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Flights from St. Louis, MO
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Traveling From St. Louis, MO
Travel to 100 destinations across the United States, and 5 international destinations when you fly from St. Louis with Frontier Airlines! Sign up with our Discount Den℠today to save on every flight. It’s the way to go to save a lot of dough!
Departing from St. Louis Airport
Lambert-St. Louis International Airport (STL) is located 23 km northwest of downtown. This medium-sized airport is bustling but easy to navigate. Shop, eat, and use the free Wi-Fi. The kids will enjoy the historic aircraft that hang from the ceiling.
Leaving St. Louis
To avoid heavy traffic, take the Metrolink from downtown. Many hotels provide airport drop-off service. Taxis and airport shuttles are also available. Save time and money on flights from St. Louis when you book with Frontier Airlines. Add THE WORKSâ„ to get free checked baggage, priority boarding, and refundable tickets for the best value in the industry!
Best Flight Deals from St. Louis, MO with Frontier
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From | To | |||
|---|---|---|---|---|
| St. Louis, MO (STL) | Orlando, FL (MCO) | One-way / Discount Den Basic Fare | Departing Mar 18, 2026 | From $33 Last seen: 42 mins ago |
| St. Louis, MO (STL) | Las Vegas, NV (LAS) | One-way / Discount Den Basic Fare | Departing Apr 18, 2026 | From $33 Last seen: 39 mins ago |
| St. Louis, MO (STL) | Cancun, MX (CUN) | One-way / Discount Den Basic Fare | Departing Mar 31, 2026 | From $93 Last seen: 6 hours ago |
| St. Louis, MO (STL) | Denver, CO (DEN) | One-way / Discount Den Basic Fare | Departing May 9, 2026 | From $19 Last seen: 3 hours ago |
| St. Louis, MO (STL) | Atlanta, GA (ATL) | One-way / Discount Den Basic Fare | Departing Mar 31, 2026 | From $19 Last seen: 3 hours ago |
| St. Louis, MO (STL) | Tampa, FL (TPA) | One-way / Discount Den Basic Fare | Departing May 9, 2026 | From $33 Last seen: 4 hours ago |
| St. Louis, MO (STL) | Punta Cana, Dominican Republic (PUJ) | One-way / Discount Den Basic Fare | Departing Mar 28, 2026 | From $149 Last seen: 5 hours ago |
| St. Louis, MO (STL) | Fort Lauderdale, FL (FLL) | One-way / Discount Den Basic Fare | Departing Mar 18, 2026 | From $33 Last seen: 7 hours ago |
| St. Louis, MO (STL) | Dallas, TX (DFW) | One-way / Discount Den Basic Fare | Departing Mar 24, 2026 | From $33 Last seen: 5 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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