Lowest Priced Flights to Saint Louis on Alaska Airlines starting at $119*
Most popular flights to Saint Louis on Alaska Airlines.*
Seattle (SEA)to
Saint Louis (STL)Seattle (SEA)to
Saint Louis (STL)Seattle (SEA)to
Saint Louis (STL)Seattle (SEA)to
Saint Louis (STL)Seattle (SEA)to
Saint Louis (STL)Anchorage (ANC)to
Saint Louis (STL)Anchorage (ANC)to
Saint Louis (STL)Anchorage (ANC)to
Saint Louis (STL)Puerto Vallarta (PVR)to
Saint Louis (STL)*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
Top offers for Saint Louis one-way flights.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Seattle (SEA) | Saint Louis (STL) | One-way | Main | Depart: May 28, 2025 | From $164 Seen: 14 hours ago | |
| Seattle (SEA) | Saint Louis (STL) | One-way | Main | Depart: Sep 19, 2025 | From $170 Seen: 16 hours ago | |
| Seattle (SEA) | Saint Louis (STL) | One-way | Main | Depart: May 29, 2025 | From $170 Seen: 14 hours ago | |
| Seattle (SEA) | Saint Louis (STL) | One-way | Main | Depart: Sep 3, 2025 | From $170 Seen: 17 hours ago | |
| Seattle (SEA) | Saint Louis (STL) | One-way | Main | Depart: Sep 25, 2025 | From $170 Seen: 15 hours ago | |
| Seattle (SEA) | Saint Louis (STL) | One-way | Main | Depart: May 30, 2025 | From $170 Seen: 14 hours ago | |
| Portland (PDX) | Saint Louis (STL) | One-way | Main | Depart: Sep 1, 2025 | From $184 Seen: 16 minutes ago | |
| Anchorage (ANC) | Saint Louis (STL) | One-way | Main | Depart: Jun 10, 2025 | From $309 Seen: 14 hours ago | |
| Portland (PDX) | Saint Louis (STL) | One-way | Main | Depart: Jun 7, 2025 | From $319 Seen: 10 hours ago | |
| Anchorage (ANC) | Saint Louis (STL) | One-way | Main | Depart: Jun 1, 2025 | From $369 Seen: 3 hours ago | |
| Anchorage (ANC) | Saint Louis (STL) | One-way | Main | Depart: Aug 16, 2025 | From $510 Seen: 13 hours ago | |
| Anchorage (ANC) | Saint Louis (STL) | One-way | Main | Depart: Jul 14, 2025 | From $510 Seen: 1 hour ago | |
| Anchorage (ANC) | Saint Louis (STL) | One-way | Main | Depart: Jul 26, 2025 | From $684 Seen: 17 hours ago |
*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
Plan a trip to Saint Louis
St. Louis, Missouri - the Gateway City - was founded by French settlers and later ruled by Spain. Its position along the Mississippi River made it a perfect point for launching the Lewis and Clark expedition and for shipping goods by steamboat. The importance of St. Louis was celebrated at both the 1904 Olympics and the 1904 Louisiana Purchase Exposition; the St. Louis Art Museum was originally commissioned for the 1904 Exposition. Admission is free and the museum houses an expansive collection of African American art. The Museum of Westward Expansion is worth a visit, too, with its showcase on the early years and people of St. Louis. Then, get outside for a walk through the fantastic Missouri Botanical Garden, designed in 1859. Or, ride a bicycle along the 5-mile bike and walking trail of lush Forest Park.
View airport information for St. Louis (STL)