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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 31, 2026
From
$53
Last seen: 2 hours ago
One-way
Discount Den Basic Fare
Orlando, FL (MCO)To
St. Louis, MO (STL)Departing Oct 12, 2026
From
$66
Last seen: 11 hours ago
One-way
Discount Den Basic Fare
Las Vegas, NV (LAS)To
St. Louis, MO (STL)Departing Jul 22, 2026
From
$54
Last seen: 12 hours ago
One-way
Discount Den Basic Fare
Atlanta, GA (ATL)To
St. Louis, MO (STL)Departing Oct 12, 2026
From
$33
Last seen: 10 hours ago
One-way
Discount Den Basic Fare
Dallas, TX (DFW)To
St. Louis, MO (STL)Departing Aug 18, 2026
From
$40
Last seen: 10 hours ago
One-way
Discount Den Basic Fare
Phoenix, AZ (PHX)To
St. Louis, MO (STL)Departing Jul 1, 2026
From
$51
Last seen: 9 hours ago
One-way
Discount Den Basic Fare
Tampa, FL (TPA)To
St. Louis, MO (STL)Departing Aug 4, 2026
From
$66
Last seen: 8 hours ago
One-way
Discount Den Basic Fare
Cancun, MX (CUN)To
St. Louis, MO (STL)Departing Aug 11, 2026
From
$209
Last seen: 10 hours ago
One-way
Discount Den Basic Fare
Fort Lauderdale, FL (FLL)To
St. Louis, MO (STL)Departing Jul 28, 2026
From
$97
Last seen: 7 hours ago
One-way
Discount Den Basic Fare
Punta Cana, Dominican Republic (PUJ)To
St. Louis, MO (STL)Departing Jul 4, 2026
From
$288
Last seen: 5 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 Aug 31, 2026 | From $53 Last seen: 2 hours ago |
| Orlando, FL (MCO) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Oct 12, 2026 | From $66 Last seen: 11 hours ago |
| Las Vegas, NV (LAS) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Jul 22, 2026 | From $54 Last seen: 12 hours ago |
| Atlanta, GA (ATL) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Oct 12, 2026 | From $33 Last seen: 10 hours ago |
| Dallas, TX (DFW) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Aug 18, 2026 | From $40 Last seen: 10 hours ago |
| Phoenix, AZ (PHX) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Aug 11, 2026 | From $72 Last seen: 10 hours ago |
| Tampa, FL (TPA) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Aug 4, 2026 | From $66 Last seen: 8 hours ago |
| Cancun, MX (CUN) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Aug 11, 2026 | From $209 Last seen: 10 hours ago |
| Fort Lauderdale, FL (FLL) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Jul 28, 2026 | From $97 Last seen: 7 hours ago |
| Punta Cana, Dominican Republic (PUJ) | St. Louis, MO (STL) | One-way / Discount Den Basic Fare | Departing Jul 11, 2026 | From $302 Last seen: 8 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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