Flight OddsUA1978 JAC → DEN
United Airlines · Jackson, WY to Denver, CO · 184 flights observed, 2025-08-19 to 2026-06-30 · 406 mi
UA1978 covers more than one route in the data window — the stats below are for JAC → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-12 min
90th percentile
+23 min
Cancellation rate
2%
How often is UA1978 on time?
Across 184 flights on JAC → DEN from 2025-08-19 to 2026-06-30, UA1978 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +23 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 156 | 87% |
| 16-30 min | 9 | 5% |
| 31-60 min | 8 | 4% |
| 61-120 min | 3 | 2% |
| 2+ hrs | 4 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 12 | 42% | +60 min |
| 2025-09 | 7 | 86% | +4 min |
| 2025-10 | 24 | 71% | +16 min |
| 2026-02 | 17 | 82% | +29 min |
| 2026-03 | 30 | 97% | -22 min |
| 2026-04 | 30 | 97% | -14 min |
| 2026-05 | 31 | 97% | -18 min |
| 2026-06 | 29 | 90% | -3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 25 | 84% |
| Tue | 25 | 84% |
| Wed | 25 | 96% |
| Thu | 26 | 92% |
| Fri | 27 | 89% |
| Sat | 26 | 81% |
| Sun | 26 | 81% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…