Book Cheap Flights from Idaho Falls with Alaska Airlines
Find round-trip flight deals from Idaho Falls.*
Idaho Falls (IDA)to
Seattle (SEA)
Idaho Falls (IDA)to
Anchorage (ANC)
Idaho Falls (IDA)to
Portland (PDX)
Idaho Falls (IDA)to
Boise (BOI)*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
One-way flight deals from Idaho Falls.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: May 30, 2026 | From $119 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Jun 9, 2026 | From $119 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Jun 6, 2026 | From $119 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Jun 3, 2026 | From $119 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: May 23, 2026 | From $119 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: May 24, 2026 | From $129 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Boise (BOI) | One-way | Saver | Depart: May 23, 2026 | From $177 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Boise (BOI) | One-way | Saver | Depart: Jun 2, 2026 | From $183 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Portland (PDX) | One-way | Saver | Depart: May 21, 2026 | From $189 Seen: 16 hours ago | |
| Idaho Falls (IDA) | Boise (BOI) | One-way | Saver | Depart: May 30, 2026 | From $217 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Boise (BOI) | One-way | Saver | Depart: May 24, 2026 | From $227 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Boise (BOI) | One-way | Saver | Depart: May 19, 2026 | From $237 Seen: 4 hours ago | |
| Idaho Falls (IDA) | Boise (BOI) | One-way | Saver | Depart: Jun 3, 2026 | From $267 Seen: 4 hours ago |
*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.