MQ4331
MQ4331 (Envoy Air) is a multi-stop service on 3 routes, busiest Chicago to Springfield. Of 358 departures recorded from August 2025 to July 2026, 78.6% left on time, according to the US BTS.
- On-time departures78.6%of 358 flights
- Average delay13.6 min
- July 202631
- Cancelled3.4%
- Legs flown under this number3
Recorded departures by month
Short series — MQ4331 has only 11 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 31 | – |
| February | – | 28 | – |
| March | – | 31 | – |
| April | – | 30 | – |
| May | – | 31 | – |
| June | – | 30 | – |
| July | – | 31 | – |
| August | 51 | – | – |
| September | 59 | – | – |
| October | 10 | – | in progress |
| November | – | – | – |
| December | 26 | – | – |
according to the US BTS · August 2025 → July 2026
On-time departures by month
Short series — MQ4331 has only 11 months so far. Enough to show the level now, not enough to read a trend.
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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 64.5% | – |
| February | – | 78.6% | – |
| March | – | 81.5% | – |
| April | – | 61.5% | – |
| May | – | 71.0% | – |
| June | – | 69.0% | – |
| July | – | 69.0% | – |
| August | 92.2% | – | – |
| September | 100.0% | – | – |
| October | 70.0% | – | in progress |
| November | – | – | – |
| December | 68.0% | – | – |
according to the US BTS · August 2025 → July 2026
Average departure delay by month
Short series — MQ4331 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · August 2025 → July 2026
Cancelled departures by month
Short series — MQ4331 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | – | 4 | – |
| April | – | 4 | – |
| May | – | 0 | – |
| June | – | 1 | – |
| July | – | 2 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | 1 | – | – |
according to the US BTS · August 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 96.6% 346
- Cancelled 3.4% 12
Share of all recorded flights in the period, all legs. · Aug 6, 2025 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD SPI Chicago O'Hare International Airport – Abraham Lincoln Capital Airport | 280 | 20.8 min | 70.4% | 238 |
| SGF DFW Springfield Branson National Airport – Dallas Fort Worth International Airport | 587 | 2.6 min | 93.4% | 61 |
| DFW SGF Dallas Fort Worth International Airport – Springfield Branson National Airport | 587 | -2.7 min | 94.9% | 59 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| August 2025 | 51 | 51 | 92.2% | 0 |
| September 2025 | 59 | 59 | 100.0% | 0 |
| October 2025 | 10 | 10 | 70.0% | 0 |
| December 2025 | 26 | 25 | 68.0% | 1 |
| January 2026 | 31 | 31 | 64.5% | 0 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 31 | 27 | 81.5% | 4 |
| April 2026 | 30 | 26 | 61.5% | 4 |
| May 2026 | 31 | 31 | 71.0% | 0 |
| June 2026 | 30 | 29 | 69.0% | 1 |
| July 2026 | 31 | 29 | 69.0% | 2 |