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$333+ Cheap flights from Idaho to Japan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FUK
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheap flight deals from Idaho to Japan

Keep the following information in mind while searching for Idaho to Japan flight deals. Data was last updated August 1, 2025.

Round-trip from

$654
(Hawaiian Airlines)

One-way from

$333
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$982
From Idaho to Japan
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One-way flight from Idaho to Japan
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Highest demand for flights based on searches. 19% potential increase in price ($263 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($91 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Idaho to Japan

Cheapest flights from Idaho to Japan
Explore the most affordable flight options available from Idaho to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 8/1. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:45 amGEG - NRT
1 stop15h 15mHawaiian Airlines
Thu 11/136:30 pmNRT - GEG
1 stop21h 29mHawaiian Airlines
Deal found 8/1$654
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/18:51 pmGEG - NRT
1 stop27h 09mAlaska Airlines
Fri 9/126:25 pmNRT - GEG
1 stop21h 54mAlaska Airlines
Deal found 8/1$665
This Delta deal was found by Cheapflights users on 8/1. 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 9/16:10 amGEG - HND
1 stop16h 05mDelta
Wed 9/106:25 pmHND - GEG
1 stop19h 01mDelta
Deal found 8/1$667
This Korean Air deal was found by Cheapflights users on 8/1. 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 10/136:15 amGEG - HND
2 stops24h 35mKorean Air
Mon 11/32:00 amHND - GEG
2 stops27h 35mKorean Air
Deal found 8/1$687
This Korean Air deal was found by Cheapflights users on 8/1. 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 9/19:15 amGEG - NRT
2 stops19h 50mKorean Air
Wed 9/109:20 amNRT - GEG
2 stops23h 29mKorean Air
Deal found 8/1$687
This Delta deal was found by Cheapflights users on 8/1. 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.
Sun 8/175:45 amBOI - HND
1 stop17h 30mDelta
Tue 8/264:05 pmHND - BOI
1 stop17h 11mDelta
Deal found 8/1$705
This Hawaiian Airlines deal was found by Cheapflights users on 8/1. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/176:25 amBOI - NRT
1 stop18h 35mHawaiian Airlines
Tue 8/266:25 pmNRT - BOI
1 stop16h 41mHawaiian Airlines
Deal found 8/1$705
This Delta deal was found by Cheapflights users on 7/31. 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 11/177:30 amJAC - NRT
2 stops40h 25mDelta
Tue 12/99:15 amNRT - JAC
2 stops25h 03mDelta
Deal found 7/31$719
This Booking.com deal was found by Cheapflights users on 8/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:45 pmGEG - NRT
2 stops35h 35mAir Canada
Sun 11/166:15 pmNRT - GEG
2 stops59h 30mAir Canada
Deal found 8/1$720
This United Airlines deal was found by Cheapflights users on 7/31. 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 11/18:25 amBOI - HND
2 stops43h 20mUnited Airlines
Wed 11/194:25 pmHND - BOI
1 stop15h 38mUnited Airlines
Deal found 7/31$726
This United Airlines deal was found by Cheapflights users on 8/1. 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 11/12:40 pmBOI - NRT
2 stops34h 50mUnited Airlines
Wed 11/194:45 pmNRT - BOI
1 stop18h 09mUnited Airlines
Deal found 8/1$731
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Sat 11/110:40 amBOI - NRT
2 stops62h 40mAir Canada
Wed 11/196:15 pmNRT - BOI
2 stops45h 13mAir Canada
Deal found 7/29$738

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Japan 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 August 1, 2025.
Use the filters below to find and compare flights from Idaho to Japan that are best for you.

Fly from

Idaho

Fly to

Japan

Route

Depart

Return

Price

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Thu 10/30

8:45 am-4:00 pm

1 stop15h 15m

Tokyo Narita

Thu 11/13

6:30 pm-10:59 pm

1 stop21h 29m

$654

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Mon 9/1

8:51 pm-4:00 pm

1 stop27h 09m

Tokyo Narita

Fri 9/12

6:25 pm-12:19 am

1 stop21h 54m

$665

SpokaneTokyo

GEG - HND

GEGHND

Spokane

Mon 9/1

6:10 am-2:15 pm

1 stop16h 05m

Tokyo Haneda

Wed 9/10

6:25 pm-9:26 pm

1 stop19h 01m

$667

SpokaneTokyo

GEG - HND

GEGHND

Spokane

Mon 10/13

6:15 am-10:50 pm

2 stops24h 35m

Tokyo Haneda

Mon 11/3

2:00 am-12:35 pm

2 stops27h 35m

$687

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Mon 9/1

9:15 am-9:05 pm

2 stops19h 50m

Tokyo Narita

Fri 9/12

2:00 pm-9:31 pm

2 stops23h 31m

$687

BoiseTokyo

BOI - HND

BOIHND

Boise Air Term. Gowen Fld

Sun 8/17

5:45 am-2:15 pm

1 stop17h 30m

Tokyo Haneda

Tue 8/26

4:05 pm-6:16 pm

1 stop17h 11m

$705

BoiseTokyo

BOI - NRT

BOINRT

Boise Air Term. Gowen Fld

Sun 8/17

6:25 am-4:00 pm

1 stop18h 35m

Tokyo Narita

Tue 8/26

6:25 pm-8:06 pm

1 stop16h 41m

$705

JacksonTokyo

JAC - NRT

JACNRT

Jackson Hole

Mon 11/17

7:30 am-3:55 pm

2 stops40h 25m

Tokyo Narita

Tue 12/9

9:15 am-6:18 pm

2 stops25h 03m

$719

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Sat 11/1

12:45 pm-4:20 pm

2 stops35h 35m

Tokyo Narita

Sun 11/16

6:15 pm-12:45 pm

2 stops59h 30m

$720

BoiseTokyo

BOI - HND

BOIHND

Boise Air Term. Gowen Fld

Sat 11/1

8:25 am-6:45 pm

2 stops43h 20m

Tokyo Haneda

Wed 11/19

4:25 pm-4:03 pm

1 stop15h 38m

$726

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Idaho 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 Idaho to Japan

What is the cheapest month to book a flight from Idaho to Japan?

Currently, February is the cheapest month in which you can book a flight from Idaho to Japan (average of $884). Flying from Idaho to Japan in December is currently the most expensive (average of $1,627). 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.

What is the cheapest time of day to fly from ID to JP?

Find hourly flight availability from Idaho to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Japan as you normally would.

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. 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 Japan. Reviews last updated August 1, 2025.
Read reviews from past customers who have flown Korean Air, ANA, and China Airlines from Idaho to Japan. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very good
1,121 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
ANA
8.4
Very good
922 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
China Airlines
8.3
Very good
754 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Delta
8.0
Very good
7,981 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Alaska Airlines
8.0
Very good
10,000 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Idaho to Japan one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $348. Alaska Airlines flights start at $348 while deals on Korean Air start at $358 one-way.

  • Can I find deals for flights from Idaho to Japan that include hotel bookings?

    Yes. In addition to deals on Idaho to Japan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Japan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Japan.

  • Can I find deals for business class flights from Idaho to Japan?

    Yes. Cheapflights offers flight deals from Idaho to Japan 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 Idaho to Japan?

    Currently, February is the cheapest month in which you can book a flight from Idaho to Japan (average of $884). Flying from Idaho to Japan in December is currently the most expensive (average of $1,627). 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

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Top 4 airlines flying from Idaho to Japan

Discover the top 4 airlines that operate flights from Idaho to Japan. 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 August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$597Average$1,224FlexibilityNo cancel feeOn-time69%
DeltaCheapest$630Average$1,167FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$655Average$890FlexibilityNo cancel feeOn-time79%
ANACheapest$723Average$1,171FlexibilityNo cancel feeOn-time80%

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