UA1533
UA1533 (United Airlines) is a multi-stop service on 6 routes, busiest Houston to Baltimore. Of 132 departures recorded from October 2024 to May 2026, 86.4% left on time, according to the US BTS.
- On-time departures86.4%of 132 flights
- Average delay4.7 min
- May 202620▼ 4.8%vs May 2025
- Cancelled0.0%
- Legs flown under this number6
Recorded departures by month
Short series — UA1533 has only 8 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods7 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 16 | – | – |
| March | 5 | – | – |
| April | – | 1 | – |
| May | 21 | 20 | ▼ 4.8% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 29 | – | – |
| October | 25 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → May 2026
On-time departures by month
Short series — UA1533 has only 8 months so far. Enough to show the level now, not enough to read a trend.
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 periods7 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 81.3% | – | – |
| March | 100.0% | – | – |
| April | – | 0.0% | – |
| May | 85.7% | 80.0% | ▼ 6.7% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 89.7% | – | – |
| October | 84.0% | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Short series — UA1533 has only 8 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Short series — UA1533 has only 8 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods7 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 0 | – | – |
| March | 0 | – | – |
| April | – | 0 | – |
| May | 0 | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → May 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 100.0% 132
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 20, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IAH BWI George Bush Intercontinental Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,986 | 0.5 min | 87.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 15 | 15 | 100.0% | 0 |
| February 2025 | 16 | 16 | 81.3% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| May 2025 | 21 | 21 | 85.7% | 0 |
| September 2025 | 29 | 29 | 89.7% | 0 |
| October 2025 | 25 | 25 | 84.0% | 0 |
| April 2026 | 1 | 1 | 0.0% | 0 |
| May 2026 | 20 | 20 | 80.0% | 0 |