Alaska Airlines Flights from Idaho Falls to Seattle
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1 Passenger
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Lowest fares from Idaho Falls to Seattle
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One-way low-fare flights Idaho Falls to Seattle.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Oct 29, 2025 | From $109 Seen: 2 minutes ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Nov 1, 2025 | From $109 Seen: 2 minutes ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Nov 4, 2025 | From $109 Seen: 2 minutes ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Nov 10, 2025 | From $109 Seen: 2 minutes ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Nov 15, 2025 | From $109 Seen: 2 minutes ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Dec 8, 2025 | From $109 Seen: 2 minutes ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Dec 10, 2025 | From $109 Seen: 2 minutes ago | |
| Idaho Falls (IDA) | Seattle (SEA) | One-way | Saver | Depart: Dec 16, 2025 | From $109 Seen: 2 minutes 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.