G4638
G4638 (Allegiant Air) is a multi-stop service on 13 routes, busiest Bismarck to Mesa. Of 224 departures recorded from October 2024 to July 2026, 85.2% left on time, according to the US BTS.
- On-time departures85.2%of 224 flights
- Average delay9.3 min
- July 202612▲ 140.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number13
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 13 | 14 | ▲ 7.7% |
| February | 17 | 4 | ▼ 76.5% |
| March | 14 | 4 | ▼ 71.4% |
| April | 18 | 8 | ▼ 55.6% |
| May | 10 | 8 | ▼ 20.0% |
| June | 8 | 11 | ▲ 37.5% |
| July | 5 | 12 | ▲ 140.0% |
| August | – | – | – |
| September | 8 | – | – |
| October | 19 | – | in progress |
| November | 16 | – | – |
| December | 12 | – | – |
| Year to date (Jan–Jul) | 85 | 61 | ▼ 28.2% |
according to the US BTS · October 2024 → July 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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 92.3% | 71.4% | ▼ 22.6% |
| February | 76.5% | 100.0% | ▲ 30.8% |
| March | 100.0% | 100.0% | 0.0% |
| April | 94.4% | 75.0% | ▼ 20.6% |
| May | 90.0% | 75.0% | ▼ 16.7% |
| June | 100.0% | 90.9% | ▼ 9.1% |
| July | 100.0% | 66.7% | ▼ 33.3% |
| August | – | – | – |
| September | 87.5% | – | – |
| October | 79.0% | – | in progress |
| November | 81.3% | – | – |
| December | 81.8% | – | – |
| Year-to-date average (Jan–Jul) | 93.3% | 82.7% | ▼ 11.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | – | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 0 | 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 99.6% 223
- Cancelled 0.4% 1
Share of all recorded flights in the period, all legs. · Oct 14, 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 |
|---|---|---|---|---|
| BIS AZA Bismarck Municipal Airport – Mesa Gateway Airport | 1,758 | 7.3 min | 89.8% | 88 |
| BIL AZA Billings Logan International Airport – Mesa Gateway Airport | 1,415 | -2.2 min | 80.0% | 35 |
| AZA BIS Mesa Gateway Airport – Bismarck Municipal Airport | 1,758 | -0.2 min | 80.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 5 | 5 | 100.0% | 0 |
| November 2024 | 6 | 6 | 100.0% | 0 |
| December 2024 | 12 | 12 | 75.0% | 0 |
| January 2025 | 13 | 13 | 92.3% | 0 |
| February 2025 | 17 | 17 | 76.5% | 0 |
| March 2025 | 14 | 14 | 100.0% | 0 |
| April 2025 | 18 | 18 | 94.4% | 0 |
| May 2025 | 10 | 10 | 90.0% | 0 |
| June 2025 | 8 | 8 | 100.0% | 0 |
| July 2025 | 5 | 5 | 100.0% | 0 |
| September 2025 | 8 | 8 | 87.5% | 0 |
| October 2025 | 19 | 19 | 79.0% | 0 |
| November 2025 | 16 | 16 | 81.3% | 0 |
| December 2025 | 12 | 11 | 81.8% | 1 |
| January 2026 | 14 | 14 | 71.4% | 0 |
| February 2026 | 4 | 4 | 100.0% | 0 |
| March 2026 | 4 | 4 | 100.0% | 0 |
| April 2026 | 8 | 8 | 75.0% | 0 |
| May 2026 | 8 | 8 | 75.0% | 0 |
| June 2026 | 11 | 11 | 90.9% | 0 |
| July 2026 | 12 | 12 | 66.7% | 0 |