MQ4157
MQ4157 (Envoy Air) is a multi-stop service on 8 routes, busiest Rapid City to Dallas-Fort Worth. Of 459 departures recorded from November 2024 to May 2026, 80.7% left on time, according to the US BTS.
- On-time departures80.7%of 459 flights
- Average delay8.7 min
- May 202638▲ 22.6%vs May 2025
- Cancelled2.0%
- Legs flown under this number8
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 36 | ▲ 3,500.0% |
| February | – | 11 | – |
| March | 22 | – | – |
| April | 30 | 46 | ▲ 53.3% |
| May | 31 | 38 | ▲ 22.6% |
| June | 30 | – | – |
| July | 31 | – | – |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 5 | – | in progress |
| November | 51 | – | – |
| December | 58 | – | – |
according to the US BTS · November 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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 65.7% | ▼ 34.3% |
| February | – | 72.7% | – |
| March | 86.4% | – | – |
| April | 75.9% | 84.4% | ▲ 11.3% |
| May | 75.9% | 89.5% | ▲ 17.9% |
| June | 66.7% | – | – |
| July | 71.0% | – | – |
| August | 83.9% | – | – |
| September | 79.3% | – | – |
| October | 80.0% | – | in progress |
| November | 91.7% | – | – |
| December | 86.2% | – | – |
according to the US BTS · November 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | – | 0 | – |
| March | 0 | – | – |
| April | 1 | 1 | 0.0% |
| May | 2 | 0 | ▼ 100.0% |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
according to the US BTS · November 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 98.0% 450
- Cancelled 2.0% 9
Share of all recorded flights in the period, all legs. · Nov 9, 2024 → May 20, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| RAP DFW Rapid City Regional Airport – Dallas Fort Worth International Airport | 1,345 | 11.1 min | 75.8% | 190 |
| PNS MIA Pensacola International Airport – Miami International Airport | 853 | 9.9 min | 74.1% | 59 |
| MIA PNS Miami International Airport – Pensacola International Airport | 853 | 0.7 min | 88.1% | 59 |
| PHX ICT Phoenix Sky Harbor International Airport – Wichita Dwight D. Eisenhower National Airport | 1,398 | 1.4 min | 92.9% | 43 |
| ICT PHX Wichita Dwight D. Eisenhower National Airport – Phoenix Sky Harbor International Airport | 1,398 | -3.6 min | 95.0% | 42 |
| BOS ORD Boston Logan International Airport – Chicago O'Hare International Airport | 1,391 | 27.0 min | 69.4% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 4 | 4 | 100.0% | 0 |
| December 2024 | 4 | 4 | 75.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| March 2025 | 22 | 22 | 86.4% | 0 |
| April 2025 | 30 | 29 | 75.9% | 1 |
| May 2025 | 31 | 29 | 75.9% | 2 |
| June 2025 | 30 | 30 | 66.7% | 0 |
| July 2025 | 31 | 31 | 71.0% | 0 |
| August 2025 | 31 | 31 | 83.9% | 0 |
| September 2025 | 30 | 29 | 79.3% | 1 |
| October 2025 | 5 | 5 | 80.0% | 0 |
| November 2025 | 51 | 48 | 91.7% | 3 |
| December 2025 | 58 | 58 | 86.2% | 0 |
| January 2026 | 36 | 35 | 65.7% | 1 |
| February 2026 | 11 | 11 | 72.7% | 0 |
| April 2026 | 46 | 45 | 84.4% | 1 |
| May 2026 | 38 | 38 | 89.5% | 0 |