UA1151
UA1151 (United Airlines) is a multi-stop service on 7 routes, busiest Washington to Chicago. Of 157 departures recorded from October 2024 to May 2026, 86.6% left on time, according to the US BTS.
- On-time departures86.6%of 157 flights
- Average delay5.9 min
- May 202620▼ 35.5%vs May 2025
- Cancelled0.0%
- Legs flown under this number7
Recorded departures by month
Short series — UA1151 has only 7 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 periods6 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | 1 | – |
| May | 31 | 20 | ▼ 35.5% |
| June | 25 | – | – |
| 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 — UA1151 has only 7 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 periods6 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | 100.0% | – |
| May | 64.5% | 95.0% | ▲ 47.2% |
| June | 100.0% | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 93.1% | – | – |
| October | 76.0% | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Short series — UA1151 has only 7 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 — UA1151 has only 7 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods6 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | 0 | – |
| May | 0 | 0 | – |
| June | 0 | – | – |
| 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% 157
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 20, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DCA ORD Ronald Reagan Washington National Airport – Chicago O'Hare International Airport | 983 | -4.6 min | 100.0% | 35 |
| DEN FAR Denver International Airport – Hector International Airport | 1,009 | 10.9 min | 77.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 96.2% | 0 |
| May 2025 | 31 | 31 | 64.5% | 0 |
| June 2025 | 25 | 25 | 100.0% | 0 |
| September 2025 | 29 | 29 | 93.1% | 0 |
| October 2025 | 25 | 25 | 76.0% | 0 |
| April 2026 | 1 | 1 | 100.0% | 0 |
| May 2026 | 20 | 20 | 95.0% | 0 |