MQ4091
MQ4091 (Envoy Air) is a multi-stop service on 14 routes, busiest Chicago to Syracuse. Of 464 departures recorded from May 2025 to July 2026, 86.7% left on time, according to the US BTS.
- On-time departures86.7%of 464 flights
- Average delay4.5 min
- July 202626▼ 13.3%vs July 2025
- Cancelled1.3%
- Legs flown under this number14
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 60 | – |
| February | – | 24 | – |
| March | – | 1 | – |
| April | – | 32 | – |
| May | 27 | 50 | ▲ 85.2% |
| June | 30 | 38 | ▲ 26.7% |
| July | 30 | 26 | ▼ 13.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 31 | – | – |
| December | 24 | – | – |
according to the US BTS · May 2025 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 87.5% | – |
| February | – | 87.5% | – |
| March | – | 100.0% | – |
| April | – | 96.9% | – |
| May | 88.5% | 80.0% | ▼ 9.6% |
| June | 86.7% | 86.8% | ▲ 0.2% |
| July | 83.3% | 76.9% | ▼ 7.7% |
| August | 90.0% | – | – |
| September | 90.0% | – | – |
| October | 83.3% | – | in progress |
| November | 90.3% | – | – |
| December | 87.5% | – | – |
according to the US BTS · May 2025 → July 2026
Average departure delay by month
according to the US BTS · May 2025 → July 2026
Cancelled departures by month
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 4 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · May 2025 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.7% 458
- Cancelled 1.3% 6
Share of all recorded flights in the period, all legs. · May 5, 2025 → Jul 30, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD SYR Chicago O'Hare International Airport – Syracuse Hancock International Airport | 974 | 4.8 min | 87.0% | 186 |
| MIA GSO Miami International Airport – Piedmont Triad International Airport | 1,146 | -0.3 min | 87.0% | 48 |
| GSO MIA Piedmont Triad International Airport – Miami International Airport | 1,146 | 6.6 min | 86.7% | 47 |
| PHX FAT Phoenix Sky Harbor International Airport – Fresno Yosemite International Airport | 793 | 7.6 min | 84.2% | 38 |
| FAT PHX Fresno Yosemite International Airport – Phoenix Sky Harbor International Airport | 793 | 11.8 min | 81.6% | 38 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| May 2025 | 27 | 26 | 88.5% | 1 |
| June 2025 | 30 | 30 | 86.7% | 0 |
| July 2025 | 30 | 30 | 83.3% | 0 |
| August 2025 | 31 | 30 | 90.0% | 1 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 30 | 30 | 83.3% | 0 |
| November 2025 | 31 | 31 | 90.3% | 0 |
| December 2025 | 24 | 24 | 87.5% | 0 |
| January 2026 | 60 | 56 | 87.5% | 4 |
| February 2026 | 24 | 24 | 87.5% | 0 |
| March 2026 | 1 | 1 | 100.0% | 0 |
| April 2026 | 32 | 32 | 96.9% | 0 |
| May 2026 | 50 | 50 | 80.0% | 0 |
| June 2026 | 38 | 38 | 86.8% | 0 |
| July 2026 | 26 | 26 | 76.9% | 0 |