MQ4277
MQ4277 (Envoy Air) is a multi-stop service on 4 routes, busiest Rapid City to Dallas-Fort Worth. Of 519 departures recorded from October 2024 to July 2026, 93.7% left on time, according to the US BTS.
- On-time departures93.7%of 519 flights
- Average delay3.2 min
- July 202627▼ 10.0%vs July 2025
- Cancelled1.7%
- Legs flown under this number4
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 29 | ▲ 16.0% |
| February | 12 | 16 | ▲ 33.3% |
| March | 2 | 7 | ▲ 250.0% |
| April | 30 | 24 | ▼ 20.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 29 | ▼ 3.3% |
| July | 30 | 27 | ▼ 10.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 9 | – | – |
| Year to date (Jan–Jul) | 160 | 163 | ▲ 1.9% |
according to the US BTS · October 2024 → 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 periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 90.0% | 96.3% | ▲ 7.0% |
| February | 91.7% | 100.0% | ▲ 9.1% |
| March | 100.0% | 100.0% | 0.0% |
| April | 90.0% | 91.7% | ▲ 1.9% |
| May | 100.0% | 96.8% | ▼ 3.2% |
| June | 96.7% | 86.2% | ▼ 10.8% |
| July | 100.0% | 100.0% | 0.0% |
| August | 93.6% | – | – |
| September | 96.7% | – | – |
| October | 100.0% | – | in progress |
| November | 92.9% | – | – |
| December | 77.8% | – | – |
| Year-to-date average (Jan–Jul) | 95.5% | 95.9% | ▲ 0.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 2 | ▼ 60.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 2 | ▼ 60.0% |
according to the US BTS · October 2024 → 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 98.3% 510
- Cancelled 1.7% 9
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| RAP DFW Rapid City Regional Airport – Dallas Fort Worth International Airport | 1,345 | 3.7 min | 95.2% | 351 |
| DFW MOB Dallas Fort Worth International Airport – Mobile Regional Airport | 866 | 2.5 min | 89.7% | 154 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 28 | 27 | 88.9% | 1 |
| December 2024 | 18 | 18 | 77.8% | 0 |
| January 2025 | 25 | 20 | 90.0% | 5 |
| February 2025 | 12 | 12 | 91.7% | 0 |
| March 2025 | 2 | 2 | 100.0% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 31 | 100.0% | 0 |
| June 2025 | 30 | 30 | 96.7% | 0 |
| July 2025 | 30 | 30 | 100.0% | 0 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 31 | 31 | 100.0% | 0 |
| November 2025 | 29 | 28 | 92.9% | 1 |
| December 2025 | 9 | 9 | 77.8% | 0 |
| January 2026 | 29 | 27 | 96.3% | 2 |
| February 2026 | 16 | 16 | 100.0% | 0 |
| March 2026 | 7 | 7 | 100.0% | 0 |
| April 2026 | 24 | 24 | 91.7% | 0 |
| May 2026 | 31 | 31 | 96.8% | 0 |
| June 2026 | 29 | 29 | 86.2% | 0 |
| July 2026 | 27 | 27 | 100.0% | 0 |