Flight OddsDL1231 LGA → DTW
Delta Air Lines · New York, NY to Detroit, MI · 365 flights observed, 2025-07-01 to 2026-06-30 · 502 mi
On-time arrival
97%
Median delay
-13 min
90th percentile
+1 min
Cancellation rate
5%
How often is DL1231 on time?
Across 365 flights on LGA → DTW from 2025-07-01 to 2026-06-30, DL1231 arrived within 15 minutes of schedule 97% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +1 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 | 333 | 97% |
| 16-30 min | 3 | 1% |
| 31-60 min | 4 | 1% |
| 61-120 min | 4 | 1% |
| 2+ hrs | 1 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 100% | -8 min |
| 2025-08 | 31 | 97% | -5 min |
| 2025-09 | 30 | 100% | -11 min |
| 2025-10 | 31 | 97% | -13 min |
| 2025-11 | 30 | 97% | -10 min |
| 2025-12 | 24 | 75% | +1 min |
| 2026-01 | 29 | 93% | -15 min |
| 2026-02 | 26 | 96% | -17 min |
| 2026-03 | 24 | 100% | -17 min |
| 2026-04 | 30 | 100% | -17 min |
| 2026-05 | 31 | 100% | -12 min |
| 2026-06 | 30 | 100% | -13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 46 | 96% |
| Tue | 48 | 98% |
| Wed | 52 | 98% |
| Thu | 50 | 98% |
| Fri | 52 | 96% |
| Sat | 48 | 98% |
| Sun | 49 | 92% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…