MQ4021
MQ4021 (Envoy Air) is a multi-stop service on 7 routes, busiest Phoenix to Carlsbad. Of 532 departures recorded from November 2024 to July 2026, 83.3% left on time, according to the US BTS.
- On-time departures83.3%of 532 flights
- Average delay9.2 min
- July 202660▲ 100.0%vs July 2025
- Cancelled0.9%
- Legs flown under this number7
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 | 2 | 9 | ▲ 350.0% |
| February | 24 | 4 | ▼ 83.3% |
| March | 8 | 4 | ▼ 50.0% |
| April | 30 | 25 | ▼ 16.7% |
| May | 31 | 39 | ▲ 25.8% |
| June | 30 | 60 | ▲ 100.0% |
| July | 30 | 60 | ▲ 100.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 155 | 201 | ▲ 29.7% |
according to the US BTS · November 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 | 100.0% | 77.8% | ▼ 22.2% |
| February | 83.3% | 100.0% | ▲ 20.0% |
| March | 83.3% | 75.0% | ▼ 10.0% |
| April | 86.7% | 96.0% | ▲ 10.8% |
| May | 93.6% | 71.8% | ▼ 23.3% |
| June | 76.7% | 73.3% | ▼ 4.4% |
| July | 80.0% | 78.3% | ▼ 2.1% |
| August | 90.3% | – | – |
| September | 96.6% | – | – |
| October | 87.1% | – | in progress |
| November | 92.9% | – | – |
| December | 87.1% | – | – |
| Year-to-date average (Jan–Jul) | 86.2% | 81.7% | ▼ 5.2% |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 2 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 0 | ▼ 100.0% |
according to the US BTS · November 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 99.1% 527
- Cancelled 0.9% 5
Share of all recorded flights in the period, all legs. · Nov 5, 2024 → 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 |
|---|---|---|---|---|
| PHX CLD Phoenix Sky Harbor International Airport – McClellan-Palomar Airport | 491 | 6.9 min | 83.3% | 330 |
| CLD PHX McClellan-Palomar Airport – Phoenix Sky Harbor International Airport | 491 | 11.3 min | 78.3% | 69 |
| SPS DFW Wichita Falls Municipal Airport / Sheppard Air Force Base – Dallas Fort Worth International Airport | 182 | 22.7 min | 90.5% | 64 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 16 | 16 | 75.0% | 0 |
| December 2024 | 8 | 8 | 75.0% | 0 |
| January 2025 | 2 | 1 | 100.0% | 1 |
| February 2025 | 24 | 24 | 83.3% | 0 |
| March 2025 | 8 | 6 | 83.3% | 2 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 93.6% | 0 |
| June 2025 | 30 | 30 | 76.7% | 0 |
| July 2025 | 30 | 30 | 80.0% | 0 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 29 | 96.6% | 1 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 29 | 28 | 92.9% | 1 |
| December 2025 | 31 | 31 | 87.1% | 0 |
| January 2026 | 9 | 9 | 77.8% | 0 |
| February 2026 | 4 | 4 | 100.0% | 0 |
| March 2026 | 4 | 4 | 75.0% | 0 |
| April 2026 | 25 | 25 | 96.0% | 0 |
| May 2026 | 39 | 39 | 71.8% | 0 |
| June 2026 | 60 | 60 | 73.3% | 0 |
| July 2026 | 60 | 60 | 78.3% | 0 |