Book Cheap Flights from Saint Louis with Alaska Airlines
Find round-trip flight deals from Saint Louis.*
Saint Louis (STL)to
Anchorage (ANC)
Saint Louis (STL)to
Seattle (SEA)
Saint Louis (STL)to
Fairbanks (FAI)
Saint Louis (STL)to
Portland (PDX)
Saint Louis (STL)to
Puerto Vallarta (PVR)
Saint Louis (STL)to
Bellingham (BLI)
Saint Louis (STL)to
Vancouver (YVR)
Saint Louis (STL)to
Honolulu (HNL)*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 Saint Louis.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: Jul 29, 2026 | From $125 Seen: 1 hour ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: May 27, 2026 | From $139 Seen: 10 hours ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: May 30, 2026 | From $139 Seen: 10 hours ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: Jun 6, 2026 | From $139 Seen: 10 hours ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: Aug 11, 2026 | From $145 Seen: 10 hours ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: Jul 4, 2026 | From $145 Seen: 10 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Jun 2, 2026 | From $159 Seen: 10 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Jun 9, 2026 | From $159 Seen: 10 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Jun 6, 2026 | From $159 Seen: 10 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Aug 25, 2026 | From $170 Seen: 10 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Aug 12, 2026 | From $170 Seen: 10 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Sep 2, 2026 | From $170 Seen: 10 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: Jun 9, 2026 | From $199 Seen: 10 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: Jun 6, 2026 | From $199 Seen: 10 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: Jun 2, 2026 | From $219 Seen: 10 hours ago | |
| Saint Louis (STL) | Anchorage (ANC) | One-way | Saver | Depart: May 29, 2026 | From $230 Seen: 10 hours ago | |
| Saint Louis (STL) | Anchorage (ANC) | One-way | Saver | Depart: May 30, 2026 | From $230 Seen: 10 hours ago | |
| Saint Louis (STL) | Anchorage (ANC) | One-way | Saver | Depart: May 27, 2026 | From $230 Seen: 10 hours ago | |
| Saint Louis (STL) | Los Angeles (LAX) | One-way | Saver | Depart: Jun 20, 2026 | From $237 Seen: 2 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: Aug 18, 2026 | From $253 Seen: 10 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.