UA434
UA434 (United Airlines) is a multi-stop service on 17 routes, busiest Miami to Houston. Of 939 departures recorded from October 2024 to July 2026, 85.8% left on time, according to the US BTS.
- On-time departures85.8%of 939 flights
- Average delay6.5 min
- July 202625▼ 59.7%vs July 2025
- Cancelled1.2%
- Legs flown under this number17
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 | 41 | ▲ 32.3% |
| February | 44 | 64 | ▲ 45.5% |
| March | 62 | 39 | ▼ 37.1% |
| April | 60 | 30 | ▼ 50.0% |
| May | 41 | 30 | ▼ 26.8% |
| June | 60 | 26 | ▼ 56.7% |
| July | 62 | 25 | ▼ 59.7% |
| August | 49 | – | – |
| September | 30 | – | – |
| October | 37 | – | in progress |
| November | 59 | – | – |
| December | 68 | – | – |
| Year to date (Jan–Jul) | 360 | 255 | ▼ 29.2% |
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 | 96.6% | 80.0% | ▼ 17.1% |
| February | 90.9% | 85.5% | ▼ 6.0% |
| March | 91.9% | 71.1% | ▼ 22.7% |
| April | 95.0% | 93.3% | ▼ 1.8% |
| May | 82.9% | 93.3% | ▲ 12.5% |
| June | 89.7% | 92.3% | ▲ 3.0% |
| July | 85.5% | 96.0% | ▲ 12.3% |
| August | 89.8% | – | – |
| September | 93.3% | – | – |
| October | 88.9% | – | in progress |
| November | 62.7% | – | – |
| December | 73.1% | – | – |
| Year-to-date average (Jan–Jul) | 90.4% | 87.4% | ▼ 3.3% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 2 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 4 | 4 | 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 98.8% 928
- Cancelled 1.2% 11
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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 73.3% | 0 |
| December 2024 | 31 | 30 | 96.7% | 1 |
| January 2025 | 31 | 29 | 96.6% | 2 |
| February 2025 | 44 | 44 | 90.9% | 0 |
| March 2025 | 62 | 62 | 91.9% | 0 |
| April 2025 | 60 | 60 | 95.0% | 0 |
| May 2025 | 41 | 41 | 82.9% | 0 |
| June 2025 | 60 | 58 | 89.7% | 2 |
| July 2025 | 62 | 62 | 85.5% | 0 |
| August 2025 | 49 | 49 | 89.8% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 37 | 36 | 88.9% | 1 |
| November 2025 | 59 | 59 | 62.7% | 0 |
| December 2025 | 68 | 67 | 73.1% | 1 |
| January 2026 | 41 | 40 | 80.0% | 1 |
| February 2026 | 64 | 62 | 85.5% | 2 |
| March 2026 | 39 | 38 | 71.1% | 1 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 30 | 30 | 93.3% | 0 |
| June 2026 | 26 | 26 | 92.3% | 0 |
| July 2026 | 25 | 25 | 96.0% | 0 |