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$448+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FUK
Jun 11 — Jun 181
Thu 6/11
Thu 6/18
1 adult, Economy
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Cheap 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 May 12, 2026.

This Alaska Airlines deal was found by Cheapflights users on 5/8. 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.
Tue 8/2510:14 am
BOI
-
NRT
1 stop15h 16m
Alaska Airlines
Thu 10/296:10 pm
NRT
-
BOI
1 stop12h 13m
Alaska Airlines
Deal found 5/8$895
This Travelocity deal was found by Cheapflights users on 5/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:00 pm
BOI
-
NRT
1 stop28h 05m
Alaska Airlines
Sat 11/76:10 pm
NRT
-
BOI
1 stop14h 01m
Alaska Airlines
Deal found 5/8$944
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:14 am
BOI
-
NRT
1 stop18h 46m
Multiple Airlines
Wed 9/99:30 pm
NRT
-
BOI
1 stop15h 57m
Multiple Airlines
Deal found 5/11$971
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:14 am
BOI
-
NRT
1 stop18h 46m
Multiple Airlines
Sat 8/299:30 pm
NRT
-
BOI
1 stop15h 57m
Multiple Airlines
Deal found 5/8$974
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
GEG
-
NRT
2 stops22h 00m
Multiple Airlines
Wed 9/239:30 pm
NRT
-
GEG
1 stop31h 52m
Multiple Airlines
Deal found 5/11$978
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:14 am
BOI
-
NRT
1 stop18h 46m
Multiple Airlines
Wed 9/99:30 pm
NRT
-
BOI
1 stop15h 57m
Multiple Airlines
Deal found 5/11$995
This Delta deal was found by Cheapflights users on 5/8. 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.
Tue 8/258:42 am
BOI
-
HND
1 stop14h 38m
Delta
Wed 9/24:20 pm
HND
-
BOI
1 stop17h 15m
Delta
Deal found 5/8$1,011
This Alaska Airlines deal was found by Cheapflights users on 5/7. 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.
Tue 9/12:02 pm
GEG
-
NRT
1 stop34h 28m
Alaska Airlines
Tue 9/155:45 pm
NRT
-
GEG
1 stop20h 40m
Alaska Airlines
Deal found 5/7$1,014
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:00 am
BOI
-
NRT
1 stop22h 00m
Multiple Airlines
Tue 9/159:30 pm
NRT
-
BOI
1 stop15h 57m
Multiple Airlines
Deal found 5/9$1,015
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:14 am
BOI
-
NRT
1 stop18h 46m
Multiple Airlines
Fri 9/1111:30 am
NRT
-
BOI
2 stops27h 14m
Multiple Airlines
Deal found 5/8$1,016
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
GEG
-
NRT
2 stops22h 00m
Multiple Airlines
Fri 10/92:35 pm
NRT
-
GEG
1 stop14h 42m
Multiple Airlines
Deal found 5/11$1,026
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:14 am
BOI
-
NRT
1 stop18h 46m
Multiple Airlines
Sun 8/309:30 pm
NRT
-
BOI
2 stops30h 05m
Multiple Airlines
Deal found 5/8$1,029

Find flight deals from Idaho to Japan

Keep the following information in mind while searching for Idaho to Japan flight deals. Data was last updated May 12, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$978
(Kiwi.com)

One-way from

$448
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$825
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Tokyo (TYO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Tokyo (TYO) flights.
Search Deals
From Idaho to Japan
Search Deals
One-way flight from Idaho to Japan
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($59 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 12, 2026.
Use the filters below to find and compare flights from Idaho to Japan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Tue 10/13

5:40 pm-12:25 pm

2 stops26h 45m

Tokyo Narita

Fri 11/13

8:20 pm-10:57 pm

2 stops43h 37m

$1,252

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Tue 9/1

7:24 pm-4:00 pm

2 stops28h 36m

Tokyo Narita

Tue 9/15

6:00 pm-2:54 pm

1 stop12h 54m

$1,274

SpokaneTokyo

GEG - HND

GEGHND

Spokane

Sun 8/23

6:00 am-1:55 pm

1 stop15h 55m

Tokyo Haneda

Thu 8/27

3:50 pm-10:36 pm

1 stop22h 46m

$1,283

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Tue 8/25

5:00 am-2:30 pm

1 stop17h 30m

Tokyo Narita

Fri 8/28

5:05 pm-9:16 pm

1 stop20h 11m

$1,285

SpokaneTokyo

GEG - HND

GEGHND

Spokane

Tue 9/15

12:57 pm-1:55 pm

1 stop32h 58m

Tokyo Haneda

Tue 10/20

9:55 pm-10:16 pm

2 stops40h 21m

$1,287

BoiseTokyo

BOI - NRT

BOINRT

Boise Air Term. Gowen Fld

Wed 8/5

6:51 pm-12:25 pm

2 stops26h 34m

Tokyo Narita

Wed 8/19

1:25 pm-10:27 pm

2 stops24h 02m

$1,287

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Tue 10/13

6:00 am-3:00 pm

1 stop17h 00m

Tokyo Narita

Fri 11/13

5:00 pm-11:38 pm

2 stops23h 38m

$1,289

SpokaneTokyo

GEG - HND

GEGHND

Spokane

Tue 9/1

1:04 pm-1:55 pm

1 stop32h 51m

Tokyo Haneda

Tue 9/15

10:55 pm-10:35 am

1 stop27h 40m

$1,298

SpokaneTokyo

GEG - HND

GEGHND

Spokane

Wed 9/16

6:00 am-1:55 pm

1 stop15h 55m

Tokyo Haneda

Wed 9/30

3:50 pm-10:16 pm

1 stop22h 26m

$1,303

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Mon 8/24

5:45 am-3:30 pm

1 stop17h 45m

Tokyo Narita

Sat 8/29

5:45 pm-2:47 pm

1 stop13h 02m

$1,310

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Idaho to Japan?

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Idaho to Japan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from Idaho to Japan (average of $434). Flying from Idaho to Japan in July is currently the most expensive (average of $727). 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.

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.

  • How long is the flight from Idaho to Japan?

    A quick flight from Idaho to Japan can take about 15h 55m. United Airlines provides one of the quickest options available for as low as $1,283. There are 4971 mi between Idaho and Japan. This flight may include one or multiple stops.

  • 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, March is the cheapest month in which you can book a flight from Idaho to Japan (average of $434). Flying from Idaho to Japan in July is currently the most expensive (average of $727). 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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Alternative routes for Idaho to Japan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Idaho to Japan

Discover the top 6 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 May 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$664Average$835FlexibilityNo cancel feeOn-time69%
DeltaCheapest$697Average$861FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$708Average$812FlexibilityNo cancel feeOn-time75%
ANACheapest$723Average$781FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$735Average$1,353FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$769Average$852FlexibilityNo cancel feeOn-time81%

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