UA351
UA351 (United Airlines) is a multi-stop service on 21 routes, busiest Newark to Chicago. Of 456 departures recorded from October 2024 to April 2026, 83.5% left on time, according to the US BTS.
- On-time departures83.5%of 456 flights
- Average delay6.6 min
- April 202629▼ 3.3%vs April 2025
- Cancelled0.2%
- Legs flown under this number21
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 | 29 | 31 | ▲ 6.9% |
| February | 24 | 28 | ▲ 16.7% |
| March | 31 | 31 | 0.0% |
| April | 30 | 29 | ▼ 3.3% |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 11 | – | – |
| October | 52 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Apr) | 114 | 119 | ▲ 4.4% |
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 | 96.6% | 80.7% | ▼ 16.5% |
| February | 75.0% | 92.9% | ▲ 23.8% |
| March | 74.2% | 80.0% | ▲ 7.8% |
| April | 83.3% | 89.7% | ▲ 7.6% |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 81.8% | – | – |
| October | 84.6% | – | in progress |
| November | 93.3% | – | – |
| December | 71.0% | – | – |
| Year-to-date average (Jan–Apr) | 82.3% | 85.8% | ▲ 4.3% |
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 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Apr) | 0 | 1 |
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 99.8% 455
- Cancelled 0.2% 1
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Apr 29, 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 |
|---|---|---|---|---|
| IAH BWI George Bush Intercontinental Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,986 | -1.5 min | 91.9% | 37 |
| EWR ORD Newark Liberty International Airport – Chicago O'Hare International Airport | 1,154 | 7.0 min | 81.1% | 37 |
| DEN TUS Denver International Airport – Tucson International Airport | 1,029 | 13.1 min | 81.1% | 37 |
| DCA ORD Ronald Reagan Washington National Airport – Chicago O'Hare International Airport | 983 | 5.2 min | 90.6% | 32 |
| DCA IAH Ronald Reagan Washington National Airport – George Bush Intercontinental Airport | 1,942 | 7.0 min | 81.3% | 32 |
| BOS IAH Boston Logan International Airport – George Bush Intercontinental Airport | 2,567 | 3.6 min | 93.6% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 96.0% | 0 |
| November 2024 | 30 | 30 | 76.7% | 0 |
| December 2024 | 44 | 44 | 79.6% | 0 |
| January 2025 | 29 | 29 | 96.6% | 0 |
| February 2025 | 24 | 24 | 75.0% | 0 |
| March 2025 | 31 | 31 | 74.2% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| September 2025 | 11 | 11 | 81.8% | 0 |
| October 2025 | 52 | 52 | 84.6% | 0 |
| November 2025 | 30 | 30 | 93.3% | 0 |
| December 2025 | 31 | 31 | 71.0% | 0 |
| January 2026 | 31 | 31 | 80.7% | 0 |
| February 2026 | 28 | 28 | 92.9% | 0 |
| March 2026 | 31 | 30 | 80.0% | 1 |
| April 2026 | 29 | 29 | 89.7% | 0 |