Flight OddsDL1521 SLC → JAC
Delta Air Lines · Salt Lake City, UT to Jackson, WY · 41 flights observed, 2025-09-11 to 2026-01-01 · 205 mi
DL1521 covers more than one route in the data window — the stats below are for SLC → JAC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-8 min
90th percentile
+27 min
Cancellation rate
0%
How often is DL1521 on time?
Across 41 flights on SLC → JAC from 2025-09-11 to 2026-01-01, DL1521 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +27 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 34 | 83% |
| 16-30 min | 3 | 7% |
| 31-60 min | 3 | 7% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 20 | 90% | -3 min |
| 2025-10 | 9 | 89% | -2 min |
| 2025-11 | 8 | 50% | +14 min |
| 2025-12 | 3 | 100% | -22 min |
| 2026-01 | 1 | 100% | -24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 5 | 100% |
| Wed | 7 | 57% |
| Thu | 8 | 75% |
| Fri | 6 | 100% |
| Sat | 6 | 83% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…