Best Time to Fly JAC to DEN: On-Time Stats by Hour & Airline
Jackson Hole → Denver International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 79.0% of Jackson (JAC) to Denver (DEN) flights arrived on time (1,631 scheduled flights). That is 1.4 points above the national average of 77.6%.
SkyWest Airlines was the most punctual of the 2 airlines on the route at 87.5%, while United Airlines trailed at 75.5%.
November has been the best month (87% on time) and Monday the weakest day of the week (76%).
1.4% of flights were cancelled, versus 1.8% nationally.
JAC to DEN on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 87.5% | 89 min | 2.7% | 478 |
| United Airlines | 75.5% | 85 min | 0.9% | 1,153 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly JAC to DEN
On-time arrival % by scheduled departure hour (local time), 3,263 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 83.0% | 1.5% | 729 |
| 10am–11am | 89.5% | 1.3% | 704 |
| 11am–12pm | Limited data | 24 | |
| 1pm–2pm | 77.3% | 0.4% | 254 |
| 2pm–3pm | 70.4% | 0.3% | 689 |
| 4pm–5pm | 67.7% | 1.0% | 684 |
| 5pm–6pm | 76.5% | 1.4% | 139 |
| 6pm–7pm | 71.0% | 5.0% | 40 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on JAC to DEN
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 82.0% | +1.4 pts | 0.0% | 50 |
| Christmas & New Year (Dec 20 - Jan 3) | 74.5% | -6.1 pts | 2.1% | 144 |
| Summer peak (Jun 15 - Aug 15) | 66.2% | -14.4 pts | 1.1% | 618 |
| All other days | 80.6% | — | 1.0% | 2,451 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).