# Who flies St. Louis → Atlanta nonstop?

**3 airlines fly St. Louis → Atlanta nonstop: Delta Air Lines, Frontier Airlines and Southwest Airlines.**

| Airline | Routes | Book direct |
|---|---|---|
| Delta Air Lines | St. Louis Lambert (STL) → Hartsfield–Jackson Atlanta (ATL) | https://www.delta.com/ |
| Frontier Airlines | St. Louis Lambert (STL) → Hartsfield–Jackson Atlanta (ATL) | https://www.flyfrontier.com/ |
| Southwest Airlines | St. Louis Lambert (STL) → Hartsfield–Jackson Atlanta (ATL) | https://www.southwest.com/ |

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Compare fares for STL-ATL: [Trip.com](https://www.trip.com/flights/st-louis-to-atlanta/tickets-STL-ATL/?allianceid=1094387&sid=2209817&trip_sub1=c4c6f3cbcbb845d69061b1005-713359) · [Aviasales](https://www.aviasales.com/search/STL0911ATL1?marker=713359). Affiliate links (Trip.com, Aviasales): picktheflight may earn a commission. It never changes the price or which airlines are listed.

On picktheflight: https://picktheflight.com/?from=STL&to=ATL · JSON: https://picktheflight.com/intents/STL/ATL

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Data built 2026-10-12 from airline schedule tables on Wikipedia ("Airlines and destinations"), matched by exact airport article; airline booking sites from Wikidata. Schedules change. Confirm the flight on the airline's own site before booking.