BOI - KIX

$456 Find Cheap Flights from Boise to Osaka

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Kansai Intl departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Osaka Kansai Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Osaka, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Osaka, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$855
United Airlines
Wed 4/29Sat 5/9
BOI - KIX • 1 stop
Cheapest one-way
$447
ANA
Sun 3/1
BOI - KIX • 1 stop
Top airlines
United Airlines
Cheapest • from $855 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boise and Kansai Intl. You'll need at least 1 connection.
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Kansai Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Kansai Intl (BOI-KIX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Kansai Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Kansai Intl

Wed, Apr 29 - Sat, May 9
United Airlines Logo
6:15 am - 2:50 pm
BOI
-
KIX
17h 35m
1 stop
United Airlines Logo
4:55 pm - 4:48 pm
KIX
-
BOI
14h 53m
1 stop
$855United Airlines
Wed, Apr 29 - Sat, May 9
United Airlines Logo
6:15 am - 2:50 pm
BOI
-
KIX
17h 35m
1 stop
United Airlines Logo
4:55 pm - 10:16 pm
KIX
-
BOI
20h 21m
2 stops
$860United Airlines
Mon, Apr 13 - Thu, Apr 23
STARLUX Airlines Logo
6:04 pm - 2:00 pm
BOI
-
KIX
28h 56m
2 stops
STARLUX Airlines Logo
1:25 pm - 11:59 pm
KIX
-
BOI
25h 34m
2 stops
$865STARLUX Airlines
Wed, Apr 29 - Sat, May 9
Korean Air Logo
10:41 am - 5:05 pm
BOI
-
KIX
39h 24m
2 stops
Korean Air Logo
12:35 pm - 10:58 pm
KIX
-
BOI
25h 23m
2 stops
$874Korean Air
Wed, Apr 29 - Fri, May 8
Korean Air Logo
10:41 am - 10:40 pm
BOI
-
KIX
20h 59m
2 stops
Korean Air Logo
2:15 am - 10:54 pm
KIX
-
BOI
35h 39m
2 stops
$875Korean Air
Wed, Apr 29 - Sat, May 9
United Airlines Logo
7:11 am - 2:50 pm
BOI
-
KIX
40h 39m
2 stops
United Airlines Logo
4:55 pm - 9:17 pm
KIX
-
BOI
19h 22m
2 stops
$912United Airlines
Wed, Apr 15 - Sat, Apr 25
STARLUX Airlines Logo
6:04 pm - 2:00 pm
BOI
-
KIX
28h 56m
2 stops
STARLUX Airlines Logo
1:25 pm - 11:59 pm
KIX
-
BOI
25h 34m
2 stops
$969STARLUX Airlines
Mon, Mar 9 - Tue, Mar 31
Korean Air Logo
7:05 am - 8:45 pm
BOI
-
KIX
22h 40m
2 stops
Korean Air Logo
12:35 pm - 9:41 pm
KIX
-
BOI
24h 06m
2 stops
$1,009Korean Air
Mon, Mar 9 - Tue, Mar 31
United Airlines Logo
12:59 pm - 4:40 pm
BOI
-
KIX
36h 41m
1 stop
United Airlines Logo
4:55 pm - 1:31 pm
KIX
-
BOI
35h 36m
2 stops
$1,055United Airlines
Mon, Mar 9 - Tue, Mar 31
United Airlines Logo
12:59 pm - 4:40 pm
BOI
-
KIX
36h 41m
1 stop
United Airlines Logo
4:55 pm - 11:06 am
KIX
-
BOI
33h 11m
1 stop
$1,058United Airlines
Booking Insights

KAYAK's insights & trends for Boise to Kansai Intl flights

Get data-powered insights and trends into flights from Boise to Kansai Intl to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boise to Osaka?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boise to Osaka were found on United Airlines ($855) and STARLUX Airlines ($865).

Find deals

Good to know

Cheapest flight$447
Flight from Boise to Osaka

When to book flights from Boise to Kansai Intl

Are your dates flexible? Find out the best times to travel from Boise to Kansai Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Boise to Osaka flights

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

    In the last 3 days, the lowest price for a flight from Boise to Osaka Kansai Intl Airport was $447 for a one-way ticket and $855 for a round-trip.

  • Do I need a passport to fly between Boise and Osaka?

    Yes

  • Which aircraft models fly most regularly from Boise to Osaka?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to Osaka?

    Star Alliance is the only airline alliance operating flights between Boise and Osaka.

  • How does KAYAK find such low prices on flights from Boise to Osaka?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to Osaka.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Osaka?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Osaka from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to Osaka?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Osaka with an airline and back to Boise with another airline. Booking your flights between Boise and KIX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Osaka?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Osaka from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boise to Kansai Intl

 
See real verified KAYAK customer reviews for airlines flying from Boise to Osaka. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to Kansai Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9335 reviews
7.7Boarding
8.1Crew
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

10.0 ExcellentElizabeth, Feb 2026
ATL - IAH
Read more United Airlines reviews

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

As great a red-eye flight as red-eye flights can be.

Once boarding started it was pretty quick. Food was inedible; cold and salty..

Entertainment kept turning itself off. Gave up on watching a movie.

Both the WIFI and entertainment did not work for 2.5h

Everything you need to know for your flight from Boise to Kansai Intl

Information on your arrival and departure airports

Boise (BOI)
Kansai Intl (KIX)