Book Cheap Flights from Denver with Alaska Airlines
Find round-trip flight deals from Denver.*
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Bellingham (BLI)*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 Denver.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Denver (DEN) | San Diego (SAN) | One-way | Saver | Depart: Apr 8, 2026 | From $49 Seen: 1 hour ago | |
| Denver (DEN) | San Diego (SAN) | One-way | Saver | Depart: Apr 15, 2026 | From $49 Seen: 3 hours ago | |
| Denver (DEN) | San Diego (SAN) | One-way | Saver | Depart: Apr 7, 2026 | From $49 Seen: 19 minutes ago | |
| Denver (DEN) | Seattle (SEA) | One-way | Saver | Depart: Apr 14, 2026 | From $59 Seen: 7 hours ago | |
| Denver (DEN) | Seattle (SEA) | One-way | Saver | Depart: Mar 31, 2026 | From $59 Seen: 7 hours ago | |
| Denver (DEN) | Seattle (SEA) | One-way | Saver | Depart: May 12, 2026 | From $59 Seen: 10 hours ago | |
| Denver (DEN) | Seattle (SEA) | One-way | Saver | Depart: May 3, 2026 | From $59 Seen: 10 hours ago | |
| Denver (DEN) | Seattle (SEA) | One-way | Saver | Depart: Apr 7, 2026 | From $59 Seen: 7 hours ago | |
| Denver (DEN) | Seattle (SEA) | One-way | Saver | Depart: Apr 26, 2026 | From $59 Seen: 4 hours ago | |
| Denver (DEN) | Portland (PDX) | One-way | Saver | Depart: Apr 14, 2026 | From $59 Seen: 2 hours ago | |
| Denver (DEN) | Portland (PDX) | One-way | Saver | Depart: Apr 22, 2026 | From $59 Seen: 3 hours ago | |
| Denver (DEN) | San Diego (SAN) | One-way | Saver | Depart: Apr 2, 2026 | From $59 Seen: 12 hours ago | |
| Denver (DEN) | San Diego (SAN) | One-way | Saver | Depart: Mar 31, 2026 | From $59 Seen: 9 hours ago | |
| Denver (DEN) | San Diego (SAN) | One-way | Saver | Depart: Apr 19, 2026 | From $59 Seen: 11 hours ago | |
| Denver (DEN) | Portland (PDX) | One-way | Saver | Depart: May 16, 2026 | From $69 Seen: 9 hours ago | |
| Denver (DEN) | Portland (PDX) | One-way | Saver | Depart: Mar 24, 2026 | From $69 Seen: 11 hours ago | |
| Denver (DEN) | Portland (PDX) | One-way | Saver | Depart: Apr 3, 2026 | From $79 Seen: 12 hours ago | |
| Denver (DEN) | Portland (PDX) | One-way | Saver | Depart: Apr 18, 2026 | From $79 Seen: 2 hours ago | |
| Denver (DEN) | San Francisco (SFO) | One-way | Saver | Depart: May 6, 2026 | From $89 Seen: 48 minutes ago | |
| Denver (DEN) | Phoenix (PHX) | One-way | Saver | Depart: Apr 16, 2026 | From $99 Seen: 15 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.