YX3663
YX3663 (Republic Airways) is a multi-stop service on 16 routes, busiest Chicago to Bangor. Of 280 departures recorded from October 2024 to April 2026, 86.2% left on time, according to the US BTS.
- On-time departures86.2%of 280 flights
- Average delay8.4 min
- April 20264
- Cancelled1.8%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods12 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 9 | 25 | ▲ 177.8% |
| February | 2 | 27 | ▲ 1,250.0% |
| March | 24 | 22 | ▼ 8.3% |
| April | – | 4 | – |
| May | 13 | – | – |
| June | 30 | – | – |
| July | 30 | – | – |
| August | 14 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 16 | – | – |
according to the US BTS · October 2024 → April 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 periods12 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 96.0% | ▼ 4.0% |
| February | 100.0% | 100.0% | 0.0% |
| March | 70.8% | 85.0% | ▲ 20.0% |
| April | – | 100.0% | – |
| May | 100.0% | – | – |
| June | 80.0% | – | – |
| July | 60.0% | – | – |
| August | 69.2% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 75.0% | – | – |
according to the US BTS · October 2024 → April 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → April 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods12 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 2 | – |
| March | 0 | 2 | – |
| April | – | 0 | – |
| May | 0 | – | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 1 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → April 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 98.2% 275
- Cancelled 1.8% 5
Share of all recorded flights in the period, all legs. · Oct 27, 2024 → Apr 25, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD BGR Chicago O'Hare International Airport – Bangor International Airport | 1,569 | 43.9 min | 66.7% | 49 |
| ORD SAV Chicago O'Hare International Airport – Savannah Hilton Head International Airport | 1,246 | 3.7 min | 82.9% | 35 |
| ORD LEX Chicago O'Hare International Airport – Blue Grass Airport | 521 | -1.7 min | 97.1% | 35 |
| ILM EWR Wilmington International Airport – Newark Liberty International Airport | 786 | -5.4 min | 100.0% | 35 |
| MCI ORD Kansas City International Airport – Chicago O'Hare International Airport | 647 | -0.5 min | 96.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 5 | 5 | 100.0% | 0 |
| November 2024 | 29 | 29 | 96.6% | 0 |
| December 2024 | 30 | 30 | 100.0% | 0 |
| January 2025 | 9 | 9 | 100.0% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 24 | 24 | 70.8% | 0 |
| May 2025 | 13 | 13 | 100.0% | 0 |
| June 2025 | 30 | 30 | 80.0% | 0 |
| July 2025 | 30 | 30 | 60.0% | 0 |
| August 2025 | 14 | 13 | 69.2% | 1 |
| December 2025 | 16 | 16 | 75.0% | 0 |
| January 2026 | 25 | 25 | 96.0% | 0 |
| February 2026 | 27 | 25 | 100.0% | 2 |
| March 2026 | 22 | 20 | 85.0% | 2 |
| April 2026 | 4 | 4 | 100.0% | 0 |