Flight OddsDL978 DTW → BUF
Delta Air Lines · Detroit, MI to Buffalo, NY · 115 flights observed, 2026-03-08 to 2026-06-30 · 241 mi
DL978 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
79%
Median delay
-4 min
90th percentile
+53 min
Cancellation rate
1%
How often is DL978 on time?
Across 115 flights on DTW → BUF from 2026-03-08 to 2026-06-30, DL978 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +53 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 90 | 79% |
| 16-30 min | 9 | 8% |
| 31-60 min | 6 | 5% |
| 61-120 min | 4 | 4% |
| 2+ hrs | 5 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 24 | 92% | +4 min |
| 2026-04 | 30 | 97% | -13 min |
| 2026-05 | 31 | 58% | +20 min |
| 2026-06 | 29 | 72% | +51 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 50% |
| Tue | 17 | 82% |
| Wed | 16 | 88% |
| Thu | 16 | 88% |
| Fri | 16 | 69% |
| Sat | 16 | 88% |
| Sun | 17 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…