Flight OddsDL2139 DTW → BUF
Delta Air Lines · Detroit, MI to Buffalo, NY · 21 flights observed, 2026-04-13 to 2026-05-06 · 241 mi
DL2139 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
80%
Median delay
-1 min
90th percentile
+54 min
Cancellation rate
5%
How often is DL2139 on time?
Across 21 flights on DTW → BUF from 2026-04-13 to 2026-05-06, DL2139 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +54 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 16 | 80% |
| 16-30 min | 0 | 0% |
| 31-60 min | 2 | 10% |
| 61-120 min | 1 | 5% |
| 2+ hrs | 1 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 16 | 81% | +10 min |
| 2026-05 | 4 | 75% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 4 | 50% |
| Wed | 4 | 75% |
| Thu | 3 | 100% |
| Fri | 3 | 67% |
| Sat | No data | — |
| Sun | 2 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…