UA1833
UA1833 (United Airlines) is a multi-stop service on 10 routes, busiest Boston to Newark. Of 852 departures recorded from October 2024 to July 2026, 93.1% left on time, according to the US BTS.
- On-time departures93.1%of 852 flights
- Average delay0.2 min
- July 202654▲ 74.2%vs July 2025
- Cancelled2.5%
- Legs flown under this number10
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 | 31 | 57 | ▲ 83.9% |
| February | 40 | 37 | ▼ 7.5% |
| March | 30 | 50 | ▲ 66.7% |
| April | 30 | 30 | 0.0% |
| May | 35 | 40 | ▲ 14.3% |
| June | 30 | 55 | ▲ 83.3% |
| July | 31 | 54 | ▲ 74.2% |
| August | 42 | – | – |
| September | 51 | – | – |
| October | 37 | – | in progress |
| November | 59 | – | – |
| December | 32 | – | – |
| Year to date (Jan–Jul) | 227 | 323 | ▲ 42.3% |
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 | 96.8% | 94.3% | ▼ 2.5% |
| February | 86.8% | 94.1% | ▲ 8.4% |
| March | 100.0% | 90.0% | ▼ 10.0% |
| April | 93.3% | 100.0% | ▲ 7.1% |
| May | 94.1% | 97.5% | ▲ 3.6% |
| June | 93.3% | 98.2% | ▲ 5.2% |
| July | 92.6% | 84.3% | ▼ 8.9% |
| August | 100.0% | – | – |
| September | 90.2% | – | – |
| October | 97.2% | – | in progress |
| November | 91.5% | – | – |
| December | 84.4% | – | – |
| Year-to-date average (Jan–Jul) | 93.9% | 94.1% | ▲ 0.2% |
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 | 4 | – |
| February | 2 | 3 | ▲ 50.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 1 | – |
| July | 4 | 3 | ▼ 25.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 7 | 11 | ▲ 57.1% |
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 97.5% 831
- Cancelled 2.5% 21
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 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 |
|---|---|---|---|---|
| BOS EWR Boston Logan International Airport – Newark Liberty International Airport | 322 | -1.2 min | 94.5% | 610 |
| EWR CLE Newark Liberty International Airport – Cleveland Hopkins International Airport | 649 | 1.0 min | 92.1% | 67 |
| EWR ATL Newark Liberty International Airport – Hartsfield Jackson Atlanta International Airport | 1,199 | 0.9 min | 91.5% | 47 |
| EWR EYW Newark Liberty International Airport – Key West International Airport | 1,928 | 9.6 min | 86.1% | 37 |
| EWR LAS Newark Liberty International Airport – Harry Reid International Airport | 3,576 | -2.8 min | 97.1% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 29 | 89.7% | 1 |
| December 2024 | 31 | 31 | 87.1% | 0 |
| January 2025 | 31 | 31 | 96.8% | 0 |
| February 2025 | 40 | 38 | 86.8% | 2 |
| March 2025 | 30 | 30 | 100.0% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 35 | 34 | 94.1% | 1 |
| June 2025 | 30 | 30 | 93.3% | 0 |
| July 2025 | 31 | 27 | 92.6% | 4 |
| August 2025 | 42 | 41 | 100.0% | 1 |
| September 2025 | 51 | 51 | 90.2% | 0 |
| October 2025 | 37 | 36 | 97.2% | 1 |
| November 2025 | 59 | 59 | 91.5% | 0 |
| December 2025 | 32 | 32 | 84.4% | 0 |
| January 2026 | 57 | 53 | 94.3% | 4 |
| February 2026 | 37 | 34 | 94.1% | 3 |
| March 2026 | 50 | 50 | 90.0% | 0 |
| April 2026 | 30 | 30 | 100.0% | 0 |
| May 2026 | 40 | 40 | 97.5% | 0 |
| June 2026 | 55 | 54 | 98.2% | 1 |
| July 2026 | 54 | 51 | 84.3% | 3 |