MQ3577
MQ3577 (Envoy Air) is a multi-stop service on 23 routes, busiest Key West to Miami. Of 827 departures recorded from October 2024 to July 2026, 82.8% left on time, according to the US BTS.
- On-time departures82.8%of 827 flights
- Average delay8.3 min
- July 202652▼ 1.9%vs July 2025
- Cancelled1.7%
- Legs flown under this number23
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 | 6 | 16 | ▲ 166.7% |
| February | 18 | 23 | ▲ 27.8% |
| March | 33 | 31 | ▼ 6.1% |
| April | 31 | 30 | ▼ 3.2% |
| May | 50 | 38 | ▼ 24.0% |
| June | 53 | 52 | ▼ 1.9% |
| July | 53 | 52 | ▼ 1.9% |
| August | 45 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 28 | – | – |
| December | 42 | – | – |
| Year to date (Jan–Jul) | 244 | 242 | ▼ 0.8% |
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 | 83.3% | 93.8% | ▲ 12.5% |
| February | 88.9% | 91.3% | ▲ 2.7% |
| March | 78.8% | 66.7% | ▼ 15.4% |
| April | 90.3% | 80.0% | ▼ 11.4% |
| May | 57.5% | 79.0% | ▲ 37.4% |
| June | 81.1% | 89.6% | ▲ 10.4% |
| July | 81.1% | 84.6% | ▲ 4.3% |
| August | 82.2% | – | – |
| September | 88.3% | – | – |
| October | 88.7% | – | in progress |
| November | 80.0% | – | – |
| December | 67.5% | – | – |
| Year-to-date average (Jan–Jul) | 80.1% | 83.6% | ▲ 4.2% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 3 | 0 | ▼ 100.0% |
| June | 0 | 4 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 3 | 5 | ▲ 66.7% |
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% 813
- Cancelled 1.7% 14
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| EYW MIA Key West International Airport – Miami International Airport | 202 | 11.1 min | 83.6% | 226 |
| MIA EYW Miami International Airport – Key West International Airport | 202 | 2.5 min | 89.3% | 168 |
| HSV DFW Huntsville International Airport – Dallas Fort Worth International Airport | 968 | 11.5 min | 81.4% | 61 |
| DFW HSV Dallas Fort Worth International Airport – Huntsville International Airport | 968 | 2.1 min | 88.1% | 61 |
| CLT HHH Charlotte Douglas International Airport – Hilton Head Airport | 333 | 1.2 min | 86.8% | 38 |
| ORD DTW Chicago O'Hare International Airport – Detroit Metropolitan Wayne County Airport | 376 | 22.5 min | 58.6% | 30 |
| ORD COU Chicago O'Hare International Airport – Columbia Regional Airport | 507 | 18.0 min | 76.9% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 92.5% | 0 |
| November 2024 | 33 | 32 | 96.9% | 1 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 6 | 6 | 83.3% | 0 |
| February 2025 | 18 | 18 | 88.9% | 0 |
| March 2025 | 33 | 33 | 78.8% | 0 |
| April 2025 | 31 | 31 | 90.3% | 0 |
| May 2025 | 50 | 47 | 57.5% | 3 |
| June 2025 | 53 | 53 | 81.1% | 0 |
| July 2025 | 53 | 53 | 81.1% | 0 |
| August 2025 | 45 | 45 | 82.2% | 0 |
| September 2025 | 60 | 60 | 88.3% | 0 |
| October 2025 | 62 | 62 | 88.7% | 0 |
| November 2025 | 28 | 25 | 80.0% | 3 |
| December 2025 | 42 | 40 | 67.5% | 2 |
| January 2026 | 16 | 16 | 93.8% | 0 |
| February 2026 | 23 | 23 | 91.3% | 0 |
| March 2026 | 31 | 30 | 66.7% | 1 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 38 | 38 | 79.0% | 0 |
| June 2026 | 52 | 48 | 89.6% | 4 |
| July 2026 | 52 | 52 | 84.6% | 0 |