
2 stops37h 50m
$993
BoiseOsaka
BOI Boise Air Term. Gowen Fld - KIX Osaka Kansai Intl
BOIKIX
Boise Air Term. Gowen Fld
Sat 1/30
5:26 pm-4:45 pm
2 stops31h 19m
Osaka Kansai Intl
Wed 2/3
6:35 pm-9:20 pm
1 stop18h 45m
$1,045
BoiseOsaka
BOI Boise Air Term. Gowen Fld - KIX Osaka Kansai Intl
BOIKIX
Boise Air Term. Gowen Fld
Sun 9/20
8:10 am-2:50 pm
1 stop15h 40m
Osaka Kansai Intl
Fri 9/25
3:50 pm-7:29 pm
2 stops42h 39m
$1,103
BoiseOsaka
BOI Boise Air Term. Gowen Fld - KIX Osaka Kansai Intl
BOIKIX
Boise Air Term. Gowen Fld
Sun 9/20
8:05 am-6:45 pm
2 stops19h 40m
Osaka Kansai Intl
Fri 9/25
5:45 pm-10:03 pm
2 stops19h 18m
$1,110
Sorted by cheapest first
- 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.
BOI-KIX
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.
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.
Traveling to a place near Osaka Kansai Intl Airport?
Book flights to Osaka Kansai Intl Airport if you plan to visit one of these locationsNara
Izumisano
Himeji
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