Route
DEN → ATW
Denver International Airport Appleton International Airport
883 miles
Return route ATW → DEN →
How punctual is this route?
- On-time arrivals
- 69.6%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 63 min
- Flights arriving 15+ minutes late
- Flights tracked
- 410
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 40%
- Air traffic control & airport 29%
- Airline (crew, maintenance, cleaning) 24%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 60.5% | 38 |
| October 2025 | 76.9% | 39 |
| November 2025 | 78.6% | 29 |
| December 2025 | 77.4% | 31 |
| January 2026 | 67.7% | 31 |
| February 2026 | 75.0% | 28 |
| March 2026 | 85.2% | 31 |
| April 2026 | 70.0% | 30 |
| May 2026 | 67.6% | 34 |
| June 2026 | 64.1% | 39 |
| July 2026 | 52.5% | 40 |
| August 2026 | 69.2% | 40 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 261 | 74.2% | 1.1% | 51 min |
| United Airlines | 103 | 60.8% | 1.0% | 67 min |
| Allegiant Air | 46 | 63.0% | 0.0% | 103 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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