UA2439
UA2439 (United Airlines) is a multi-stop service on 14 routes, busiest Houston to Boston. Of 699 departures recorded from October 2024 to July 2026, 77.9% left on time, according to the US BTS.
- On-time departures77.9%of 699 flights
- Average delay14.7 min
- July 202631▲ 3.3%vs July 2025
- Cancelled0.9%
- Legs flown under this number14
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 | 37 | 25 | ▼ 32.4% |
| February | 44 | 25 | ▼ 43.2% |
| March | 59 | 31 | ▼ 47.5% |
| April | 30 | 30 | 0.0% |
| May | 31 | 28 | ▼ 9.7% |
| June | 30 | 30 | 0.0% |
| July | 30 | 31 | ▲ 3.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 29 | – | in progress |
| November | 24 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 261 | 200 | ▼ 23.4% |
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 | 80.6% | 84.0% | ▲ 4.3% |
| February | 79.6% | 91.3% | ▲ 14.8% |
| March | 84.8% | 96.8% | ▲ 14.2% |
| April | 86.7% | 100.0% | ▲ 15.4% |
| May | 53.3% | 78.6% | ▲ 47.3% |
| June | 43.3% | 53.3% | ▲ 23.1% |
| July | 66.7% | 80.7% | ▲ 21.0% |
| August | 70.0% | – | – |
| September | 76.7% | – | – |
| October | 62.1% | – | in progress |
| November | 83.3% | – | – |
| December | 80.0% | – | – |
| Year-to-date average (Jan–Jul) | 70.7% | 83.5% | ▲ 18.1% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 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 99.1% 693
- Cancelled 0.9% 6
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IAH BOS George Bush Intercontinental Airport – Boston Logan International Airport | 2,567 | 23.4 min | 70.8% | 370 |
| TPA EWR Tampa International Airport – Newark Liberty International Airport | 1,607 | -3.1 min | 97.3% | 77 |
| IAH ORF George Bush Intercontinental Airport – Norfolk International Airport | 1,931 | 19.2 min | 65.3% | 72 |
| TVC ORD Cherry Capital Airport – Chicago O'Hare International Airport | 360 | 8.5 min | 86.1% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 30 | 30 | 80.0% | 0 |
| December 2024 | 44 | 43 | 90.7% | 1 |
| January 2025 | 37 | 36 | 80.6% | 1 |
| February 2025 | 44 | 44 | 79.6% | 0 |
| March 2025 | 59 | 59 | 84.8% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 30 | 53.3% | 1 |
| June 2025 | 30 | 30 | 43.3% | 0 |
| July 2025 | 30 | 30 | 66.7% | 0 |
| August 2025 | 31 | 30 | 70.0% | 1 |
| September 2025 | 30 | 30 | 76.7% | 0 |
| October 2025 | 29 | 29 | 62.1% | 0 |
| November 2025 | 24 | 24 | 83.3% | 0 |
| December 2025 | 30 | 30 | 80.0% | 0 |
| January 2026 | 25 | 25 | 84.0% | 0 |
| February 2026 | 25 | 23 | 91.3% | 2 |
| March 2026 | 31 | 31 | 96.8% | 0 |
| April 2026 | 30 | 30 | 100.0% | 0 |
| May 2026 | 28 | 28 | 78.6% | 0 |
| June 2026 | 30 | 30 | 53.3% | 0 |
| July 2026 | 31 | 31 | 80.7% | 0 |