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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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Orlando, FL (MCO)To
St. Louis, MO (STL)Departing Feb 14, 2026
From
$19
Last seen: 6 hours ago
One-way
Discount Den Basic Fare
Denver, CO (DEN)To
St. Louis, MO (STL)Departing Mar 11, 2026
From
$19
Last seen: 7 hours ago
One-way
Discount Den Basic Fare
Las Vegas, NV (LAS)To
St. Louis, MO (STL)Departing Feb 14, 2026
From
$19
Last seen: 1 hour ago
One-way
Discount Den Basic Fare
Atlanta, GA (ATL)To
St. Louis, MO (STL)Departing Feb 23, 2026
From
$19
Last seen: 5 hours ago
One-way
Discount Den Basic Fare
Tampa, FL (TPA)To
St. Louis, MO (STL)Departing Feb 7, 2026
From
$19
Last seen: 5 hours ago
One-way
Discount Den Basic Fare
Dallas, TX (DFW)To
St. Louis, MO (STL)Departing Feb 24, 2026
From
$33
Last seen: 13 hours ago
One-way
Discount Den Basic Fare
Cancun, MX (CUN)To
St. Louis, MO (STL)Departing Feb 14, 2026
From
$121
Last seen: 6 hours ago
One-way
Discount Den Basic Fare
Punta Cana, Dominican Republic (PUJ)To
St. Louis, MO (STL)Departing May 9, 2026
From
$158
Last seen: 16 hours ago
One-way
Discount Den Basic Fare
Fort Lauderdale, FL (FLL)To
St. Louis, MO (STL)Departing Mar 24, 2026
From
$33
Last seen: 10 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 | |||
|---|---|---|---|---|
| Orlando, FL (MCO) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Feb 27, 2026 | From $19 Last seen: 1 hour ago |
| Denver, CO (DEN) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Mar 11, 2026 | From $19 Last seen: 7 hours ago |
| Las Vegas, NV (LAS) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Feb 28, 2026 | From $19 Last seen: 5 hours ago |
| Atlanta, GA (ATL) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Feb 27, 2026 | From $19 Last seen: 3 hours ago |
| Tampa, FL (TPA) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing May 9, 2026 | From $72 Last seen: 15 hours ago |
| Dallas, TX (DFW) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Apr 7, 2026 | From $43 Last seen: 13 hours ago |
| Cancun, MX (CUN) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Mar 6, 2026 | From $135 Last seen: 12 hours ago |
| Punta Cana, Dominican Republic (PUJ) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing May 9, 2026 | From $158 Last seen: 16 hours ago |
| Fort Lauderdale, FL (FLL) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Mar 18, 2026 | From $33 Last seen: 3 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®.
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