DL4171 DTW → MDT
Delta Air Lines · Detroit, MI to Harrisburg, PA · 67 flights observed, 2026-01-05 to 2026-06-05 · 371 mi
DL4171 covers more than one route in the data window — the stats below are for DTW → MDT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
66%
Median delay
-2 min
90th percentile
+129 min
Cancellation rate
3%
How often is DL4171 on time?
Across 67 flights on DTW → MDT from 2026-01-05 to 2026-06-05, DL4171 arrived within 15 minutes of schedule 66% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +129 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 | 43 | 66% |
| 16-30 min | 2 | 3% |
| 31-60 min | 7 | 11% |
| 61-120 min | 5 | 8% |
| 2+ hrs | 8 | 12% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 25 | 64% | +42 min |
| 2026-02 | 10 | 40% | +180 min |
| 2026-05 | 25 | 72% | +15 min |
| 2026-06 | 5 | 100% | -9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 60% |
| Tue | 10 | 60% |
| Wed | 9 | 78% |
| Thu | 10 | 50% |
| Fri | 10 | 80% |
| Sat | 8 | 88% |
| Sun | 8 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…