How long is the flight from Idaho to Seoul?

There are many flights that can get you from Idaho to Seoul in 18h 55m. Fly via United Airlines, Delta, or Japan Airlines to get the fastest option. Airlines will cover a distance of 5746 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

If weather is an important factor for your trip to Seoul, 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 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Idaho to Seoul?

The most popular flight routes from Idaho to Seoul are Spokane - Incheon Intl, Boise Air Term. Gowen Fld - Incheon Intl and Spokane - Seoul Gimpo Intl.

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

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

How can I find direct flights from Idaho to Seoul?

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

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

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

$379+ Flights from Idaho to Seoul

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Cheap flight deals from Idaho to Seoul

Cheapest flights from Idaho to Seoul
Explore the most affordable flight options available from Idaho to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Mon 12/226:55 pmBOI - ICN

1 stop29h 20mUnited Airlines

Mon 1/1212:45 pmICN - BOI

2 stops23h 00mUnited Airlines

Deal found 12/17

$1,335

Sun 12/287:23 pmGEG - ICN

1 stop28h 07mDelta

Thu 1/88:05 pmICN - GEG

1 stop17h 53mDelta

Deal found 12/15

$1,540

Sun 12/281:47 pmGEG - ICN

2 stops33h 28mUnited Airlines

Thu 1/812:45 pmICN - GEG

2 stops25h 37mUnited Airlines

Deal found 12/17

$1,616

Mon 12/226:19 pmBOI - ICN

2 stops31h 16mDelta

Mon 1/128:05 pmICN - BOI

1 stop17h 53mDelta

Deal found 12/15

$1,638

Tue 12/165:25 pmBOI - ICN

2 stops30h 50mUnited Airlines

Mon 12/2912:45 pmICN - BOI

2 stops25h 45mUnited Airlines

Deal found 12/16

$1,685

Tue 12/168:26 pmBOI - ICN

1 stop28h 04mMultiple Airlines

Mon 12/298:05 pmICN - BOI

1 stop13h 22mMultiple Airlines

Deal found 12/16

$1,743

Sat 12/205:50 amBOI - ICN

1 stop18h 30mMultiple Airlines

Mon 12/227:40 pmICN - BOI

1 stop17h 45mMultiple Airlines

Deal found 12/16

$2,075

Mon 12/227:00 amBOI - GMP

2 stops23h 05mMultiple Airlines

Mon 1/128:00 amGMP - BOI

2 stops21h 35mMultiple Airlines

Deal found 12/15

$2,925

Tue 12/168:20 pmBOI - GMP

2 stops30h 15mMultiple Airlines

Mon 12/293:50 pmGMP - BOI

2 stops23h 12mMultiple Airlines

Deal found 12/16

$3,076

Sun 12/285:41 pmGEG - GMP

2 stops24h 14mMultiple Airlines

Thu 1/812:05 pmGMP - GEG

2 stops21h 14mMultiple Airlines

Deal found 12/17

$5,727

Wed 12/178:20 pmBOI - GMP

2 stops33h 45mMultiple Airlines

Tue 12/2312:25 pmGMP - BOI

2 stops43h 43mMultiple Airlines

Deal found 12/16

$9,505

Best flights from Idaho to Seoul
Discover carefully curated flight deals from Idaho to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Sat 1/319:00 amIDA - ICN

1 stop17h 35mMultiple Airlines

Sat 2/78:35 pmICN - IDA

1 stop13h 43mMultiple Airlines

Deal found 12/17

$716

Sat 1/242:20 pmBOI - ICN

1 stop23h 20mUnited Airlines

Wed 1/2812:45 pmICN - BOI

1 stop19h 25mUnited Airlines

Deal found 12/16

$816

Sat 1/315:25 amIDA - ICN

1 stop18h 55mDelta

Sat 2/77:30 pmICN - IDA

2 stops19h 27mDelta

Deal found 12/17

$820

Tue 5/127:00 pmBOI - ICN

2 stops32h 45mEVA Air

Thu 6/412:00 pmICN - BOI

2 stops26h 45mEVA Air

Deal found 12/17

$1,021

Sat 1/247:25 amBOI - ICN

1 stop18h 10mKorean Air

Wed 1/288:05 pmICN - BOI

1 stop14h 23mKorean Air

Deal found 12/15

$1,059

Mon 1/1210:05 amGEG - GMP

2 stops31h 50mJapan Airlines

Fri 1/167:40 pmGMP - GEG

2 stops34h 04mJapan Airlines

Deal found 12/16

$1,080

Wed 3/254:00 pmIDA - ICN

1 stop35h 35mMultiple Airlines

Wed 4/18:35 pmICN - IDA

1 stop17h 00mMultiple Airlines

Deal found 12/17

$721

Mon 2/26:05 amGEG - ICN

1 stop17h 25mDelta

Fri 2/208:05 pmICN - GEG

1 stop19h 45mDelta

Deal found 12/16

$827

Sat 1/311:48 pmGEG - ICN

2 stops22h 52mUnited Airlines

Sat 2/712:45 pmICN - GEG

1 stop14h 59mUnited Airlines

Deal found 12/17

$831

Fri 2/135:00 amGEG - ICN

1 stop18h 30mDelta

Sun 2/228:05 pmICN - GEG

1 stop20h 59mDelta

Deal found 12/15

$827

Thu 1/2910:05 amGEG - ICN

1 stop15h 30mMultiple Airlines

Thu 2/58:35 pmICN - GEG

1 stop17h 50mMultiple Airlines

Deal found 12/15

$827

Thu 2/59:20 amGEG - ICN

1 stop14h 10mDelta

Sat 2/148:05 pmICN - GEG

1 stop17h 51mDelta

Deal found 12/16

$827

Thu 1/87:30 amGEG - ICN

1 stop18h 05mMultiple Airlines

Fri 1/168:35 pmICN - GEG

1 stop13h 31mMultiple Airlines

Deal found 12/16

$861

Fri 2/66:05 amGEG - ICN

1 stop17h 25mDelta

Sun 2/158:05 pmICN - GEG

1 stop20h 59mDelta

Deal found 12/16

$827

Sun 2/222:40 pmIDA - ICN

2 stops33h 35mUnited Airlines

Thu 2/2612:45 pmICN - IDA

2 stops37h 03mUnited Airlines

Deal found 12/16

$1,013

Fri 2/69:20 amGEG - ICN

1 stop14h 10mDelta

Fri 2/208:05 pmICN - GEG

1 stop20h 59mDelta

Deal found 12/16

$827

Mon 1/1210:05 amGEG - GMP

2 stops19h 00mJapan Airlines

Sat 1/178:00 amGMP - GEG

2 stops21h 44mJapan Airlines

Deal found 12/16

$1,232

Sun 4/126:15 amIDA - ICN

1 stop21h 20mMultiple Airlines

Thu 4/168:35 pmICN - IDA

1 stop17h 00mMultiple Airlines

Deal found 12/15

$933

Wed 2/46:05 amGEG - ICN

1 stop17h 25mDelta

Sat 2/148:05 pmICN - GEG

1 stop15h 50mDelta

Deal found 12/16

$827

Mon 3/306:15 amIDA - ICN

1 stop21h 20mMultiple Airlines

Fri 4/38:35 pmICN - IDA

1 stop33h 45mMultiple Airlines

Deal found 12/16

$953

Sat 1/317:20 amGEG - ICN

1 stop16h 10mDelta

Wed 2/188:05 pmICN - GEG

1 stop19h 45mDelta

Deal found 12/16

$827

Mon 2/2310:00 amGEG - GMP

2 stops19h 05mJapan Airlines

Thu 2/2612:05 pmGMP - GEG

2 stops19h 31mJapan Airlines

Deal found 12/15

$1,350

Thu 1/296:50 amGEG - GMP

2 stops22h 15mMultiple Airlines

Thu 2/58:00 amGMP - GEG

2 stops24h 25mMultiple Airlines

Deal found 12/15

$961

Tue 2/35:05 amGEG - ICN

1 stop18h 25mDelta

Mon 2/168:05 pmICN - GEG

1 stop17h 51mDelta

Deal found 12/16

$827

Thu 1/810:05 amGEG - GMP

2 stops19h 00mJapan Airlines

Thu 1/157:40 pmGMP - GEG

2 stops34h 04mJapan Airlines

Deal found 12/16

$1,358

Sun 2/19:20 amGEG - ICN

1 stop14h 10mDelta

Sat 2/148:05 pmICN - GEG

1 stop19h 37mDelta

Deal found 12/16

$827

Tue 2/310:05 amGEG - GMP

2 stops19h 00mJapan Airlines

Mon 2/168:00 amGMP - GEG

2 stops23h 36mJapan Airlines

Deal found 12/16

$1,383

Tue 5/268:59 pmBOI - ICN

1 stop16h 21mMultiple Airlines

Tue 6/169:00 pmICN - BOI

1 stop16h 47mMultiple Airlines

Deal found 12/15

$1,065

Mon 2/238:10 amGEG - GMP

2 stops20h 55mMultiple Airlines

Thu 2/2612:05 pmGMP - GEG

2 stops19h 31mMultiple Airlines

Deal found 12/15

$1,092

Tue 2/310:05 amGEG - GMP

2 stops19h 00mJapan Airlines

Tue 2/178:00 amGMP - GEG

2 stops23h 36mJapan Airlines

Deal found 12/16

$1,508

Last-minute flights from Idaho to Seoul
Discover last-minute flight deals from Idaho to Seoul. Data last updated December 18, 2025 and is based on user searches.

Wed 1/77:49 pmGEG - ICN

1 stop29h 46mMultiple Airlines

Sat 1/178:35 pmICN - GEG

1 stop14h 14mMultiple Airlines

Deal found 12/16

$866

Wed 1/76:29 pmGEG - ICN

1 stop31h 06mMultiple Airlines

Thu 1/158:35 pmICN - GEG

1 stop17h 50mMultiple Airlines

Deal found 12/16

$891

Thu 1/87:30 amGEG - ICN

1 stop18h 05mMultiple Airlines

Fri 1/168:35 pmICN - GEG

1 stop13h 31mMultiple Airlines

Deal found 12/16

$861

Thu 1/87:30 amGEG - ICN

1 stop18h 05mMultiple Airlines

Thu 1/158:35 pmICN - GEG

1 stop17h 50mMultiple Airlines

Deal found 12/16

$886

Fri 1/95:45 amGEG - ICN

1 stop19h 50mMultiple Airlines

Fri 1/168:35 pmICN - GEG

1 stop13h 31mMultiple Airlines

Deal found 12/16

$904

Sat 1/106:29 pmGEG - ICN

1 stop31h 06mMultiple Airlines

Sat 1/178:35 pmICN - GEG

1 stop14h 14mMultiple Airlines

Deal found 12/16

$909

Sat 1/242:20 pmBOI - ICN

1 stop23h 20mUnited Airlines

Wed 1/2812:45 pmICN - BOI

1 stop19h 25mUnited Airlines

Deal found 12/16

$816

Sat 1/319:00 amIDA - ICN

1 stop17h 35mMultiple Airlines

Sat 2/78:35 pmICN - IDA

1 stop13h 43mMultiple Airlines

Deal found 12/17

$716

Sat 1/316:20 amGEG - ICN

1 stop17h 10mDelta

Sat 2/78:05 pmICN - GEG

1 stop19h 47mDelta

Deal found 12/17

$727

Sat 1/315:25 amIDA - ICN

1 stop18h 55mDelta

Sat 2/77:30 pmICN - IDA

2 stops19h 27mDelta

Deal found 12/17

$820

Sat 1/319:20 amGEG - ICN

1 stop14h 10mDelta

Sun 2/158:05 pmICN - GEG

1 stop15h 35mDelta

Deal found 12/16

$827

Sat 1/311:48 pmGEG - ICN

2 stops22h 52mUnited Airlines

Sat 2/712:45 pmICN - GEG

2 stops25h 37mUnited Airlines

Deal found 12/17

$831

One-way flights from Idaho to Seoul
Search for one-way flight options from Idaho to Seoul. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Sat 3/284:30 pmBOI - ICN

1 stop35h 05mMultiple Airlines

Deal found 12/17

$379

Sat 3/285:45 pmGEG - ICN

1 stop32h 50mMultiple Airlines

Deal found 12/17

$419

Sat 3/286:00 amBOI - ICN

2 stops19h 50mDelta

Deal found 12/16

$508

Sat 3/286:40 amGEG - GMP

2 stops23h 10mMultiple Airlines

Deal found 12/15

$1,644

Sat 3/288:39 amBOI - GMP

2 stops46h 41mANA

Deal found 12/17

$1,772

Find flight deals from Idaho to Seoul

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.

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From Idaho to Seoul (SEL)

Search Deals

One-way flight from Idaho to Seoul (SEL)

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Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsIncheon

IDA - ICN

IDAICN

Idaho Falls Fanning Field

Sat 1/31

9:00 am-6:35 pm

1 stop17h 35m

Incheon Intl

Sat 2/7

8:35 pm-6:18 pm

1 stop13h 43m

$716

Idaho FallsIncheon

IDA - ICN

IDAICN

Idaho Falls Fanning Field

Wed 3/25

4:00 pm-6:35 pm

1 stop35h 35m

Incheon Intl

Wed 4/1

8:35 pm-10:35 pm

1 stop17h 00m

$721

BoiseIncheon

BOI - ICN

BOIICN

Boise Air Term. Gowen Fld

Sat 1/24

2:20 pm-5:40 am

1 stop23h 20m

Incheon Intl

Wed 1/28

12:45 pm-4:10 pm

1 stop19h 25m

$816

Idaho FallsIncheon

IDA - ICN

IDAICN

Idaho Falls Fanning Field

Sat 1/31

5:25 am-4:20 pm

1 stop18h 55m

Incheon Intl

Sat 2/7

7:30 pm-10:57 pm

2 stops19h 27m

$820

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

Mon 2/2

6:05 am-4:30 pm

1 stop17h 25m

Incheon Intl

Fri 2/20

8:05 pm-10:50 pm

1 stop19h 45m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

Fri 2/13

5:00 am-4:30 pm

1 stop18h 30m

Incheon Intl

Sun 2/22

8:05 pm-12:04 am

1 stop20h 59m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

Thu 1/29

10:05 am-6:35 pm

1 stop15h 30m

Incheon Intl

Thu 2/5

8:35 pm-9:25 pm

1 stop17h 50m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

Thu 2/5

9:20 am-4:30 pm

1 stop14h 10m

Incheon Intl

Sat 2/14

8:05 pm-8:56 pm

1 stop17h 51m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

Fri 2/6

6:05 am-4:30 pm

1 stop17h 25m

Incheon Intl

Sun 2/15

8:05 pm-12:04 am

1 stop20h 59m

$827

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

Fri 2/6

9:20 am-4:30 pm

1 stop14h 10m

Incheon Intl

Fri 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

Best time to book a flight from Idaho to Seoul

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

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

Unlike in the morning, when flights are generally more expensive, you can save up to 31% on flights from Idaho to Seoul by exploring options for tickets in the afternoon.

Related info for your journey

How long is the flight from Idaho to Seoul?
There are many flights that can get you from Idaho to Seoul in 18h 55m. Fly via United Airlines, Delta, or Japan Airlines to get the fastest option. Airlines will cover 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 most popular routes from Idaho to Seoul?
The most popular flight routes from Idaho to Seoul are Spokane - Incheon Intl, Boise Air Term. Gowen Fld - Incheon Intl and Spokane - Seoul Gimpo Intl.
Can I find deals for flights from Idaho to Seoul that include hotel bookings?
Yes. In addition to deals on Idaho to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Idaho to Seoul?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Seoul.
Can I find deals for business class flights from Idaho to Seoul?
Yes. Cheapflights offers flight deals from Idaho to Seoul 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

Alternative routes for Idaho to Seoul

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Incheon Intl Airport to Singapore flights

Incheon Intl Airport to Okinawa flights

Incheon Intl Airport to Bangkok Don Mueang Intl Airport flights

Top airline flying from Idaho to Seoul

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$915	Average$1,455	FlexibilityNo cancel fee	On-timeN/A

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$379+ Cheap flights from Idaho to Seoul (SEL)

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.

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Cheap flight deals from Idaho to Seoul

Cheapest flights from Idaho to SeoulExplore the most affordable flight options available from Idaho to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Explore the most affordable flight options available from Idaho to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Find flight deals from Idaho to Seoul

Keep the following information in mind while searching for Idaho to Seoul flight deals. Data was last updated December 18, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Cheapflights Fare Finder

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

Best time to book a flight from Idaho to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Idaho with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Seoul

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

Find hourly flight availability from Idaho to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

Related info for your journey

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

What are the most popular routes from Idaho to Seoul?

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

How can I find direct flights from Idaho to Seoul?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Idaho to Seoul

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Idaho to Seoul

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Cheapest flights from Idaho to Seoul
Explore the most affordable flight options available from Idaho to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.