Delta Air LinesDL100% on time
Flights DL1400 08:40 daily · DL566 11:05 daily · DL2700 varies daily · DL1799 15:34 daily
live
Direct flights from Atlanta (ATL) to St Louis (STL): 18 nonstop departures observed each week across 3 airlines. 95% of the last 21 operated flights arrived within 15 minutes of schedule. The median arrival is 20 minutes early. No cancellations were recorded across the 21 tracked flights. The nonstop covers 779 km, an estimated 1 hour 30 minutes in the air. Measured by Pro Flight Search from live flight boards at Atlanta and St Louis. Updated 8 September 2026 at 20:18 UTC.
ATL
Atlanta
smooth · +10
STL
St Louis
smooth · +0
779 km · ~1h 30m est.
Runs reliable · 3 airlines · 18x weekly · nonstop
95% on time
of the last 21 operated ATL → STL flights arrived within 15 minutes
Median arrival delay is −20 min. 0 of 21 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−20 minacross the last 21 operated legs
Flight time~1h 30mestimated from route distance
Weekly departures18x3 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 21
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta Air LinesFrontier AirlinesSouthwest Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomes09-07AA1349dep +390 → arr+453
Actual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at STL: 39% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Atlanta to St Louis route actually runs
Pro Flight Search records official board updates for nonstop ATL to STL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Atlanta (ATL) to St Louis (STL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ATL-STL
ATL to STL questions
Is ATL–STL running on time right now?
Smooth skies ahead. The departure side at ATL is the weaker end, route health score 93/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on ATL–STL?
Operators schedule morning departures around 08:40 and evening departures around 17:10 from ATL. Earlier flights typically land before destination-airport delays accumulate later in the day; check the STL delay card to confirm conditions when you'd arrive.
How long is the flight from ATL to STL?
Great-circle distance is 779 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 85–97 min gate-to-gate on this route.
How often does ATL–STL fly?
3 carriers operate this route, around 65 flights a week between them. Compare carrier days and times in the airline list above.
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