BOI - KIX

$390 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 1/1. 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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Everything you should know

Cheapest round-trip
$690
Korean Air
Mon 3/9Tue 3/31
BOI - KIX • 2 stops
Cheapest one-way
$390
United Airlines
Thu 1/1
BOI - KIX • 1 stop
Top airlines
Korean Air
Cheapest • from $690 (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 - Tue, Mar 31
Korean Air Logo
7:00 am - 8:45 pm
BOI
-
KIX
22h 45m2 stops
Korean Air Logo
6:20 pm - 4:00 pm
KIX
-
BOI
36h 40m2 stops
$690Korean Air
Sun, Feb 1 - Wed, Feb 11
ANA Logo
7:45 am - 4:40 pm
BOI
-
KIX
16h 55m1 stop
ANA Logo
8:20 am - 4:10 pm
KIX
-
BOI
23h 50m2 stops
$701ANA
Sun, Feb 1 - Wed, Feb 11
ANA Logo
7:45 am - 4:40 pm
BOI
-
KIX
16h 55m1 stop
ANA Logo
6:35 pm - 4:10 pm
KIX
-
BOI
13h 35m1 stop
$704ANA
Fri, Jan 30 - Fri, Feb 6
United Airlines Logo
7:45 am - 4:40 pm
BOI
-
KIX
16h 55m1 stop
United Airlines Logo
6:35 pm - 4:10 pm
KIX
-
BOI
13h 35m1 stop
$711United Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
7:45 am - 4:40 pm
BOI
-
KIX
16h 55m1 stop
United Airlines Logo
8:20 am - 4:10 pm
KIX
-
BOI
23h 50m2 stops
$713United Airlines
Fri, Jan 30 - Fri, Feb 6
United Airlines Logo
5:16 pm - 4:40 pm
BOI
-
KIX
31h 24m2 stops
United Airlines Logo
6:35 pm - 10:06 am
KIX
-
BOI
31h 31m2 stops
$715United Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
5:16 pm - 4:40 pm
BOI
-
KIX
31h 24m2 stops
United Airlines Logo
8:20 am - 4:10 pm
KIX
-
BOI
23h 50m2 stops
$718United Airlines
Fri, Jan 30 - Fri, Feb 6
ANA Logo
7:45 am - 4:40 pm
BOI
-
KIX
16h 55m1 stop
ANA Logo
6:35 pm - 4:10 pm
KIX
-
BOI
13h 35m1 stop
$726ANA
Sat, Jan 31 - Sat, Feb 7
ANA Logo
7:45 am - 4:40 pm
BOI
-
KIX
16h 55m1 stop
ANA Logo
6:35 pm - 4:10 pm
KIX
-
BOI
13h 35m1 stop
$727ANA
Fri, Jan 30 - Tue, Feb 3
Korean Air Logo
9:15 am - 12:50 pm
BOI
-
KIX
35h 35m2 stops
Korean Air Logo
9:00 am - 6:28 pm
KIX
-
BOI
25h 28m2 stops
$730Korean 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 ($690) and ANA ($704).

Which airlines fly non-stop between Boise and Osaka Kansai Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Boise to Osaka Kansai Intl Airport.

There is just one airline that flies from Boise to Osaka Kansai Intl Airport direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is $597.

Find deals

Good to know

Cheapest flight$390
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 $390 for a one-way ticket and $690 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 9091 reviews
8.1Crew
7.7Boarding
6.6Food
7.1Entertainment
7.3Comfort
Airline reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

10.0 ExcellentRoger, Dec 2025
CAE - ORD
Read more United Airlines reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

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)