UA278
UA278 (United Airlines) is a multi-stop service on 17 routes, busiest Baltimore to Los Angeles. Of 421 departures recorded from October 2024 to May 2026, 82.7% left on time, according to the US BTS.
- On-time departures82.7%of 421 flights
- Average delay8.3 min
- May 202620▼ 4.8%vs May 2025
- Cancelled1.2%
- Legs flown under this number17
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 26 | ▲ 4.0% |
| February | 28 | 28 | 0.0% |
| March | 7 | 31 | ▲ 342.9% |
| April | 30 | 30 | 0.0% |
| May | 21 | 20 | ▼ 4.8% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 29 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 17 | – | – |
| Year to date (Jan–May) | 111 | 135 | ▲ 21.6% |
according to the US BTS · October 2024 → May 2026
On-time departures by month
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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 66.7% | 84.6% | ▲ 26.9% |
| February | 78.6% | 96.4% | ▲ 22.7% |
| March | 85.7% | 90.3% | ▲ 5.4% |
| April | 86.7% | 96.7% | ▲ 11.5% |
| May | 90.0% | 90.0% | 0.0% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 96.6% | – | – |
| October | 73.3% | – | in progress |
| November | 62.1% | – | – |
| December | 70.6% | – | – |
| Year-to-date average (Jan–May) | 81.5% | 91.6% | ▲ 12.4% |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–May) | 2 | 0 | ▼ 100.0% |
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 98.8% 416
- Cancelled 1.2% 5
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BWI LAX Baltimore/Washington International Thurgood Marshall Airport – Los Angeles International Airport | 3,740 | 3.1 min | 92.1% | 76 |
| IAH PHX George Bush Intercontinental Airport – Phoenix Sky Harbor International Airport | 1,620 | 3.5 min | 86.5% | 74 |
| IAH EGE George Bush Intercontinental Airport – Eagle County Regional Airport | 1,504 | 13.6 min | 66.7% | 37 |
| SFO LAX San Francisco International Airport – Los Angeles International Airport | 543 | 9.1 min | 77.1% | 36 |
| EWR BOS Newark Liberty International Airport – Boston Logan International Airport | 322 | 38.3 min | 58.8% | 36 |
| BNA EWR Nashville International Airport – Newark Liberty International Airport | 1,201 | 11.5 min | 87.5% | 32 |
| DFW SFO Dallas Fort Worth International Airport – San Francisco International Airport | 2,352 | 7.9 min | 83.9% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 29 | 75.9% | 1 |
| December 2024 | 18 | 18 | 66.7% | 0 |
| January 2025 | 25 | 24 | 66.7% | 1 |
| February 2025 | 28 | 28 | 78.6% | 0 |
| March 2025 | 7 | 7 | 85.7% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 21 | 20 | 90.0% | 1 |
| September 2025 | 29 | 29 | 96.6% | 0 |
| October 2025 | 31 | 30 | 73.3% | 1 |
| November 2025 | 30 | 29 | 62.1% | 1 |
| December 2025 | 17 | 17 | 70.6% | 0 |
| January 2026 | 26 | 26 | 84.6% | 0 |
| February 2026 | 28 | 28 | 96.4% | 0 |
| March 2026 | 31 | 31 | 90.3% | 0 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 20 | 20 | 90.0% | 0 |