MQ3977
MQ3977 (Envoy Air) is a multi-stop service on 17 routes, busiest Chicago to Chattanooga. Of 756 departures recorded from October 2024 to July 2026, 84.0% left on time, according to the US BTS.
- On-time departures84.0%of 756 flights
- Average delay8.6 min
- July 202656▲ 80.6%vs July 2025
- Cancelled1.6%
- Legs flown under this number17
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 | 55 | ▲ 816.7% |
| February | 16 | 35 | ▲ 118.8% |
| March | 5 | 31 | ▲ 520.0% |
| April | 54 | 30 | ▼ 44.4% |
| May | 62 | 28 | ▼ 54.8% |
| June | 34 | 56 | ▲ 64.7% |
| July | 31 | 56 | ▲ 80.6% |
| August | 49 | – | – |
| September | 32 | – | – |
| October | 24 | – | in progress |
| November | 27 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 208 | 291 | ▲ 39.9% |
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 | 80.0% | 92.7% | ▲ 15.9% |
| February | 87.5% | 85.7% | ▼ 2.0% |
| March | 100.0% | 74.2% | ▼ 25.8% |
| April | 87.0% | 77.8% | ▼ 10.6% |
| May | 81.4% | 92.9% | ▲ 14.1% |
| June | 64.7% | 72.2% | ▲ 11.6% |
| July | 74.2% | 91.1% | ▲ 22.8% |
| August | 91.5% | – | – |
| September | 83.9% | – | – |
| October | 83.3% | – | in progress |
| November | 100.0% | – | – |
| December | 85.2% | – | – |
| Year-to-date average (Jan–Jul) | 82.1% | 83.8% | ▲ 2.0% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 3 | – |
| May | 3 | 0 | ▼ 100.0% |
| June | 0 | 2 | – |
| July | 0 | 0 | – |
| August | 2 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 5 | ▲ 25.0% |
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 98.4% 744
- Cancelled 1.6% 12
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
12Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 92.5% | 0 |
| November 2024 | 31 | 31 | 83.9% | 0 |
| December 2024 | 27 | 27 | 70.4% | 0 |
| January 2025 | 6 | 5 | 80.0% | 1 |
| February 2025 | 16 | 16 | 87.5% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| April 2025 | 54 | 54 | 87.0% | 0 |
| May 2025 | 62 | 59 | 81.4% | 3 |
| June 2025 | 34 | 34 | 64.7% | 0 |
| July 2025 | 31 | 31 | 74.2% | 0 |
| August 2025 | 49 | 47 | 91.5% | 2 |
| September 2025 | 32 | 31 | 83.9% | 1 |
| October 2025 | 24 | 24 | 83.3% | 0 |
| November 2025 | 27 | 27 | 100.0% | 0 |
| December 2025 | 27 | 27 | 85.2% | 0 |
| January 2026 | 55 | 55 | 92.7% | 0 |
| February 2026 | 35 | 35 | 85.7% | 0 |
| March 2026 | 31 | 31 | 74.2% | 0 |
| April 2026 | 30 | 27 | 77.8% | 3 |
| May 2026 | 28 | 28 | 92.9% | 0 |
| June 2026 | 56 | 54 | 72.2% | 2 |
| July 2026 | 56 | 56 | 91.1% | 0 |