G4558
G4558 (Allegiant Air) is a multi-stop service on 17 routes, busiest Boston to Grand Rapids. Of 127 departures recorded from October 2024 to July 2026, 79.5% left on time, according to the US BTS.
- On-time departures79.5%of 127 flights
- Average delay10.2 min
- July 20266▼ 33.3%vs July 2025
- Cancelled0.0%
- 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 | 2 | 2 | 0.0% |
| February | 4 | 7 | ▲ 75.0% |
| March | 5 | 6 | ▲ 20.0% |
| April | 10 | 8 | ▼ 20.0% |
| May | 10 | 5 | ▼ 50.0% |
| June | 9 | 4 | ▼ 55.6% |
| July | 9 | 6 | ▼ 33.3% |
| August | 10 | – | – |
| September | 8 | – | – |
| October | 1 | – | in progress |
| November | 3 | – | – |
| December | 7 | – | – |
| Year to date (Jan–Jul) | 49 | 38 | ▼ 22.4% |
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 | 0.0% | 0.0% | – |
| February | 75.0% | 57.1% | ▼ 23.8% |
| March | 100.0% | 50.0% | ▼ 50.0% |
| April | 100.0% | 87.5% | ▼ 12.5% |
| May | 100.0% | 100.0% | 0.0% |
| June | 88.9% | 75.0% | ▼ 15.6% |
| July | 88.9% | 66.7% | ▼ 25.0% |
| August | 100.0% | – | – |
| September | 75.0% | – | – |
| October | 100.0% | – | in progress |
| November | 66.7% | – | – |
| December | 42.9% | – | – |
| Year-to-date average (Jan–Jul) | 79.0% | 62.3% | ▼ 21.1% |
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 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| 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 100.0% 127
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 18, 2024 → Jul 27, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS GRR Boston Logan International Airport – Gerald R. Ford International Airport | 1,188 | 3.8 min | 93.8% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 2 | 2 | 100.0% | 0 |
| November 2024 | 2 | 2 | 100.0% | 0 |
| December 2024 | 7 | 7 | 71.4% | 0 |
| January 2025 | 2 | 2 | 0.0% | 0 |
| February 2025 | 4 | 4 | 75.0% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| April 2025 | 10 | 10 | 100.0% | 0 |
| May 2025 | 10 | 10 | 100.0% | 0 |
| June 2025 | 9 | 9 | 88.9% | 0 |
| July 2025 | 9 | 9 | 88.9% | 0 |
| August 2025 | 10 | 10 | 100.0% | 0 |
| September 2025 | 8 | 8 | 75.0% | 0 |
| October 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 3 | 3 | 66.7% | 0 |
| December 2025 | 7 | 7 | 42.9% | 0 |
| January 2026 | 2 | 2 | 0.0% | 0 |
| February 2026 | 7 | 7 | 57.1% | 0 |
| March 2026 | 6 | 6 | 50.0% | 0 |
| April 2026 | 8 | 8 | 87.5% | 0 |
| May 2026 | 5 | 5 | 100.0% | 0 |
| June 2026 | 4 | 4 | 75.0% | 0 |
| July 2026 | 6 | 6 | 66.7% | 0 |