MQ4251
MQ4251 (Envoy Air) is a multi-stop service on 9 routes, busiest Tallahassee to Dallas-Fort Worth. Of 496 departures recorded from October 2024 to May 2026, 87.2% left on time, according to the US BTS.
- On-time departures87.2%of 496 flights
- Average delay9.8 min
- May 202619▲ 375.0%vs May 2025
- Cancelled1.0%
- Legs flown under this number9
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 | 31 | 31 | 0.0% |
| February | 28 | 11 | ▼ 60.7% |
| March | 31 | 48 | ▲ 54.8% |
| April | 30 | 36 | ▲ 20.0% |
| May | 4 | 19 | ▲ 375.0% |
| June | 25 | – | – |
| July | 30 | – | – |
| August | 9 | – | – |
| September | 25 | – | – |
| October | 31 | – | in progress |
| November | 11 | – | – |
| December | 15 | – | – |
| Year to date (Jan–May) | 124 | 145 | ▲ 16.9% |
according to the US BTS · October 2024 → May 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 | 85.7% | 90.0% | ▲ 5.0% |
| February | 92.9% | 100.0% | ▲ 7.7% |
| March | 87.1% | 85.4% | ▼ 1.9% |
| April | 80.0% | 88.9% | ▲ 11.1% |
| May | 100.0% | 73.7% | ▼ 26.3% |
| June | 83.3% | – | – |
| July | 83.3% | – | – |
| August | 100.0% | – | – |
| September | 100.0% | – | – |
| October | 93.6% | – | in progress |
| November | 90.9% | – | – |
| December | 86.7% | – | – |
| Year-to-date average (Jan–May) | 89.1% | 87.6% | ▼ 1.7% |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 1 | ▼ 66.7% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–May) | 3 | 1 | ▼ 66.7% |
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 99.0% 491
- Cancelled 1.0% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 19, 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 |
|---|---|---|---|---|
| TLH DFW Tallahassee International Airport – Dallas Fort Worth International Airport | 1,231 | 11.0 min | 86.9% | 248 |
| BWI ORD Baltimore/Washington International Thurgood Marshall Airport – Chicago O'Hare International Airport | 998 | 3.6 min | 90.5% | 117 |
| MIA JAX Miami International Airport – Jacksonville International Airport | 540 | 6.9 min | 81.4% | 43 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 31 | 31 | 77.4% | 0 |
| January 2025 | 31 | 28 | 85.7% | 3 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 80.0% | 0 |
| May 2025 | 4 | 4 | 100.0% | 0 |
| June 2025 | 25 | 24 | 83.3% | 1 |
| July 2025 | 30 | 30 | 83.3% | 0 |
| August 2025 | 9 | 9 | 100.0% | 0 |
| September 2025 | 25 | 25 | 100.0% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 11 | 11 | 90.9% | 0 |
| December 2025 | 15 | 15 | 86.7% | 0 |
| January 2026 | 31 | 30 | 90.0% | 1 |
| February 2026 | 11 | 11 | 100.0% | 0 |
| March 2026 | 48 | 48 | 85.4% | 0 |
| April 2026 | 36 | 36 | 88.9% | 0 |
| May 2026 | 19 | 19 | 73.7% | 0 |