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Flights to St. Louis, MO
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Traveling to St. Louis, MO
The Gateway to the West
Catch a flight to St. Louis and enjoy a fun, modern city packed with culture and history for everyone. Marvel at the giant free-standing Gateway Arch, watch the animals prowl at the St Louis Zoo, and take the kids to City Museum for a unique, interactive experience.
Where Locals Go
Museum at the Gateway Arch
Forrest Park
Pappy's Smokehouse
Broadway Oyster Bar
Best Deals on Flights to St. Louis, MO
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Denver, CO (DEN)To
St. Louis, MO (STL)Departing Aug 20, 2026
From
$48
Last seen: 14 hours ago
One-way
Discount Den Basic Fare
Orlando, FL (MCO)To
St. Louis, MO (STL)Departing Aug 24, 2026
From
$39
Last seen: 7 hours ago
One-way
Discount Den Basic Fare
Atlanta, GA (ATL)To
St. Louis, MO (STL)Departing Aug 20, 2026
From
$22
Last seen: 13 hours ago
One-way
Discount Den Basic Fare
Dallas, TX (DFW)To
St. Louis, MO (STL)Departing Aug 28, 2026
From
$52
Last seen: 6 hours ago
One-way
Discount Den Basic Fare
Las Vegas, NV (LAS)To
St. Louis, MO (STL)Departing Aug 7, 2026
From
$73
Last seen: 2 hours ago
One-way
Discount Den Basic Fare
Cancun, MX (CUN)To
St. Louis, MO (STL)Departing Nov 11, 2026
From
$263
Last seen: 5 hours ago
One-way
Discount Den Basic Fare
Punta Cana, Dominican Republic (PUJ)To
St. Louis, MO (STL)Departing Aug 17, 2026
From
$308
Last seen: 11 hours ago
One-way
Discount Den Basic Fare
*Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.
Best Flight Deals to St. Louis, MO with Frontier
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From | To | |||
|---|---|---|---|---|
| Denver, CO (DEN) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Sep 23, 2026 | From $48 Last seen: 14 hours ago |
| Orlando, FL (MCO) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Oct 22, 2026 | From $39 Last seen: 10 hours ago |
| Atlanta, GA (ATL) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Nov 5, 2026 | From $22 Last seen: 1 hour ago |
| Dallas, TX (DFW) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Aug 28, 2026 | From $52 Last seen: 6 hours ago |
| Las Vegas, NV (LAS) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Sep 6, 2026 | From $91 Last seen: 2 hours ago |
| Cancun, MX (CUN) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Nov 11, 2026 | From $263 Last seen: 5 hours ago |
| Punta Cana, Dominican Republic (PUJ) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Dec 12, 2026 | From $358 Last seen: 6 hours ago |
*Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.