YX4403
YX4403 (Republic Airways) is a multi-stop service on 19 routes, busiest Chicago to Portland. Of 552 departures recorded from December 2024 to July 2026, 73.7% left on time, according to the US BTS.
- On-time departures73.7%of 552 flights
- Average delay17.3 min
- July 202631▲ 14.8%vs July 2025
- Cancelled2.9%
- Legs flown under this number19
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 | 11 | 27 | ▲ 145.5% |
| February | 20 | 26 | ▲ 30.0% |
| March | 34 | 31 | ▼ 8.8% |
| April | 30 | 54 | ▲ 80.0% |
| May | 5 | 51 | ▲ 920.0% |
| June | – | 30 | – |
| July | 27 | 31 | ▲ 14.8% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
according to the US BTS · December 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 | 100.0% | 83.3% | ▼ 16.7% |
| February | 73.7% | 88.5% | ▲ 20.1% |
| March | 84.9% | 76.7% | ▼ 9.6% |
| April | 66.7% | 81.5% | ▲ 22.2% |
| May | 80.0% | 92.2% | ▲ 15.2% |
| June | – | 73.1% | – |
| July | 40.0% | 48.3% | ▲ 20.7% |
| August | 87.1% | – | – |
| September | 83.3% | – | – |
| October | 41.9% | – | in progress |
| November | 69.0% | – | – |
| December | 58.6% | – | – |
according to the US BTS · December 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · December 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 | 3 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | – | 4 | – |
| July | 2 | 2 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
according to the US BTS · December 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 97.1% 536
- Cancelled 2.9% 16
Share of all recorded flights in the period, all legs. · Dec 5, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD PWM Chicago O'Hare International Airport – Portland International Jetport | 1,444 | 35.6 min | 60.0% | 163 |
| ORD RDU Chicago O'Hare International Airport – Raleigh-Durham International Airport | 1,039 | 17.6 min | 69.5% | 131 |
| DCA PHL Ronald Reagan Washington National Airport – Philadelphia International Airport | 192 | 21.5 min | 65.5% | 56 |
| SRQ DCA Sarasota Bradenton International Airport – Ronald Reagan Washington National Airport | 1,373 | 4.8 min | 84.2% | 38 |
| DCA SRQ Ronald Reagan Washington National Airport – Sarasota Bradenton International Airport | 1,373 | 4.5 min | 84.2% | 38 |
| CHS LGA Charleston International Airport – LaGuardia Airport | 1,033 | 9.2 min | 92.9% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 23 | 23 | 69.6% | 0 |
| January 2025 | 11 | 11 | 100.0% | 0 |
| February 2025 | 20 | 19 | 73.7% | 1 |
| March 2025 | 34 | 33 | 84.9% | 1 |
| April 2025 | 30 | 30 | 66.7% | 0 |
| May 2025 | 5 | 5 | 80.0% | 0 |
| July 2025 | 27 | 25 | 40.0% | 2 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 83.3% | 0 |
| October 2025 | 31 | 31 | 41.9% | 0 |
| November 2025 | 29 | 29 | 69.0% | 0 |
| December 2025 | 31 | 29 | 58.6% | 2 |
| January 2026 | 27 | 24 | 83.3% | 3 |
| February 2026 | 26 | 26 | 88.5% | 0 |
| March 2026 | 31 | 30 | 76.7% | 1 |
| April 2026 | 54 | 54 | 81.5% | 0 |
| May 2026 | 51 | 51 | 92.2% | 0 |
| June 2026 | 30 | 26 | 73.1% | 4 |
| July 2026 | 31 | 29 | 48.3% | 2 |