MQ4219
MQ4219 (Envoy Air) is a multi-stop service on 7 routes, busiest Chicago to Charleston. Of 378 departures recorded from March 2025 to July 2026, 81.8% left on time, according to the US BTS.
- On-time departures81.8%of 378 flights
- Average delay8.9 min
- July 202631▲ 10.7%vs July 2025
- Cancelled2.4%
- Legs flown under this number7
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 1 | – |
| February | – | 2 | – |
| March | 10 | 5 | ▼ 50.0% |
| April | 26 | 49 | ▲ 88.5% |
| May | 4 | 51 | ▲ 1,175.0% |
| June | 26 | 30 | ▲ 15.4% |
| July | 28 | 31 | ▲ 10.7% |
| August | 20 | – | – |
| September | 18 | – | – |
| October | 29 | – | in progress |
| November | 29 | – | – |
| December | 19 | – | – |
according to the US BTS · March 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 100.0% | – |
| February | – | 100.0% | – |
| March | 90.0% | 80.0% | ▼ 11.1% |
| April | 87.5% | 91.8% | ▲ 5.0% |
| May | 100.0% | 88.0% | ▼ 12.0% |
| June | 65.4% | 75.9% | ▲ 16.0% |
| July | 51.9% | 69.0% | ▲ 33.0% |
| August | 84.2% | – | – |
| September | 88.9% | – | – |
| October | 89.7% | – | in progress |
| November | 89.3% | – | – |
| December | 84.2% | – | – |
according to the US BTS · March 2025 → July 2026
Average departure delay by month
according to the US BTS · March 2025 → July 2026
Cancelled departures by month
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | 2 | 0 | ▼ 100.0% |
| May | 0 | 1 | – |
| June | 0 | 1 | – |
| July | 1 | 2 | ▲ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
according to the US BTS · March 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 97.6% 369
- Cancelled 2.4% 9
Share of all recorded flights in the period, all legs. · Mar 8, 2025 → Jul 31, 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 CHS Chicago O'Hare International Airport – Charleston International Airport | 1,224 | 3.8 min | 88.2% | 148 |
| ORD ROC Chicago O'Hare International Airport – Frederick Douglass Greater Rochester International Airport | 847 | 21.7 min | 65.9% | 131 |
| ICT DFW Wichita Dwight D. Eisenhower National Airport – Dallas Fort Worth International Airport | 530 | 1.8 min | 90.9% | 44 |
| DFW ICT Dallas Fort Worth International Airport – Wichita Dwight D. Eisenhower National Airport | 530 | -1.3 min | 93.2% | 44 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| March 2025 | 10 | 10 | 90.0% | 0 |
| April 2025 | 26 | 24 | 87.5% | 2 |
| May 2025 | 4 | 4 | 100.0% | 0 |
| June 2025 | 26 | 26 | 65.4% | 0 |
| July 2025 | 28 | 27 | 51.9% | 1 |
| August 2025 | 20 | 19 | 84.2% | 1 |
| September 2025 | 18 | 18 | 88.9% | 0 |
| October 2025 | 29 | 29 | 89.7% | 0 |
| November 2025 | 29 | 28 | 89.3% | 1 |
| December 2025 | 19 | 19 | 84.2% | 0 |
| January 2026 | 1 | 1 | 100.0% | 0 |
| February 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 5 | 5 | 80.0% | 0 |
| April 2026 | 49 | 49 | 91.8% | 0 |
| May 2026 | 51 | 50 | 88.0% | 1 |
| June 2026 | 30 | 29 | 75.9% | 1 |
| July 2026 | 31 | 29 | 69.0% | 2 |