Cheap Flights to Southern Idaho

View ₩669,000 flight on Sat, Jun 20, 2026Opens in a new window

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How much is the cheapest flight to Southern Idaho?

Prices were available within the past 7 days and start at ₩669,000 for one-way flights and ₩798,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Jun 20 - Sat, Jul 4
IAD
Washington
IDA
Idaho Falls
₩798,300 Roundtrip, found 1 day ago
₩798,300
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jun 20 from Washington to Idaho Falls, returning Sat, Jul 4, priced at ₩798,300 found 1 day ago
United
Sat, Jun 20 - Sat, Jul 4
IAD
Washington
IDA
Idaho Falls
₩911,500 Roundtrip, found 1 day ago
₩911,500
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jun 20 from Washington to Idaho Falls, returning Sat, Jul 4, priced at ₩911,500 found 1 day ago
American Airlines
Sat, Jun 20 - Sun, Jun 21
DCA
Washington
IDA
Idaho Falls
₩1,526,400 Roundtrip, found 1 day ago
₩1,526,400
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Jun 20 from Washington to Idaho Falls, returning Sun, Jun 21, priced at ₩1,526,400 found 1 day ago
KLM
Sat, Jun 20 - Sun, Jun 21
NWI
Norwich
IDA
Idaho Falls
₩2,929,100 Roundtrip, found 1 day ago
₩2,929,100
Roundtrip
found 1 day ago
Select KLM flight, departing Sat, Jun 20 from Norwich to Idaho Falls, returning Sun, Jun 21, priced at ₩2,929,100 found 1 day ago
Air France
Sat, Jun 20 - Sun, Jun 21
NWI
Norwich
IDA
Idaho Falls
₩5,664,000 Roundtrip, found 1 day ago
₩5,664,000
Roundtrip
found 1 day ago
Select Air France flight, departing Sat, Jun 20 from Norwich to Idaho Falls, returning Sun, Jun 21, priced at ₩5,664,000 found 1 day ago

Find the cheapest month to fly from Columbus (CMH) to Boise (BOI)

September is typically the cheapest month to fly

From ₩295,398 - ₩812,046 per traveler.

Searching for cheap flights to Southern Idaho? No travel company presents more choices than Expedia if you're looking to compare flights to Southern Idaho. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Idaho. Expedia provides the cheapest flights to many destinations in Idaho and you may find even greater savings if you combine your flight with a hotel stay in Southern Idaho.

Flights to Southern Idaho information
Destination airport
Twin Falls
Destination airport IATA code
TWF
Destination city name
Twin Falls
Roundtrip price
₩1,672,400
*Available to Expedia members.