MQ4253
MQ4253 (Envoy Air) is a multi-stop service on 11 routes, busiest Chicago to Baltimore. Of 352 departures recorded from October 2024 to May 2026, 78.6% left on time, according to the US BTS.
- On-time departures78.6%of 352 flights
- Average delay13.1 min
- May 20261
- Cancelled4.6%
- Legs flown under this number11
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 6 | 31 | ▲ 416.7% |
| February | – | 11 | – |
| March | – | 48 | – |
| April | – | 12 | – |
| May | – | 1 | – |
| June | 26 | – | – |
| July | 30 | – | – |
| August | 57 | – | – |
| September | 32 | – | – |
| October | 31 | – | in progress |
| November | 3 | – | – |
| December | 29 | – | – |
according to the US BTS · October 2024 → May 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.3% | 92.9% | ▲ 11.4% |
| February | – | 80.0% | – |
| March | – | 76.7% | – |
| April | – | 70.0% | – |
| May | – | 100.0% | – |
| June | 72.0% | – | – |
| July | 53.6% | – | – |
| August | 83.6% | – | – |
| September | 78.1% | – | – |
| October | 71.0% | – | in progress |
| November | 100.0% | – | – |
| December | 93.1% | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 3 | – |
| February | – | 1 | – |
| March | – | 5 | – |
| April | – | 2 | – |
| May | – | 0 | – |
| June | 1 | – | – |
| July | 2 | – | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → May 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 95.5% 336
- Cancelled 4.5% 16
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 21, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD BWI Chicago O'Hare International Airport – Baltimore/Washington International Thurgood Marshall Airport | 998 | 17.5 min | 69.5% | 121 |
| ATW CLT Appleton International Airport – Charlotte Douglas International Airport | 1,195 | 7.9 min | 91.0% | 71 |
| ORD FAR Chicago O'Hare International Airport – Hector International Airport | 895 | 18.0 min | 78.6% | 30 |
| FAR ORD Hector International Airport – Chicago O'Hare International Airport | 895 | 8.3 min | 72.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 4 | 4 | 75.0% | 0 |
| December 2024 | 11 | 11 | 54.6% | 0 |
| January 2025 | 6 | 6 | 83.3% | 0 |
| June 2025 | 26 | 25 | 72.0% | 1 |
| July 2025 | 30 | 28 | 53.6% | 2 |
| August 2025 | 57 | 55 | 83.6% | 2 |
| September 2025 | 32 | 32 | 78.1% | 0 |
| October 2025 | 31 | 31 | 71.0% | 0 |
| November 2025 | 3 | 3 | 100.0% | 0 |
| December 2025 | 29 | 29 | 93.1% | 0 |
| January 2026 | 31 | 28 | 92.9% | 3 |
| February 2026 | 11 | 10 | 80.0% | 1 |
| March 2026 | 48 | 43 | 76.7% | 5 |
| April 2026 | 12 | 10 | 70.0% | 2 |
| May 2026 | 1 | 1 | 100.0% | 0 |