Denver (DEN) to Appleton (ATW): On-Time Performance
Data through July 2026
Denver (DEN) to Appleton (ATW) effectively runs on two schedules. In September 2024, 92% of arrivals were on time; in June 2025 that fell to 53% — a 40-point seasonal swing. Across the full period the route averages 73% on-time against a national 78%.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 0.9%
- Flights/day
- 1.1
- last 12 months
- Duration
- 2h 29m
- scheduled
- Distance
- 883 mi
Best airline from DEN to ATW
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 76% | 14 min | 0.8% | 709 |
| Allegiant Air | 61% | 44 min | 1.8% | 111 |
| United Airlines | 57% | 27 min | 0.0% | 72 |
Monthly on-time trend
Best time to fly from DEN to ATW
Aim for departures around 5 p.m. (74% on-time); avoid 8 p.m. departures (37%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 15 min |
| Tuesday | 76% | 14 min |
| Wednesday | 78% | 12 min |
| Thursday | 59% | 29 min |
| Friday | 70% | 17 min |
| Saturdaybest | 79% | 16 min |
| Sunday | 75% | 23 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft37%
- Airline operations24%
- National airspace system24%
- Weather10%
- Security5%
Frequently asked questions
- How often are flights from DEN to ATW delayed?
- 28% of DEN–ATW flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 18 minutes.
- Which airline is most reliable from DEN to ATW?
- SkyWest Airlines has the best on-time record on this route at 76%, based on 709 flights. 3 airlines flew DEN–ATW frequently enough to compare in this period.
- What is the best time of day to fly from DEN to ATW?
- Departures around 5 p.m. have the best record (74% on-time), while departures around 8 p.m. have the worst (37%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DEN to ATW?
- The scheduled DEN–ATW flight time averages 2h 29m over 883 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are DEN to ATW flights cancelled?
- 0.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from DEN to ATW?
- June 2025 was the roughest month in this dataset, with only 53% of arrivals on time. The best was September 2024 at 92%. If your dates are flexible, that 40-point gap is worth planning around.
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Based on 892 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.