How long is the flight from Idaho to Japan?

A quick flight from Idaho to Japan can take about 17h 09m. Alaska Airlines provides one of the quickest options available for as low as $633. There are 4937 mi between Idaho and Japan. This flight may include one or multiple stops.

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

To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $334. United Airlines flights start at $358 while deals on Air Canada start at $384 one-way.

In terms of precipitation, rainfall in Japan ranges from 2.0 - 8.3 inches per month. September is typically the wettest month, when rainfall can reach 8.3 in. January is typically the driest time to visit Japan when rainfall is around 2.0 in.

If weather is an important factor for your trip to Japan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

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

To save up to 14% on this flight, we recommend booking at least 27 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Idaho to Japan from $746 1-2 weeks out and tickets from $919 for flights departing within the next 72 hours.

What is the cheapest month to fly from Idaho to Japan?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Japan. Flights to Japan from Idaho in September are about $1,004 on average during September, but can be found for as low as $604.

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.

$334+ Flights from Idaho to Japan

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Cheap flight deals from Idaho to Japan

Round-trip from	$607 (SmartFares)
One-way from	$334 (SmartFares)
Popular in	December
Cheapest in	September
Average price	$786

From Idaho to Japan

Search Deals

One-way flight from Idaho to Japan

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($172 potential increase over avg. RT price).

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Cheapest flight prices on average. 7% potential price decrease ($72 potential savings vs. average RT price).

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Average for round-trip flights in September 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 September 15, 2025.

Tue 11/187:35 amGEG - NRT

1 stop15h 25mAlaska Airlines

Thu 12/186:30 pmNRT - GEG

1 stop21h 40mAlaska Airlines

Deal found 9/14

$633

Mon 10/137:30 amGEG - NRT

1 stop16h 30mAlaska Airlines

Tue 11/46:30 pmNRT - GEG

1 stop19h 44mAlaska Airlines

Deal found 9/15

$656

Tue 10/281:20 pmGEG - NRT

1 stop34h 40mAlaska Airlines

Tue 11/46:30 pmNRT - GEG

1 stop19h 44mAlaska Airlines

Deal found 9/13

$662

Mon 9/229:52 amBOI - HND

1 stop37h 03mANA

Tue 9/303:50 pmHND - BOI

1 stop16h 08mANA

Deal found 9/14

$664

Sun 9/217:45 amBOI - HND

1 stop15h 10mUnited Airlines

Sun 9/283:50 pmHND - BOI

1 stop18h 25mUnited Airlines

Deal found 9/14

$665

Thu 9/257:30 amBOI - HND

1 stop15h 45mDelta

Mon 9/294:20 pmHND - BOI

1 stop22h 39mDelta

Deal found 9/14

$666

Mon 9/225:00 amBOI - NRT

1 stop18h 55mUnited Airlines

Tue 9/305:10 pmNRT - BOI

1 stop14h 48mUnited Airlines

Deal found 9/15

$666

Thu 9/257:05 pmBOI - HND

2 stops29h 10mUnited Airlines

Mon 9/299:05 pmHND - BOI

2 stops17h 39mUnited Airlines

Deal found 9/14

$669

Mon 9/151:00 pmBOI - HND

2 stops34h 15mDelta

Mon 9/296:25 pmHND - BOI

2 stops20h 50mDelta

Deal found 9/15

$671

Mon 9/292:44 pmBOI - NRT

2 stops32h 31mUnited Airlines

Fri 10/35:10 pmNRT - BOI

2 stops19h 14mUnited Airlines

Deal found 9/14

$671

Tue 10/289:22 amGEG - NRT

2 stops18h 08mKorean Air

Tue 11/49:15 amNRT - GEG

2 stops20h 20mKorean Air

Deal found 9/13

$672

Mon 9/155:39 pmBOI - NRT

1 stop30h 16mUnited Airlines

Mon 9/295:10 pmNRT - BOI

1 stop17h 05mUnited Airlines

Deal found 9/15

$673

Best flights from Idaho to Japan
Discover carefully curated flight deals from Idaho to Japan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Tue 11/185:51 amGEG - NRT

1 stop17h 09mAlaska Airlines

Thu 12/186:30 pmNRT - GEG

1 stop21h 40mAlaska Airlines

Deal found 9/13

$633

Tue 2/312:24 pmGEG - OKA

2 stops38h 01mUnited Airlines

Tue 2/102:20 pmOKA - GEG

2 stops45h 41mUnited Airlines

Deal found 9/13

$635

Tue 2/36:53 amGEG - OKA

3 stops23h 12mMultiple Airlines

Tue 2/1012:15 pmOKA - GEG

2 stops23h 46mMultiple Airlines

Deal found 9/13

$635

Tue 10/289:22 amGEG - NRT

2 stops18h 08mKorean Air

Tue 11/49:15 amNRT - GEG

2 stops20h 20mKorean Air

Deal found 9/13

$672

Mon 9/299:00 amBOI - NRT

1 stop16h 00mHawaiian Airlines

Fri 10/36:25 pmNRT - BOI

1 stop19h 25mHawaiian Airlines

Deal found 9/12

$724

Tue 11/41:06 pmJAC - NRT

2 stops33h 34mAmerican Airlines

Tue 11/186:10 pmNRT - JAC

2 stops34h 06mAmerican Airlines

Deal found 9/13

$780

Thu 1/297:30 amBOI - KIX

2 stops37h 20mDelta

Mon 2/29:00 amKIX - BOI

2 stops30h 58mDelta

Deal found 9/12

$793

Thu 1/297:25 amBOI - ITM

2 stops19h 30mANA

Mon 2/24:50 pmITM - BOI

2 stops39h 20mANA

Deal found 9/12

$801

Tue 2/32:20 pmBOI - HND

1 stop22h 30mUnited Airlines

Fri 2/134:25 pmHND - BOI

1 stop23h 12mUnited Airlines

Deal found 9/14

$646

Wed 10/18:27 pmBOI - NGO

2 stops27h 43mCathay Pacific

Wed 10/224:35 pmNGO - BOI

3 stops36h 00mCathay Pacific

Deal found 9/13

$1,306

Mon 10/137:30 amGEG - NRT

1 stop16h 30mAlaska Airlines

Tue 11/46:30 pmNRT - GEG

1 stop19h 44mAlaska Airlines

Deal found 9/14

$656

Tue 11/187:05 amGEG - NRT

2 stops21h 00mKorean Air

Thu 12/189:15 amNRT - GEG

2 stops21h 51mKorean Air

Deal found 9/13

$693

Last-minute flights from Idaho to Japan
Discover last-minute flight deals from Idaho to Japan. Data last updated September 15, 2025 and is based on user searches.

Mon 9/152:13 pmBOI - HND

1 stop34h 02mUnited Airlines

Mon 9/293:50 pmHND - BOI

1 stop16h 08mUnited Airlines

Deal found 9/15

$671

Mon 9/155:39 pmBOI - NRT

1 stop30h 16mUnited Airlines

Mon 9/295:10 pmNRT - BOI

1 stop17h 05mUnited Airlines

Deal found 9/15

$673

Sun 9/217:45 amBOI - HND

1 stop15h 10mUnited Airlines

Sun 9/283:50 pmHND - BOI

1 stop18h 25mUnited Airlines

Deal found 9/14

$665

Mon 9/229:52 amBOI - HND

1 stop37h 03mANA

Tue 9/303:50 pmHND - BOI

1 stop16h 08mANA

Deal found 9/14

$664

Mon 9/225:00 amBOI - NRT

1 stop18h 55mUnited Airlines

Tue 9/305:10 pmNRT - BOI

1 stop14h 48mUnited Airlines

Deal found 9/15

$666

Wed 9/247:45 amBOI - OKA

2 stops23h 35mUnited Airlines

Thu 10/211:05 amOKA - BOI

2 stops20h 53mUnited Airlines

Deal found 9/13

$675

Thu 9/257:30 amBOI - HND

1 stop15h 45mDelta

Mon 9/294:20 pmHND - BOI

1 stop22h 39mDelta

Deal found 9/14

$666

Thu 9/257:05 pmBOI - HND

2 stops29h 10mUnited Airlines

Mon 9/299:05 pmHND - BOI

2 stops17h 39mUnited Airlines

Deal found 9/14

$669

Mon 9/292:44 pmBOI - NRT

2 stops32h 31mUnited Airlines

Fri 10/35:10 pmNRT - BOI

1 stop14h 48mUnited Airlines

Deal found 9/14

$671

Mon 10/137:30 amGEG - NRT

1 stop16h 30mAlaska Airlines

Tue 11/46:30 pmNRT - GEG

1 stop19h 44mAlaska Airlines

Deal found 9/15

$656

Tue 10/281:20 pmGEG - NRT

1 stop34h 40mAlaska Airlines

Tue 11/46:30 pmNRT - GEG

1 stop19h 44mAlaska Airlines

Deal found 9/13

$662

Tue 10/289:22 amGEG - NRT

2 stops18h 08mKorean Air

Tue 11/49:15 amNRT - GEG

2 stops20h 20mKorean Air

Deal found 9/13

$672

One-way flights from Idaho to Japan
Search for one-way flight options from Idaho to Japan. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Thu 9/258:04 amGEG - NRT

1 stop15h 56mAlaska Airlines

Deal found 9/15

$334

Sun 9/215:15 amGEG - NRT

1 stop17h 40mUnited Airlines

Deal found 9/15

$358

Thu 9/254:00 pmGEG - NRT

2 stops30h 15mUnited Airlines

Deal found 9/15

$374

Mon 11/172:40 pmBOI - NRT

2 stops33h 40mAir Canada

Deal found 9/14

$384

Wed 11/262:40 pmBOI - NRT

2 stops33h 40mAir Canada

Deal found 9/15

$388

Tue 11/182:40 pmBOI - KIX

2 stops35h 00mMultiple Airlines

Deal found 9/13

$388

Tue 11/182:31 pmBOI - NRT

2 stops33h 49mAir Canada

Deal found 9/13

$389

Mon 11/1712:35 pmBOI - HND

2 stops36h 05mAir Canada

Deal found 9/13

$390

Tue 11/185:17 pmBOI - NRT

2 stops31h 03mMultiple Airlines

Deal found 9/14

$390

Mon 11/1710:05 amBOI - NRT

1 stop13h 55mAlaska Airlines

Deal found 9/13

$416

Wed 12/36:15 amBOI - NRT

1 stop17h 45mHawaiian Airlines

Deal found 9/15

$420

Mon 11/176:20 amBOI - HND

1 stop16h 30mUnited Airlines

Deal found 9/15

$421

Fly from

Fly to

Route

Depart

Return

Price

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Tue 11/18

5:51 am-4:00 pm

1 stop17h 09m

Tokyo Narita

Thu 12/18

6:30 pm-11:10 pm

1 stop21h 40m

$633

SpokaneOkinawa

GEG - OKA

GEGOKA

Spokane

Tue 2/3

12:24 pm-7:25 pm

2 stops38h 01m

Okinawa Naha

Tue 2/10

2:20 pm-7:01 pm

2 stops45h 41m

$635

SpokaneOkinawa

GEG - OKA

GEGOKA

Spokane

Tue 2/3

6:53 am-11:05 pm

3 stops23h 12m

Okinawa Naha

Tue 2/10

12:15 pm-7:01 pm

2 stops23h 46m

$635

BoiseTokyo

BOI - HND

BOIHND

Boise Air Term. Gowen Fld

Tue 2/3

2:20 pm-4:50 am

1 stop22h 30m

Tokyo Haneda

Fri 2/13

4:25 pm-11:37 pm

1 stop23h 12m

$646

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Mon 10/13

7:30 am-4:00 pm

1 stop16h 30m

Tokyo Narita

Tue 11/4

6:30 pm-9:14 pm

1 stop19h 44m

$656

BoiseTokyo

BOI - HND

BOIHND

Boise Air Term. Gowen Fld

Thu 9/25

5:00 am-3:15 pm

2 stops19h 15m

Tokyo Haneda

Sun 9/28

12:30 am-1:42 pm

2 stops28h 12m

$669

BoiseTokyo

BOI - NRT

BOINRT

Boise Air Term. Gowen Fld

Mon 9/29

2:44 pm-2:15 pm

2 stops32h 31m

Tokyo Narita

Fri 10/3

4:30 pm-9:24 pm

1 stop19h 54m

$671

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Tue 10/28

9:22 am-7:30 pm

2 stops18h 08m

Tokyo Narita

Tue 11/4

9:15 am-12:35 pm

2 stops20h 20m

$672

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Sun 9/21

5:15 am-2:55 pm

1 stop17h 40m

Tokyo Narita

Sat 9/27

5:10 pm-11:15 pm

1 stop22h 05m

$677

SpokaneTokyo

GEG - NRT

GEGNRT

Spokane

Tue 11/18

7:05 am-9:05 pm

2 stops21h 00m

Tokyo Narita

Thu 12/18

9:15 am-2:06 pm

2 stops21h 51m

$693

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 55 results

...

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 $902). Flying from Idaho to Japan in December is currently the most expensive (average of $1,502). 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?

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.

Related info for your journey

How long is the flight from Idaho to Japan?
A quick flight from Idaho to Japan can take about 17h 09m. Alaska Airlines provides one of the quickest options available for as low as $633. There are 4937 mi between Idaho and Japan. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Idaho to Japan one-way?
To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $334. United Airlines flights start at $358 while deals on Air Canada start at $384 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 $902). Flying from Idaho to Japan in December is currently the most expensive (average of $1,502). 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

Top 6 airlines flying from Idaho to Japan

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$441	Average$837	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$597	Average$1,137	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$630	Average$1,167	FlexibilityNo cancel fee	On-timeN/A
Japan Airlines	Cheapest$655	Average$890	FlexibilityNo cancel fee	On-time79%
ANA	Cheapest$670	Average$957	FlexibilityNo cancel fee	On-time80%
Alaska Airlines	Cheapest$761	Average$812	FlexibilityNo cancel fee	On-time75%

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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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.

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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 September 15, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Idaho to Japan

Cheapest flights from Idaho to JapanExplore 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 September 15, 2025.

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 September 15, 2025.

Cheapflights Fare Finder

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

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.

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?

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 September 15, 2025.

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?

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

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

How can I find direct flights from Idaho to Japan?

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

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

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.

Top 6 airlines flying from Idaho to Japan

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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 September 15, 2025.