HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kansai Intl

$733+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — KIX
jun. 23 — jun. 301
lun. 6/23
lun. 6/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 junio 18, 2025.

Round-trip from

$733
(United Airlines)
From Boise Air Term. Gowen Fld to Osaka Kansai Intl
Search Deals

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 junio 18, 2025.

This United Airlines deal was found by Cheapflights users on 6/15. 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.
mar. 9/27:45 amBOI - KIX
1 stop16h 05mUnited Airlines
mar. 10/288:25 amKIX - BOI
2 stops30h 03mUnited Airlines
Deal found 6/15$733
This Gurufare deal was found by Cheapflights users on 6/17. 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.
jue. 7/1710:47 amBOI - KIX
2 stops19h 13mKorean Air
jue. 7/2412:35 pmKIX - BOI
2 stops18h 05mKorean Air
Deal found 6/17$910
This FlightHub deal was found by Cheapflights users on 6/17. 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.
jue. 7/177:51 amBOI - KIX
1 stop15h 59mANA
jue. 7/244:55 pmKIX - BOI
1 stop14h 45mANA
Deal found 6/17$913
This Expedia deal was found by Cheapflights users on 6/16. 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.
jue. 7/317:51 amBOI - KIX
1 stop15h 59mMultiple Airlines
jue. 8/79:05 amKIX - BOI
2 stops28h 52mMultiple Airlines
Deal found 6/16$1,083

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 junio 18, 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

mar. 9/2

7:45 am-2:50 pm

1 stop16h 05m

Osaka Kansai Intl

mar. 10/28

8:25 am-11:28 pm

2 stops30h 03m

$733

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

jue. 7/17

10:47 am-9:00 pm

2 stops19h 13m

Osaka Kansai Intl

jue. 7/24

12:35 pm-3:40 pm

2 stops18h 05m

$910

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

jue. 7/17

7:51 am-2:50 pm

1 stop15h 59m

Osaka Kansai Intl

jue. 7/24

4:55 pm-4:40 pm

1 stop14h 45m

$913

BoiseOsaka

BOI - KIX

BOIKIX

Boise Air Term. Gowen Fld

jue. 7/31

7:51 am-2:50 pm

1 stop15h 59m

Osaka Kansai Intl

jue. 8/7

9:05 am-10:57 pm

2 stops28h 52m

$1,083

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

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.

Cheapflights Insights

Everything you need to know about your flight from Boise to Osaka Kansai Intl Airport

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 junio 18, 2025.
Korean Air
8.4
Very good
1,090 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,090 reviews
Korean Air
8.4
Very good
1,090 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very good
886 reviews
Korean Air
8.4
Very good
1,090 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
8,810 reviews
Korean Air
8.4
Very good
1,090 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

  • What are the cheapest airlines flying from Boise to Osaka Kansai Intl Airport round-trip?

    Currently priced at $733, 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. Search Cheapflights for deals from Korean Air and ANA - these airlines can fly you to your destination from $910 and $913, respectively.

  • 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 $887). Flying from Boise to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,323). 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 Boise?

Book flights to Boise if you plan to visit one of these locations
Izumisano
Nara
Nishinomiya
Himeji

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 junio 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$597Average$1,083FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.