Flight MQ4321
Envoy Air flight MQ4321
Looking for MQ4321 in the air…
Chicago (ORD) to Waterloo (ALO)
Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 72 minutes. It was cancelled 4.9% of the time.
- On-time arrivals
- 68.7%
- Less than 15 minutes late
- Cancelled
- 4.9%
- Of scheduled flights
- Average delay when late
- 72 min
- Flights arriving 15+ minutes late
- Flights tracked
- 267
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 40%
- Extreme weather 25%
- Air traffic control & airport 19%
- Airline (crew, maintenance, cleaning) 16%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Madison (MSN)
Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 43 minutes. It was cancelled 7.1% of the time.
- On-time arrivals
- 76.9%
- Less than 15 minutes late
- Cancelled
- 7.1%
- Of scheduled flights
- Average delay when late
- 43 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 47%
- Airline (crew, maintenance, cleaning) 43%
- Extreme weather 10%
- Air traffic control & airport 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 70.4% | 27 |
| October 2025 | 80.0% | 30 |
| November 2025 | 76.0% | 29 |
| December 2025 | 52.0% | 29 |
| January 2026 | 53.3% | 30 |
| February 2026 | 89.3% | 28 |
| March 2026 | 67.9% | 31 |
| April 2026 | 44.4% | 30 |
| May 2026 | 80.0% | 31 |
| June 2026 | 77.8% | 29 |
| July 2026 | 100.0% | 1 |
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