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$334+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FUK
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:44 pm
GEG
-
HND
2 stops29h 36m
Multiple Airlines
Wed 11/46:05 pm
HND
-
GEG
1 stop15h 03m
Multiple Airlines
Deal found 1/28$647
This Delta deal was found by Cheapflights users on 1/27. 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.
Sat 2/216:05 am
GEG
-
HND
1 stop15h 00m
Delta
Sat 3/74:50 pm
HND
-
GEG
1 stop12h 45m
Delta
Deal found 1/27$652
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/183:33 pm
GEG
-
NRT
1 stop32h 02m
Multiple Airlines
Tue 4/286:10 pm
NRT
-
GEG
1 stop34h 30m
Multiple Airlines
Deal found 1/26$652
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sun 4/197:00 am
GEG
-
HND
2 stops20h 00m
United Airlines
Wed 5/133:50 pm
HND
-
GEG
1 stop21h 50m
United Airlines
Deal found 1/28$660
This Delta deal was found by Cheapflights users on 1/26. 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 9/289:10 am
GEG
-
HND
1 stop13h 10m
Delta
Wed 10/74:05 pm
HND
-
GEG
1 stop21h 00m
Delta
Deal found 1/26$661
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/214:02 pm
GEG
-
HND
2 stops29h 48m
United Airlines
Sat 3/710:55 pm
HND
-
GEG
1 stop15h 08m
United Airlines
Deal found 1/27$663
This United Airlines deal was found by Cheapflights users on 1/26. 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 4/184:01 pm
GEG
-
NRT
2 stops30h 14m
United Airlines
Tue 4/285:00 pm
NRT
-
GEG
1 stop20h 34m
United Airlines
Deal found 1/26$665
This Delta deal was found by Cheapflights users on 1/26. 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 9/287:55 am
GEG
-
HND
1 stop14h 25m
Delta
Fri 10/94:05 pm
HND
-
GEG
1 stop32h 37m
Delta
Deal found 1/26$666
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 4/1412:35 pm
GEG
-
NRT
2 stops33h 40m
United Airlines
Tue 4/285:00 pm
NRT
-
GEG
1 stop20h 34m
United Airlines
Deal found 1/28$666
This Delta deal was found by Cheapflights users on 1/27. 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 2/246:05 am
GEG
-
HND
1 stop15h 00m
Delta
Tue 3/34:50 pm
HND
-
GEG
1 stop12h 45m
Delta
Deal found 1/27$671
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Tue 2/247:00 am
GEG
-
NRT
1 stop15h 00m
United Airlines
Tue 3/34:45 pm
NRT
-
GEG
1 stop21h 22m
United Airlines
Deal found 1/27$671
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 4/207:00 am
GEG
-
OKA
2 stops19h 10m
United Airlines
Thu 4/302:00 pm
OKA
-
GEG
2 stops61h 19m
United Airlines
Deal found 1/27$675

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$652
(Delta)

One-way from

$334
(SmartFares)

Popular in

December

Cheapest in

February

Average price

$715
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 ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 29, 2026.
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 - HND

GEGHND

Spokane

Sat 2/21

6:05 am-2:05 pm

1 stop15h 00m

Tokyo Haneda

Sat 3/7

4:50 pm-12:35 pm

1 stop12h 45m

$652

SpokaneTokyo

GEG - HND

GEGHND

Spokane

Sun 4/19

7:00 am-1:55 pm

1 stop14h 55m

Tokyo Haneda

Wed 5/13

3:50 pm-9:40 pm

1 stop21h 50m

$660

SpokaneTokyo

GEG - HND

GEGHND

Spokane

Sat 2/21

4:02 pm-2:50 pm

2 stops29h 48m

Tokyo Haneda

Sat 3/7

10:55 pm-9:03 pm

1 stop15h 08m

$663

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Sat 4/18

4:01 pm-3:25 pm

2 stops31h 24m

Tokyo Narita

Tue 4/28

5:00 pm-12:41 pm

2 stops35h 41m

$665

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Sun 4/19

7:00 am-3:00 pm

1 stop16h 00m

Tokyo Narita

Wed 5/13

5:00 pm-9:16 pm

2 stops20h 16m

$666

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Tue 4/14

12:35 pm-2:15 pm

2 stops33h 40m

Tokyo Narita

Tue 4/28

5:00 pm-12:41 pm

2 stops35h 41m

$666

SpokaneOkinawa

GEG - OKA

GEGOKA

Spokane

Mon 4/20

7:00 am-6:10 pm

2 stops19h 10m

Okinawa Naha

Thu 4/30

2:00 pm-11:19 am

2 stops61h 19m

$675

SpokaneOkinawa

GEG - OKA

GEGOKA

Spokane

Tue 2/24

7:00 am-11:05 pm

2 stops23h 05m

Okinawa Naha

Tue 3/3

12:10 pm-9:07 pm

2 stops25h 57m

$678

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Wed 4/15

9:30 am-9:05 pm

2 stops19h 35m

Tokyo Narita

Wed 4/22

5:20 pm-6:57 pm

2 stops41h 37m

$680

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Wed 4/22

9:30 am-9:05 pm

2 stops19h 35m

Tokyo Narita

Fri 5/1

9:20 am-2:49 pm

2 stops21h 29m

$680

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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, November is the cheapest month in which you can book a flight from Idaho to Japan (average of $629). Flying from Idaho to Japan in June is currently the most expensive (average of $850). 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 14h 55m. Delta provides one of the quickest options available for as low as $660. 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, November is the cheapest month in which you can book a flight from Idaho to Japan (average of $629). Flying from Idaho to Japan in June is currently the most expensive (average of $850). 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

Browse thousands of different options on Cheapflights for your next trip

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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 5 airlines flying from Idaho to Japan

Discover the top 5 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$597Average$997FlexibilityNo cancel feeOn-time69%
ANACheapest$625Average$749FlexibilityNo cancel feeOn-time80%
DeltaCheapest$630Average$978FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$655Average$735FlexibilityNo cancel feeOn-time79%
Alaska AirlinesCheapest$708Average$812FlexibilityNo cancel feeOn-time75%

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