Cheap Flights to Idaho from ₩586,400

View ₩586,400 flight on Mon, Mar 2, 2026Opens in a new window

Popular airlines to Idaho

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  • Delta

  • United

  • American Airlines

  • Southwest Airlines

  • Frontier Airlines

  • KLM

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How much is the cheapest flight to Idaho?

Prices were available within the past 7 days and start at ₩586,400 for one-way flights and ₩1,045,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Feb 27 - Tue, Mar 3
ICN
Seoul
GEG
Spokane
₩1,045,500 Roundtrip, found 1 day ago
₩1,045,500
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from Seoul to Spokane, returning Tue, Mar 3, priced at ₩1,045,500 found 1 day ago
Delta
Fri, Feb 27 - Tue, Mar 3
ICN
Seoul
GEG
Spokane
₩1,282,500 Roundtrip, found 1 day ago
₩1,282,500
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Feb 27 from Seoul to Spokane, returning Tue, Mar 3, priced at ₩1,282,500 found 1 day ago
Delta
Wed, Apr 1 - Wed, Apr 29
ICN
Seoul
GEG
Spokane
₩1,282,900 Roundtrip, found 4 days ago
₩1,282,900
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Apr 1 from Seoul to Spokane, returning Wed, Apr 29, priced at ₩1,282,900 found 4 days ago
United
Fri, Feb 27 - Tue, Mar 3
ICN
Seoul
GEG
Spokane
₩1,294,700 Roundtrip, found 1 day ago
₩1,294,700
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from Seoul to Spokane, returning Tue, Mar 3, priced at ₩1,294,700 found 1 day ago
United
Fri, Feb 27 - Tue, Mar 3
ICN
Seoul
GEG
Spokane
₩1,359,600 Roundtrip, found 1 day ago
₩1,359,600
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from Seoul to Spokane, returning Tue, Mar 3, priced at ₩1,359,600 found 1 day ago
Hawaiian Airlines
Sat, Feb 14 - Sat, Feb 21
ICN
Seoul
IDA
Idaho Falls
₩1,359,900 Roundtrip, found 21 hours ago
₩1,359,900
Roundtrip
found 21 hours ago
Select Hawaiian Airlines flight, departing Sat, Feb 14 from Seoul to Idaho Falls, returning Sat, Feb 21, priced at ₩1,359,900 found 21 hours ago
United
Fri, Feb 27 - Tue, Mar 3
ICN
Seoul
GEG
Spokane
₩1,367,800 Roundtrip, found 1 day ago
₩1,367,800
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from Seoul to Spokane, returning Tue, Mar 3, priced at ₩1,367,800 found 1 day ago
Korean Air
Fri, Feb 27 - Tue, Mar 3
ICN
Seoul
GEG
Spokane
₩1,382,500 Roundtrip, found 1 day ago
₩1,382,500
Roundtrip
found 1 day ago
Select Korean Air flight, departing Fri, Feb 27 from Seoul to Spokane, returning Tue, Mar 3, priced at ₩1,382,500 found 1 day ago
Korean Air
Wed, Apr 1 - Wed, Apr 29
ICN
Seoul
GEG
Spokane
₩1,382,900 Roundtrip, found 4 days ago
₩1,382,900
Roundtrip
found 4 days ago
Select Korean Air flight, departing Wed, Apr 1 from Seoul to Spokane, returning Wed, Apr 29, priced at ₩1,382,900 found 4 days ago
EVA Airways
Mon, Dec 7 - Sat, Dec 12
ICN
Seoul
BOI
Boise
₩1,456,400 Roundtrip, found 5 days ago
₩1,456,400
Roundtrip
found 5 days ago
Select EVA Airways flight, departing Mon, Dec 7 from Seoul to Boise, returning Sat, Dec 12, priced at ₩1,456,400 found 5 days ago

About Idaho

Expedia offers flights to Idaho to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Idaho or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Frequently asked questions

How do I find cheap flights to Idaho that have flexible change policies?
By using our smart "No change fee" filter, that's how. Simply type in your origin, destination and dates, click "Search," then tick the checkbox directly under the "Flexible change policies" heading (it's on the left of your screen). Expedia makes it simple to find flexible, low-cost fares to Idaho.
Which airlines fly to Idaho?
Wherever you want to wander in Idaho and whenever you're hoping to depart, you'll find your perfect flight with one of these top airlines:

  • Alaska Airlines - 815 flights to or near Idaho each month, including 754 flights to Boise Airport (BOI) and 30 flights to Friedman Memorial Airport (SUN) per month.
  • Delta Air Lines - 637 flights to or near Idaho each month, including 489 flights to Boise Airport (BOI) and 86 flights to Idaho Falls Regional Airport (IDA) per month.
  • United Airlines - 438 flights to or near Idaho each month, including 303 flights to Boise Airport (BOI) and 91 flights to Idaho Falls Regional Airport (IDA) per month.

How can I find cheap tickets to Idaho?
One of the best ways to find cheap tickets to Idaho is to be flexible with your travel dates. Search for your flights, then click "flexible dates" above the results. It'll bring up the cheapest prices for nearby days. The best price for a flight to Idaho in the last seven days was ₩1,045,500. Booking well ahead will generally help you get an even bigger bargain.
How much is a flight to Idaho?
One-way flights departing from Seoul (ICN) sold for as little as ₩586,400 in the last seven days. During this time, the price of a round-trip fare to Idaho varied between ₩1,045,500 and ₩1,456,400. If you find a deal, book quickly — these prices don't hang about.
What are the most popular airports to fly into in Idaho?
Touch down at any one of these main airports in Idaho and you'll be in the perfect position to experience all that this renowned region has to offer:

  • Boise Airport (BOI) - 1,994 flights per month.
  • Idaho Falls Regional Airport (IDA) - 334 flights per month.
  • Friedman Memorial Airport (SUN) - 134 flights per month.

When is the cheapest time to fly to Idaho?
Depart for Idaho earlier in the week and you'll usually be rewarded with lower fares. Tuesday is generally the cheapest day to jet off, followed closely by Monday. If you're eager to avoid the most expensive flights, keep clear of Saturdays.
How much is a plane ticket to Idaho?
In the last seven days, plane fares to Idaho fluctuated between ₩1,045,500 and ₩1,456,400. Prices tend to go up over time, so book a top deal today.
What is the best time to go to Idaho?
Summer starts June 20 in the Northern Hemisphere, and these warmer months are a terrific time to tour the thrilling Idaho city of Boise. Average temperatures vary between 60ºF and 80ºF throughout this season. The largest crowds are found here in May, July and August.
What months are the cheapest to book a flight to Idaho?
The most cost-effective month to land a flight to Idaho is February, while prices are at a premium in December. Steer clear of this month if you're on a budget.

Trending flights to Idaho

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Feb 27 - Tue, Mar 3
ICN
Seoul
GEG
Spokane
₩1,045,500 Roundtrip, found 1 day ago
₩1,045,500
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from Seoul to Spokane, returning Tue, Mar 3, priced at ₩1,045,500 found 1 day ago
*Available to Expedia members.