Flight OddsDL543 ATL → STL
Delta Air Lines · Atlanta, GA to St. Louis, MO · 36 flights observed, 2026-03-08 to 2026-04-12 · 484 mi
DL543 covers more than one route in the data window — the stats below are for ATL → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-4 min
90th percentile
+28 min
Cancellation rate
3%
How often is DL543 on time?
Across 36 flights on ATL → STL from 2026-03-08 to 2026-04-12, DL543 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +28 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 29 | 83% |
| 16-30 min | 3 | 9% |
| 31-60 min | 2 | 6% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 24 | 83% | +7 min |
| 2026-04 | 11 | 82% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 5 | 80% |
| Wed | 5 | 100% |
| Thu | 5 | 100% |
| Fri | 5 | 100% |
| Sat | 5 | 60% |
| Sun | 5 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…