Flight OddsDL1663 DEN → SLC
Delta Air Lines · Denver, CO to Salt Lake City, UT · 71 flights observed, 2025-10-06 to 2025-12-18 · 391 mi
DL1663 covers more than one route in the data window — the stats below are for DEN → SLC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-6 min
90th percentile
+37 min
Cancellation rate
0%
How often is DL1663 on time?
Across 71 flights on DEN → SLC from 2025-10-06 to 2025-12-18, DL1663 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +37 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 | 56 | 79% |
| 16-30 min | 7 | 10% |
| 31-60 min | 4 | 6% |
| 61-120 min | 3 | 4% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 24 | 79% | +7 min |
| 2025-11 | 29 | 86% | -6 min |
| 2025-12 | 18 | 67% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 91% |
| Tue | 11 | 91% |
| Wed | 11 | 82% |
| Thu | 11 | 82% |
| Fri | 8 | 75% |
| Sat | 10 | 50% |
| Sun | 9 | 78% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…