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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Best Flight Deals from St. Louis, MO with Frontier
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To
St. Louis, MO (STL)Las Vegas, NV (LAS)One-way
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Discount Den Basic Fare		Departing Sep 26, 2026

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$49

Last seen: 5 hours ago

St. Louis, MO (STL)Orlando, FL (MCO)One-way
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Discount Den Basic Fare		Departing Nov 9, 2026

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$39

Last seen: 16 hours ago

St. Louis, MO (STL)Denver, CO (DEN)One-way
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Discount Den Basic Fare		Departing Sep 26, 2026

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$48

Last seen: 4 hours ago

St. Louis, MO (STL)Atlanta, GA (ATL)One-way
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Discount Den Basic Fare		Departing Oct 19, 2026

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$22

Last seen: 4 hours ago

St. Louis, MO (STL)Cancun, MX (CUN)One-way
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Discount Den Basic Fare		Departing Oct 24, 2026

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$253

Last seen: 15 hours ago

St. Louis, MO (STL)Dallas, TX (DFW)One-way
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Discount Den Basic Fare		Departing Oct 30, 2026

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$35

Last seen: 1 hour ago

St. Louis, MO (STL)Punta Cana, Dominican Republic (PUJ)One-way
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Discount Den Basic Fare		Departing Dec 12, 2026

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$274

Last seen: 1 hour 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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