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South Korea

$448+ Cheap flights from Idaho to South Korea

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — ICN
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Idaho to South Korea

Cheapest flights from Idaho to South Korea
Explore the most affordable flight options available from Idaho to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Expedia deal was found by Cheapflights users on 2/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/58:30 am
BOI
-
ICN
1 stop18h 05m
Multiple Airlines
Sun 3/158:35 pm
ICN
-
BOI
1 stop17h 05m
Multiple Airlines
Deal found 2/2$827
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/226:28 am
BOI
-
ICN
1 stop20h 07m
Multiple Airlines
Thu 2/268:35 pm
ICN
-
BOI
1 stop18h 05m
Multiple Airlines
Deal found 1/31$845
This Expedia deal was found by Cheapflights users on 2/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/21:25 pm
BOI
-
ICN
2 stops31h 20m
Multiple Airlines
Mon 3/93:00 pm
ICN
-
BOI
2 stops22h 15m
Multiple Airlines
Deal found 2/2$852
This Asiana Airlines deal was found by Cheapflights users on 2/1. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:51 pm
BOI
-
ICN
1 stop19h 09m
Multiple Airlines
Sat 10/318:40 pm
ICN
-
BOI
1 stop17h 15m
Multiple Airlines
Deal found 2/1$914
This Asiana Airlines deal was found by Cheapflights users on 2/3. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:47 pm
GEG
-
ICN
1 stop19h 13m
Multiple Airlines
Thu 9/179:00 pm
ICN
-
GEG
1 stop16h 11m
Multiple Airlines
Deal found 2/3$914
This Delta deal was found by Cheapflights users on 2/2. 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 10/188:40 am
BOI
-
ICN
1 stop17h 10m
Delta
Sat 10/247:20 pm
ICN
-
BOI
1 stop19h 44m
Delta
Deal found 2/2$927
This Ovago deal was found by Cheapflights users on 2/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:00 pm
GEG
-
ICN
2 stops20h 40m
Asiana Airlines
Tue 11/106:00 pm
ICN
-
GEG
1 stop22h 38m
Asiana Airlines
Deal found 2/2$930
This United Airlines deal was found by Cheapflights users on 2/2. 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 11/35:00 am
GEG
-
ICN
2 stops31h 40m
United Airlines
Tue 11/1012:45 pm
ICN
-
GEG
2 stops25h 24m
United Airlines
Deal found 2/2$933
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Wed 2/47:05 pm
BOI
-
ICN
1 stop18h 35m
United Airlines
Wed 2/1812:45 pm
ICN
-
BOI
1 stop19h 22m
United Airlines
Deal found 2/1$962
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/228:00 am
IDA
-
ICN
1 stop18h 35m
Multiple Airlines
Thu 2/268:35 pm
ICN
-
IDA
1 stop19h 01m
Multiple Airlines
Deal found 1/31$987
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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.
Fri 2/135:40 am
GEG
-
ICN
1 stop19h 55m
Multiple Airlines
Sun 2/228:35 pm
ICN
-
GEG
1 stop14h 37m
Multiple Airlines
Deal found 2/1$1,006
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Mon 9/144:00 pm
GEG
-
ICN
2 stops20h 20m
United Airlines
Thu 9/174:50 pm
ICN
-
GEG
1 stop22h 48m
United Airlines
Deal found 2/1$1,011

Find flight deals from Idaho to South Korea

Keep the following information in mind while searching for Idaho to South Korea flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$827
(Expedia)

One-way from

$448
(Kiwi.com)
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Seoul (SEL) flights.
Search Deals
From Idaho to South Korea
Search Deals
One-way flight from Idaho to South Korea
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to South Korea 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 February 3, 2026.
Use the filters below to find and compare flights from Idaho to South Korea that are best for you.

Fly from

Idaho

Fly to

South Korea

Route

Depart

Return

Price

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Sun 2/22

6:28 am-6:35 pm

1 stop20h 07m

Incheon Intl

Thu 2/26

8:35 pm-9:15 pm

1 stop16h 40m

$905

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Thu 3/5

7:15 am-6:35 pm

2 stops19h 20m

Incheon Intl

Sun 3/15

8:35 pm-11:59 pm

1 stop18h 24m

$919

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Mon 3/2

5:35 am-4:30 pm

2 stops18h 55m

Incheon Intl

Sat 3/7

7:30 pm-11:05 pm

2 stops19h 35m

$967

Idaho FallsIncheon

IDA - ICN

IDAICN

Idaho Falls Fanning Field

Sun 2/22

8:00 am-6:35 pm

1 stop18h 35m

Incheon Intl

Thu 2/26

8:35 pm-11:36 pm

1 stop19h 01m

$987

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Fri 3/6

8:50 am-4:30 pm

1 stop15h 40m

Incheon Intl

Sun 3/22

7:40 pm-9:27 am

1 stop28h 47m

$1,010

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Thu 3/5

5:00 am-4:15 pm

2 stops19h 15m

Incheon Intl

Sun 3/15

11:45 am-9:59 pm

2 stops25h 14m

$1,017

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Mon 7/13

6:15 pm-4:45 am

1 stop19h 30m

Incheon Intl

Mon 7/20

9:20 pm-10:51 pm

1 stop16h 31m

$1,024

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Tue 5/26

6:03 pm-5:15 am

1 stop20h 12m

Incheon Intl

Wed 6/10

9:20 pm-10:51 pm

1 stop16h 31m

$1,047

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Tue 5/26

6:03 pm-5:15 am

1 stop20h 12m

Incheon Intl

Thu 6/18

9:20 pm-10:51 pm

1 stop16h 31m

$1,047

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Tue 5/26

6:03 pm-5:15 am

1 stop20h 12m

Incheon Intl

Tue 6/16

9:20 pm-10:51 pm

1 stop16h 31m

$1,047

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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Best time to book a flight from Idaho to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea 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 South Korea

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

Find hourly flight availability from Idaho to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 3, 2026.

A simple way to save on the total cost of your ticket is to fly from Idaho to South Korea in the evening. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Idaho to South Korea?

Use this chart to determine the cheapest time to fly round-trip from Idaho to South Korea. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Idaho to South Korea flight should consider departing on Monday afternoons when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Idaho to South Korea. 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 South Korea?

    For as low as $967, Delta can have you in South Korea from Idaho in 18h 55m. Idaho and South Korea are separated by a distance of 5598 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    One-way options have recently been found by users for as low as $99 on American Airlines. Other airlines that offer cheap prices include Delta from $105 and United Airlines from $168 one-way.

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

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

  • How can I find direct flights from Idaho to South Korea?

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

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

    Yes. Cheapflights offers flight deals from Idaho to South Korea by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Idaho to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Idaho to South Korea

Discover the top airline that operate flights from Idaho to South Korea. 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$915Average$1,455FlexibilityNo cancel feeOn-timeN/A

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