Best Time to Fly DEN to WYS: On-Time Stats by Hour & Airline
Denver International → Yellowstone
Data through July 2026 · Last updated October 18, 2026
207 flights were scheduled from Denver (DEN) to West Yellowstone (WYS) in the last 12 months, and 79.4% of those that flew arrived on time, 1.8 points above the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
September has been the best month (93% on time) and Thursday the weakest day of the week (72%).
0.0% of flights were cancelled, versus 1.8% nationally.
DEN to WYS 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 | 79.4% | 58 min | 0.0% | 207 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to WYS
On-time arrival % by scheduled departure hour (local time), 326 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 26 | |
| 8am–9am | Limited data | 8 | |
| 11am–12pm | 79.5% | 0.0% | 253 |
| 12pm–1pm | Limited data | 6 | |
| 2pm–3pm | 77.4% | 0.0% | 33 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DEN to WYS
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Summer peak (Jun 15 - Aug 15) | 78.6% | -3.7 pts | 0.0% | 141 |
| All other days | 82.2% | — | 0.0% | 185 |
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).