UA1448
UA1448 (United Airlines) is a multi-stop service on 17 routes, busiest Chicago to Buffalo. Of 936 departures recorded from October 2024 to July 2026, 85.5% left on time, according to the US BTS.
- On-time departures85.5%of 936 flights
- Average delay11.0 min
- July 202662▲ 21.6%vs July 2025
- Cancelled1.0%
- 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 | 31 | 0.0% |
| February | 44 | 45 | ▲ 2.3% |
| March | 61 | 47 | ▼ 23.0% |
| April | 42 | 85 | ▲ 102.4% |
| May | 41 | 62 | ▲ 51.2% |
| June | 30 | 36 | ▲ 20.0% |
| July | 51 | 62 | ▲ 21.6% |
| August | 40 | – | – |
| September | 30 | – | – |
| October | 56 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 300 | 368 | ▲ 22.7% |
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 | 83.9% | 93.1% | ▲ 11.0% |
| February | 79.6% | 93.3% | ▲ 17.3% |
| March | 90.2% | 80.4% | ▼ 10.8% |
| April | 92.7% | 80.0% | ▼ 13.7% |
| May | 87.8% | 87.1% | ▼ 0.8% |
| June | 96.7% | 65.7% | ▼ 32.0% |
| July | 86.0% | 82.0% | ▼ 4.7% |
| August | 92.1% | – | – |
| September | 90.0% | – | – |
| October | 89.3% | – | in progress |
| November | 90.0% | – | – |
| December | 80.7% | – | – |
| Year-to-date average (Jan–Jul) | 88.1% | 83.1% | ▼ 5.7% |
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 | 0 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 1 | 1 | 0.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 5 | ▲ 150.0% |
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 99.0% 927
- Cancelled 1.0% 9
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD BUF Chicago O'Hare International Airport – Buffalo Niagara International Airport | 760 | 11.9 min | 83.9% | 250 |
| SFO ORD San Francisco International Airport – Chicago O'Hare International Airport | 2,964 | -3.1 min | 94.6% | 205 |
| ORD IAH Chicago O'Hare International Airport – George Bush Intercontinental Airport | 1,491 | 11.1 min | 87.1% | 125 |
| RDU ORD Raleigh-Durham International Airport – Chicago O'Hare International Airport | 1,039 | 18.6 min | 88.9% | 117 |
| DEN SFO Denver International Airport – San Francisco International Airport | 1,553 | 19.7 min | 73.0% | 37 |
| OKC IAH OKC Will Rogers World Airport – George Bush Intercontinental Airport | 637 | -2.4 min | 94.1% | 36 |
| IAH LAS George Bush Intercontinental Airport – Harry Reid International Airport | 1,963 | 26.6 min | 52.9% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 66.7% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 31 | 31 | 83.9% | 0 |
| February 2025 | 44 | 44 | 79.6% | 0 |
| March 2025 | 61 | 61 | 90.2% | 0 |
| April 2025 | 42 | 41 | 92.7% | 1 |
| May 2025 | 41 | 41 | 87.8% | 0 |
| June 2025 | 30 | 30 | 96.7% | 0 |
| July 2025 | 51 | 50 | 86.0% | 1 |
| August 2025 | 40 | 38 | 92.1% | 2 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 56 | 56 | 89.3% | 0 |
| November 2025 | 30 | 30 | 90.0% | 0 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 31 | 29 | 93.1% | 2 |
| February 2026 | 45 | 45 | 93.3% | 0 |
| March 2026 | 47 | 46 | 80.4% | 1 |
| April 2026 | 85 | 85 | 80.0% | 0 |
| May 2026 | 62 | 62 | 87.1% | 0 |
| June 2026 | 36 | 35 | 65.7% | 1 |
| July 2026 | 62 | 61 | 82.0% | 1 |