BOI - KIX

$414 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 3/10. 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
$978
Korean Air
Mon 3/9Wed 3/25
BOI - KIX • 2 stops
Cheapest one-way
$414
Multiple Airlines
Tue 3/10
BOI - KIX • 2 stops
Top airlines
Korean Air
Cheapest • from $978 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Mon, Mar 9 - Wed, Mar 25
Korean Air Logo
7:05 am - 8:45 pm
BOI
-
KIX
22h 40m
2 stops
Korean Air Logo
2:00 pm - 9:35 pm
KIX
-
BOI
22h 35m
2 stops
$978Korean Air
Sun, Mar 8 - Wed, Mar 25
Korean Air Logo
7:05 am - 10:45 am
BOI
-
KIX
36h 40m
2 stops
Korean Air Logo
2:00 pm - 9:35 pm
KIX
-
BOI
22h 35m
2 stops
$986Korean Air
Wed, Jul 1 - Fri, Jul 10
United Airlines Logo
7:00 am - 2:50 pm
BOI
-
KIX
40h 50m
2 stops
United Airlines Logo
4:55 pm - 9:49 am
KIX
-
BOI
31h 54m
2 stops
$1,082United Airlines
Mon, Mar 9 - Thu, Mar 26
STARLUX Airlines Logo
6:00 pm - 11:10 am
BOI
-
KIX
26h 10m
2 stops
STARLUX Airlines Logo
12:20 pm - 10:57 pm
KIX
-
BOI
25h 37m
2 stops
$1,116STARLUX Airlines
Mon, Mar 9 - Mon, Mar 30
Korean Air Logo
7:05 am - 8:45 pm
BOI
-
KIX
22h 40m
2 stops
Korean Air Logo
2:15 am - 4:00 pm
KIX
-
BOI
28h 45m
2 stops
$1,128Korean Air
Tue, Mar 10 - Thu, Mar 26
STARLUX Airlines Logo
6:00 pm - 11:10 am
BOI
-
KIX
26h 10m
2 stops
STARLUX Airlines Logo
12:20 pm - 11:56 pm
KIX
-
BOI
26h 36m
2 stops
$1,136STARLUX Airlines
Mon, Mar 9 - Mon, Mar 30
Korean Air Logo
7:05 am - 8:45 pm
BOI
-
KIX
22h 40m
2 stops
Korean Air Logo
2:15 am - 6:43 pm
KIX
-
BOI
31h 28m
2 stops
$1,180Korean Air
Wed, Jul 1 - Fri, Jul 10
United Airlines Logo
7:00 am - 2:50 pm
BOI
-
KIX
40h 50m
2 stops
United Airlines Logo
4:55 pm - 4:42 pm
KIX
-
BOI
14h 47m
1 stop
$1,199United Airlines
Tue, Mar 10 - Tue, Mar 24
ANA Logo
8:39 am - 4:40 pm
BOI
-
KIX
17h 01m
1 stop
ANA Logo
7:00 pm - 4:49 pm
KIX
-
BOI
36h 49m
2 stops
$1,215ANA
Mon, Mar 9 - Tue, Mar 31
EVA Air Logo
1:25 pm - 9:55 am
BOI
-
KIX
29h 30m
2 stops
EVA Air Logo
11:10 am - 11:56 pm
KIX
-
BOI
27h 46m
2 stops
$1,233EVA Air
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 Korean Air ($978) and United Airlines ($1,082).

Find deals

Good to know

Cheapest flight$414
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 $414 for a one-way ticket and $978 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 9296 reviews
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
7.7Boarding
Airline reviews

Both the WIFI and entertainment did not work for 2.5h

6.0 GoodAnonymous, Feb 2026
HNL - NRT
Read more United Airlines reviews

Both the WIFI and entertainment did not work for 2.5h

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

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)