Flight OddsDL4991 LGA → STL
Delta Air Lines · New York, NY to St. Louis, MO · 98 flights observed, 2025-09-11 to 2025-12-18 · 888 mi
DL4991 covers more than one route in the data window — the stats below are for LGA → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
-4 min
90th percentile
+71 min
Cancellation rate
2%
How often is DL4991 on time?
Across 98 flights on LGA → STL from 2025-09-11 to 2025-12-18, DL4991 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +71 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 67 | 71% |
| 16-30 min | 4 | 4% |
| 31-60 min | 10 | 11% |
| 61-120 min | 10 | 11% |
| 2+ hrs | 4 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 20 | 80% | -6 min |
| 2025-10 | 29 | 76% | +11 min |
| 2025-11 | 29 | 66% | +36 min |
| 2025-12 | 17 | 59% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 57% |
| Tue | 14 | 64% |
| Wed | 13 | 85% |
| Thu | 13 | 54% |
| Fri | 14 | 64% |
| Sat | 14 | 93% |
| Sun | 13 | 77% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…