Alaska Airlines Flights from Portland to Great Falls
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1 Passenger
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Lowest fares from Portland to Great Falls
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One-way low-fare flights Portland to Great Falls.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Portland (PDX) | Great Falls (GTF) | One-way | Saver | Depart: Mar 3, 2026 | From $93 Seen: 17 hours ago | |
| Portland (PDX) | Great Falls (GTF) | One-way | Saver | Depart: Apr 11, 2026 | From $123 Seen: 18 hours ago | |
| Portland (PDX) | Great Falls (GTF) | One-way | Saver | Depart: Apr 4, 2026 | From $128 Seen: 16 hours ago | |
| Portland (PDX) | Great Falls (GTF) | One-way | Saver | Depart: Feb 24, 2026 | From $128 Seen: 17 hours ago | |
| Portland (PDX) | Great Falls (GTF) | One-way | Saver | Depart: Feb 28, 2026 | From $134 Seen: 17 hours ago | |
| Portland (PDX) | Great Falls (GTF) | One-way | Saver | Depart: May 27, 2026 | From $182 Seen: 17 hours ago | |
| Portland (PDX) | Great Falls (GTF) | One-way | Saver | Depart: Feb 10, 2026 | From $382 Seen: 11 hours ago | |
| Portland (PDX) | Great Falls (GTF) | One-way | Saver | Depart: Feb 4, 2026 | From $482 Seen: 21 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.