MQ3539
MQ3539 (Envoy Air) is a multi-stop service on 19 routes, busiest Phoenix to Billings. Of 671 departures recorded from October 2024 to July 2026, 86.6% left on time, according to the US BTS.
- On-time departures86.6%of 671 flights
- Average delay4.9 min
- July 202662▲ 169.6%vs July 2025
- Cancelled1.3%
- Legs flown under this number19
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 31 | 23 | ▼ 25.8% |
| February | 28 | 20 | ▼ 28.6% |
| March | 29 | 28 | ▼ 3.4% |
| April | 54 | 30 | ▼ 44.4% |
| May | 34 | 42 | ▲ 23.5% |
| June | 27 | 60 | ▲ 122.2% |
| July | 23 | 62 | ▲ 169.6% |
| August | 26 | – | – |
| September | 17 | – | – |
| October | 54 | – | in progress |
| November | 41 | – | – |
| December | 19 | – | – |
| Year to date (Jan–Jul) | 226 | 265 | ▲ 17.3% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 93.6% | 87.0% | ▼ 7.0% |
| February | 100.0% | 100.0% | 0.0% |
| March | 82.8% | 92.9% | ▲ 12.2% |
| April | 90.7% | 90.0% | ▼ 0.8% |
| May | 70.6% | 76.2% | ▲ 7.9% |
| June | 88.9% | 80.4% | ▼ 9.6% |
| July | 87.0% | 91.9% | ▲ 5.7% |
| August | 73.1% | – | – |
| September | 88.2% | – | – |
| October | 85.2% | – | in progress |
| November | 86.5% | – | – |
| December | 89.5% | – | – |
| Year-to-date average (Jan–Jul) | 87.6% | 88.3% | ▲ 0.8% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 4 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 4 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 300.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.7% 662
- Cancelled 1.3% 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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX BIL Phoenix Sky Harbor International Airport – Billings Logan International Airport | 1,407 | 0.3 min | 91.8% | 99 |
| DFW AMA Dallas Fort Worth International Airport – Rick Husband Amarillo International Airport | 502 | 3.6 min | 89.1% | 94 |
| GPT DFW Gulfport Biloxi International Airport – Dallas Fort Worth International Airport | 803 | 9.8 min | 75.7% | 76 |
| DFW GPT Dallas Fort Worth International Airport – Gulfport Biloxi International Airport | 803 | 3.4 min | 89.2% | 76 |
| SDF ORD Louisville Muhammad Ali International Airport – Chicago O'Hare International Airport | 462 | 5.0 min | 91.2% | 68 |
| ORD COU Chicago O'Hare International Airport – Columbia Regional Airport | 507 | 3.8 min | 93.3% | 45 |
| VPS ORD Destin-Fort Walton Beach Airport – Chicago O'Hare International Airport | 1,284 | 1.6 min | 83.9% | 31 |
| ORD VPS Chicago O'Hare International Airport – Destin-Fort Walton Beach Airport | 1,284 | 1.2 min | 90.3% | 31 |
| ORD TVC Chicago O'Hare International Airport – Cherry Capital Airport | 360 | 34.6 min | 70.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 83.3% | 0 |
| November 2024 | 6 | 6 | 83.3% | 0 |
| December 2024 | 11 | 11 | 90.9% | 0 |
| January 2025 | 31 | 31 | 93.6% | 0 |
| February 2025 | 28 | 27 | 100.0% | 1 |
| March 2025 | 29 | 29 | 82.8% | 0 |
| April 2025 | 54 | 54 | 90.7% | 0 |
| May 2025 | 34 | 34 | 70.6% | 0 |
| June 2025 | 27 | 27 | 88.9% | 0 |
| July 2025 | 23 | 23 | 87.0% | 0 |
| August 2025 | 26 | 26 | 73.1% | 0 |
| September 2025 | 17 | 17 | 88.2% | 0 |
| October 2025 | 54 | 54 | 85.2% | 0 |
| November 2025 | 41 | 37 | 86.5% | 4 |
| December 2025 | 19 | 19 | 89.5% | 0 |
| January 2026 | 23 | 23 | 87.0% | 0 |
| February 2026 | 20 | 20 | 100.0% | 0 |
| March 2026 | 28 | 28 | 92.9% | 0 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 42 | 42 | 76.2% | 0 |
| June 2026 | 60 | 56 | 80.4% | 4 |
| July 2026 | 62 | 62 | 91.9% | 0 |