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$379+ 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 3/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — ICN
janv. 17 — janv. 241
sam. 1/17
sam. 1/24
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 décembre 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
lun. 12/226:55 pmBOI - ICN
1 stop29h 20mUnited Airlines
lun. 1/1212:45 pmICN - BOI
2 stops23h 00mUnited Airlines
Deal found 12/17$1,335
This Delta deal was found by Cheapflights users on 12/15. 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.
dim. 12/287:23 pmGEG - ICN
1 stop28h 07mDelta
jeu. 1/88:05 pmICN - GEG
1 stop17h 53mDelta
Deal found 12/15$1,540
This United Airlines deal was found by Cheapflights users on 12/17. 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.
dim. 12/281:47 pmGEG - ICN
2 stops33h 28mUnited Airlines
jeu. 1/812:45 pmICN - GEG
2 stops25h 37mUnited Airlines
Deal found 12/17$1,616
This Delta deal was found by Cheapflights users on 12/15. 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.
lun. 12/226:19 pmBOI - ICN
2 stops31h 16mDelta
lun. 1/128:05 pmICN - BOI
1 stop17h 53mDelta
Deal found 12/15$1,638
This United Airlines deal was found by Cheapflights users on 12/16. 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.
mar. 12/165:25 pmBOI - ICN
2 stops30h 50mUnited Airlines
lun. 12/2912:45 pmICN - BOI
2 stops25h 45mUnited Airlines
Deal found 12/16$1,685
This Korean Air deal was found by Cheapflights users on 12/16. 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.
mar. 12/168:26 pmBOI - ICN
1 stop28h 04mMultiple Airlines
lun. 12/298:05 pmICN - BOI
1 stop13h 22mMultiple Airlines
Deal found 12/16$1,743
This Korean Air deal was found by Cheapflights users on 12/16. 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.
sam. 12/205:50 amBOI - ICN
1 stop18h 30mMultiple Airlines
lun. 12/227:40 pmICN - BOI
1 stop17h 45mMultiple Airlines
Deal found 12/16$2,075
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/227:00 amBOI - GMP
2 stops23h 05mMultiple Airlines
lun. 1/128:00 amGMP - BOI
2 stops21h 35mMultiple Airlines
Deal found 12/15$2,925
This Orbitz deal was found by Cheapflights users on 12/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/168:20 pmBOI - GMP
2 stops30h 15mMultiple Airlines
lun. 12/293:50 pmGMP - BOI
2 stops23h 12mMultiple Airlines
Deal found 12/16$3,076
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 12/285:41 pmGEG - GMP
2 stops24h 14mMultiple Airlines
jeu. 1/812:05 pmGMP - GEG
2 stops21h 14mMultiple Airlines
Deal found 12/17$5,727
This Expedia deal was found by Cheapflights users on 12/16. 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.
mer. 12/178:20 pmBOI - GMP
2 stops33h 45mMultiple Airlines
mar. 12/2312:25 pmGMP - BOI
2 stops43h 43mMultiple Airlines
Deal found 12/16$9,505

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 décembre 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$716
(Expedia)

One-way from

$379
(Alaska Airlines)
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 décembre 18, 2025.
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

Idaho FallsIncheon

IDA - ICN

IDAICN

Idaho Falls Fanning Field

sam. 1/31

9:00 am-6:35 pm

1 stop17h 35m

Incheon Intl

sam. 2/7

8:35 pm-6:18 pm

1 stop13h 43m

$716

Idaho FallsIncheon

IDA - ICN

IDAICN

Idaho Falls Fanning Field

mer. 3/25

4:00 pm-6:35 pm

1 stop35h 35m

Incheon Intl

mer. 4/1

8:35 pm-10:35 pm

1 stop17h 00m

$721

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

sam. 1/24

2:20 pm-5:40 am

1 stop23h 20m

Incheon Intl

mer. 1/28

12:45 pm-4:10 pm

1 stop19h 25m

$816

Idaho FallsIncheon

IDA - ICN

IDAICN

Idaho Falls Fanning Field

sam. 1/31

5:25 am-4:20 pm

1 stop18h 55m

Incheon Intl

sam. 2/7

7:30 pm-10:57 pm

2 stops19h 27m

$820

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

lun. 2/2

6:05 am-4:30 pm

1 stop17h 25m

Incheon Intl

ven. 2/20

8:05 pm-10:50 pm

1 stop19h 45m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

ven. 2/13

5:00 am-4:30 pm

1 stop18h 30m

Incheon Intl

dim. 2/22

8:05 pm-12:04 am

1 stop20h 59m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

jeu. 1/29

10:05 am-6:35 pm

1 stop15h 30m

Incheon Intl

jeu. 2/5

8:35 pm-9:25 pm

1 stop17h 50m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

jeu. 2/5

9:20 am-4:30 pm

1 stop14h 10m

Incheon Intl

sam. 2/14

8:05 pm-8:56 pm

1 stop17h 51m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

ven. 2/6

6:05 am-4:30 pm

1 stop17h 25m

Incheon Intl

dim. 2/15

8:05 pm-12:04 am

1 stop20h 59m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

ven. 2/6

9:20 am-4:30 pm

1 stop14h 10m

Incheon Intl

ven. 2/20

8:05 pm-12:04 am

1 stop20h 59m

$827

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 35 results
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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 décembre 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Idaho to South Korea in the afternoon. If you’re flexible enough to do this you can expect to save up to 58% 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 December 16, 2024.

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 $820, United Airlines can have you in South Korea from Idaho in 18h 55m. Idaho and South Korea are separated by a distance of 5746 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 $88 on Delta. Other airlines that offer cheap prices include American Airlines from $99 and United Airlines from $163 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

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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 décembre 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$915Average$1,455FlexibilityNo cancel feeOn-timeN/A

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