Flight OddsDL4149 DTW → BUF
Delta Air Lines · Detroit, MI to Buffalo, NY · 79 flights observed, 2025-09-11 to 2025-12-19 · 241 mi
DL4149 covers more than one route in the data window — the stats below are for DTW → BUF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
70%
Median delay
-3 min
90th percentile
+84 min
Cancellation rate
3%
How often is DL4149 on time?
Across 79 flights on DTW → BUF from 2025-09-11 to 2025-12-19, DL4149 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +84 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 | 54 | 70% |
| 16-30 min | 6 | 8% |
| 31-60 min | 6 | 8% |
| 61-120 min | 7 | 9% |
| 2+ hrs | 4 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 17 | 82% | +0 min |
| 2025-10 | 22 | 86% | +3 min |
| 2025-11 | 20 | 70% | +20 min |
| 2025-12 | 18 | 39% | +69 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 64% |
| Tue | 12 | 83% |
| Wed | 12 | 67% |
| Thu | 13 | 92% |
| Fri | 12 | 75% |
| Sat | 5 | 40% |
| Sun | 12 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…