Book Cheap Flights from Portland with Alaska Airlines
Find round-trip flight deals from Portland.*
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Ontario (ONT)*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 Portland.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Portland (PDX) | Denver (DEN) | One-way | Saver | Depart: Apr 21, 2026 | From $69 Seen: 7 hours ago | |
| Portland (PDX) | Denver (DEN) | One-way | Saver | Depart: Apr 28, 2026 | From $69 Seen: 7 hours ago | |
| Portland (PDX) | Denver (DEN) | One-way | Saver | Depart: May 5, 2026 | From $69 Seen: 7 hours ago | |
| Portland (PDX) | Denver (DEN) | One-way | Saver | Depart: May 20, 2026 | From $69 Seen: 7 hours ago | |
| Portland (PDX) | Denver (DEN) | One-way | Saver | Depart: Feb 28, 2026 | From $69 Seen: 7 hours ago | |
| Portland (PDX) | Denver (DEN) | One-way | Saver | Depart: Mar 7, 2026 | From $69 Seen: 7 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 27, 2026 | From $70 Seen: 7 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 28, 2026 | From $70 Seen: 7 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 30, 2026 | From $70 Seen: 7 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 31, 2026 | From $70 Seen: 7 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 25, 2026 | From $70 Seen: 7 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 26, 2026 | From $70 Seen: 7 hours ago | |
| Portland (PDX) | Boise (BOI) | One-way | Saver | Depart: Feb 24, 2026 | From $79 Seen: 7 hours ago | |
| Portland (PDX) | Boise (BOI) | One-way | Saver | Depart: Apr 25, 2026 | From $79 Seen: 7 hours ago | |
| Portland (PDX) | Boise (BOI) | One-way | Saver | Depart: May 2, 2026 | From $79 Seen: 7 hours ago | |
| Portland (PDX) | Boise (BOI) | One-way | Saver | Depart: May 12, 2026 | From $79 Seen: 7 hours ago | |
| Portland (PDX) | Boise (BOI) | One-way | Saver | Depart: May 16, 2026 | From $79 Seen: 7 hours ago | |
| Portland (PDX) | Boise (BOI) | One-way | Saver | Depart: Mar 14, 2026 | From $79 Seen: 7 hours ago | |
| Portland (PDX) | Reno (RNO) | One-way | Saver | Depart: Mar 3, 2026 | From $79 Seen: 7 hours ago | |
| Portland (PDX) | Reno (RNO) | One-way | Saver | Depart: Mar 10, 2026 | From $79 Seen: 7 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.