Flight OddsDL2666 SLC → STL
Delta Air Lines · Salt Lake City, UT to St. Louis, MO · 355 flights observed, 2025-07-01 to 2026-06-30 · 1,156 mi
On-time arrival
80%
Median delay
-8 min
90th percentile
+50 min
Cancellation rate
0%
How often is DL2666 on time?
Across 355 flights on SLC → STL from 2025-07-01 to 2026-06-30, DL2666 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +50 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 | 282 | 80% |
| 16-30 min | 20 | 6% |
| 31-60 min | 21 | 6% |
| 61-120 min | 23 | 6% |
| 2+ hrs | 8 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 71% | +7 min |
| 2025-08 | 31 | 74% | +5 min |
| 2025-09 | 30 | 73% | +6 min |
| 2025-10 | 27 | 70% | +18 min |
| 2025-11 | 26 | 81% | -1 min |
| 2025-12 | 28 | 71% | +22 min |
| 2026-01 | 31 | 90% | +1 min |
| 2026-02 | 28 | 89% | -3 min |
| 2026-03 | 31 | 90% | -4 min |
| 2026-04 | 30 | 80% | +6 min |
| 2026-05 | 31 | 77% | +4 min |
| 2026-06 | 30 | 87% | -4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 88% |
| Tue | 53 | 81% |
| Wed | 52 | 87% |
| Thu | 52 | 77% |
| Fri | 51 | 78% |
| Sat | 42 | 79% |
| Sun | 52 | 67% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…