Cheap Flights to Lost River

View ₩168,500 flight on Tue, May 12, 2026Opens in a new window

Popular airlines to Lost River

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Lost River?

Prices were available within the past 7 days and start at ₩168,500 for one-way flights and ₩446,900 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, May 12 - Fri, May 15
SFO
San Francisco
IDA
Idaho Falls
₩446,900 Roundtrip, found 13 hours ago
₩446,900
Roundtrip
found 13 hours ago
Select Delta flight, departing Tue, May 12 from San Francisco to Idaho Falls, returning Fri, May 15, priced at ₩446,900 found 13 hours ago
Delta
Tue, May 12 - Fri, May 15
SFO
San Francisco
IDA
Idaho Falls
₩490,000 Roundtrip, found 13 hours ago
₩490,000
Roundtrip
found 13 hours ago
Select Delta flight, departing Tue, May 12 from San Francisco to Idaho Falls, returning Fri, May 15, priced at ₩490,000 found 13 hours ago
Delta
Tue, May 12 - Fri, May 15
SEA
Seattle
IDA
Idaho Falls
₩498,800 Roundtrip, found 13 hours ago
₩498,800
Roundtrip
found 13 hours ago
Select Delta flight, departing Tue, May 12 from Seattle to Idaho Falls, returning Fri, May 15, priced at ₩498,800 found 13 hours ago
United
Tue, May 12 - Fri, May 15
SFO
San Francisco
IDA
Idaho Falls
₩684,700 Roundtrip, found 13 hours ago
₩684,700
Roundtrip
found 13 hours ago
Select United flight, departing Tue, May 12 from San Francisco to Idaho Falls, returning Fri, May 15, priced at ₩684,700 found 13 hours ago
American Airlines
Tue, May 12 - Fri, May 15
SFO
San Francisco
IDA
Idaho Falls
₩1,131,792 Roundtrip, found 13 hours ago
₩1,131,792
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Tue, May 12 from San Francisco to Idaho Falls, returning Fri, May 15, priced at ₩1,131,792 found 13 hours ago

Find the cheapest month to fly from Columbus (CMH) to Jackson (JAC)

January is typically the cheapest month to fly

From ₩398,920 - ₩1,121,740 per traveler.

Book with confidence

Searching for cheap flights to Lost River? No travel company presents more choices than Expedia if you're looking to compare flights to Lost River. 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 Lost River.

Travel information

Destination airport
Friedman Memorial
Destination airport IATA code
SUN
Destination city name
Sun Valley
Roundtrip price
₩1,082,800
*Available to Expedia members.