Flight OddsDL1503 DTW → SJU
Delta Air Lines · Detroit, MI to San Juan, PR · 17 flights observed, 2025-12-20 to 2026-01-05 · 1,930 mi
DL1503 covers more than one route in the data window — the stats below are for DTW → SJU, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
+9 min
90th percentile
+35 min
Cancellation rate
6%
How often is DL1503 on time?
Across 17 flights on DTW → SJU from 2025-12-20 to 2026-01-05, DL1503 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was +9 min, and the worst 10% of flights arrived +35 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 11 | 69% |
| 16-30 min | 3 | 19% |
| 31-60 min | 2 | 13% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 12 | 67% | +9 min |
| 2026-01 | 4 | 75% | +8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | 2 | 50% |
| Wed | 2 | 0% |
| Thu | 2 | 50% |
| Fri | 2 | 100% |
| Sat | 2 | 50% |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…