Route
CID → DEN
The Eastern Iowa Airport Denver International Airport
692 miles
Return route DEN → CID →
How punctual is this route?
- On-time arrivals
- 78.8%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 101 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,154
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 46%
- Late-arriving aircraft 23%
- Air traffic control & airport 21%
- Extreme weather 11%
- 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 | 83.3% | 98 |
| October 2025 | 83.3% | 102 |
| November 2025 | 87.1% | 97 |
| December 2025 | 65.8% | 75 |
| January 2026 | 82.6% | 69 |
| February 2026 | 87.3% | 63 |
| March 2026 | 77.9% | 80 |
| April 2026 | 84.4% | 77 |
| May 2026 | 86.1% | 109 |
| June 2026 | 73.6% | 125 |
| July 2026 | 73.1% | 130 |
| August 2026 | 68.5% | 129 |
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 |
|---|---|---|---|---|
| United Airlines | 728 | 78.1% | 1.1% | 110 min |
| SkyWest Airlines | 262 | 77.8% | 0.4% | 90 min |
| Frontier Airlines | 164 | 83.3% | 1.2% | 71 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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