Book Cheap Flights from Saint Louis with Alaska Airlines
Find round-trip flight deals from Saint Louis.*
Saint Louis (STL)to
Seattle (SEA)
Saint Louis (STL)to
Portland (PDX)
Saint Louis (STL)to
Anchorage (ANC)
Saint Louis (STL)to
Vancouver (YVR)
Saint Louis (STL)to
Fairbanks (FAI)
Saint Louis (STL)to
Puerto Vallarta (PVR)
Saint Louis (STL)to
Honolulu (HNL)
Saint Louis (STL)to
Los Angeles (LAX)
Saint Louis (STL)to
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 Saint Louis.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: May 19, 2026 | From $99 Seen: 13 hours ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: May 16, 2026 | From $99 Seen: 13 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Apr 29, 2026 | From $109 Seen: 13 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Apr 21, 2026 | From $109 Seen: 3 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: May 13, 2026 | From $109 Seen: 5 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Apr 15, 2026 | From $109 Seen: 2 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Apr 14, 2026 | From $119 Seen: 13 hours ago | |
| Saint Louis (STL) | Seattle (SEA) | One-way | Saver | Depart: Apr 22, 2026 | From $119 Seen: 13 hours ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: Apr 15, 2026 | From $129 Seen: 13 hours ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: Aug 24, 2026 | From $135 Seen: 13 hours ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: Aug 25, 2026 | From $135 Seen: 13 hours ago | |
| Saint Louis (STL) | Portland (PDX) | One-way | Saver | Depart: Aug 26, 2026 | From $135 Seen: 13 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: May 19, 2026 | From $152 Seen: 13 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: Apr 21, 2026 | From $179 Seen: 13 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: Apr 29, 2026 | From $179 Seen: 13 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: May 13, 2026 | From $179 Seen: 13 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: May 16, 2026 | From $179 Seen: 13 hours ago | |
| Saint Louis (STL) | Bellingham (BLI) | One-way | Saver | Depart: May 5, 2026 | From $179 Seen: 13 hours ago | |
| Saint Louis (STL) | Anchorage (ANC) | One-way | Saver | Depart: May 13, 2026 | From $180 Seen: 13 hours ago | |
| Saint Louis (STL) | Anchorage (ANC) | One-way | Saver | Depart: May 15, 2026 | From $180 Seen: 13 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.