Best Time to Fly ATY to DEN: On-Time Stats by Hour & Airline
Watertown Regional → Denver International
Data through July 2026 · Last updated October 18, 2026
363 flights were scheduled from Watertown (ATY) to Denver (DEN) in the last 12 months, and 74.7% of those that flew arrived on time, 2.9 points below the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
March has been the best month (87% on time) and Wednesday the weakest day of the week (67%).
0.3% of flights were cancelled, versus 1.8% nationally.
ATY 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 | 74.7% | 118 min | 0.3% | 363 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATY to DEN
On-time arrival % by scheduled departure hour (local time), 363 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 11am–12pm | Limited data | 1 | |
| 2pm–3pm | Limited data | 1 | |
| 6pm–7pm | 74.8% | 0.3% | 360 |
| 11pm–12am | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ATY 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) | Limited data | 7 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 13 | ||
| Summer peak (Jun 15 - Aug 15) | 62.3% | -14.8 pts | 0.0% | 62 |
| All other days | 77.1% | — | 0.4% | 281 |
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).