Flight OddsDL2021 MIA → SLC
Delta Air Lines · Miami, FL to Salt Lake City, UT · 364 flights observed, 2025-07-01 to 2026-06-30 · 2,088 mi
On-time arrival
77%
Median delay
-1 min
90th percentile
+40 min
Cancellation rate
1%
How often is DL2021 on time?
Across 364 flights on MIA → SLC from 2025-07-01 to 2026-06-30, DL2021 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +40 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 280 | 77% |
| 16-30 min | 35 | 10% |
| 31-60 min | 28 | 8% |
| 61-120 min | 12 | 3% |
| 2+ hrs | 7 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 52% | +25 min |
| 2025-08 | 31 | 71% | +18 min |
| 2025-09 | 30 | 80% | +2 min |
| 2025-10 | 30 | 80% | +4 min |
| 2025-11 | 30 | 63% | +25 min |
| 2025-12 | 31 | 61% | +18 min |
| 2026-01 | 31 | 81% | +0 min |
| 2026-02 | 28 | 86% | +1 min |
| 2026-03 | 29 | 93% | -10 min |
| 2026-04 | 30 | 80% | +5 min |
| 2026-05 | 31 | 87% | -4 min |
| 2026-06 | 30 | 97% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 75% |
| Tue | 52 | 87% |
| Wed | 52 | 85% |
| Thu | 52 | 73% |
| Fri | 51 | 76% |
| Sat | 52 | 79% |
| Sun | 52 | 67% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…