Delta Air LinesDL
Flights DL8840 23:49 We
live
Direct flights from Cahokia/St Louis (CPS) to Atlanta (ATL): 1 nonstop departure observed each week across 1 airline. The median arrival is 6 minutes late. No cancellations were recorded across the 1 tracked flight. The nonstop covers 752 km, an estimated 1 hour 28 minutes in the air. Measured by Pro Flight Search from live flight boards at Cahokia/St Louis and Atlanta. Updated 10 September 2026 at 14:03 UTC.
CPS
Cahokia/St Louis
tracking
ATL
Atlanta
smooth · +0
752 km · ~1h 28m est.
Running clean · 1 airline · 1x weekly · nonstop
82 / 100
route health from live CPS and ATL delay boards
Median arrival delay is +6 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+6 minacross the last 1 operated legs
Flight time~1h 28mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta Air Lines
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 outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Cahokia/St Louis to Atlanta route actually runs
Pro Flight Search records official board updates for nonstop CPS to ATL 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 — Cahokia/St Louis (CPS) to Atlanta (ATL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/CPS-ATL
CPS to ATL questions
Is CPS–ATL running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 82/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from CPS to ATL?
Great-circle distance is 752 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 83–94 min gate-to-gate on this route.
How often does CPS–ATL fly?
Delta Air Lines runs the route with about 1 flight a week (wed). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at CPS and arrival-side delay at ATL, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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