Flight OddsDL4821 STL → MSP
Delta Air Lines · St. Louis, MO to Minneapolis, MN · 36 flights observed, 2025-07-01 to 2025-08-10 · 448 mi
DL4821 covers more than one route in the data window — the stats below are for STL → MSP, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
-6 min
90th percentile
+115 min
Cancellation rate
0%
How often is DL4821 on time?
Across 36 flights on STL → MSP from 2025-07-01 to 2025-08-10, DL4821 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +115 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 27 | 75% |
| 16-30 min | 2 | 6% |
| 31-60 min | 2 | 6% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 4 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 28 | 68% | +63 min |
| 2025-08 | 8 | 100% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 100% |
| Tue | 6 | 83% |
| Wed | 6 | 50% |
| Thu | 6 | 83% |
| Fri | 6 | 83% |
| Sat | 1 | 100% |
| Sun | 6 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…