Frontier: Atlanta to St. Louis for US$52 Round Trip, 68% Below Usual
Frontier has nonstop economy fares from Atlanta to St. Louis starting at US$52 round trip for November 2–11, 2026.
Frontier’s nonstop Atlanta (ATL)–St. Louis (STL) fare starts at US$52 round trip in economy, compared with a usual price of about US$164 for this trip.
The example dates are November 2–11, 2026, a nine-night stay; other date combinations may also be available. The listed flight time is 1 hour 53 minutes.
In St. Louis, visit the Gateway Arch, explore the Mississippi River waterfront and catch blues in Soulard’s clubs.
Prices can move quickly. Book directly with Frontier or through the provided link.
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