UA747
UA747 (United Airlines) is a multi-stop service on 3 routes, busiest Seattle to Chicago. Of 699 departures recorded from October 2024 to July 2026, 80.3% left on time, according to the US BTS.
- On-time departures80.3%of 699 flights
- Average delay10.3 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.4%
- Legs flown under this number3
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 | 37 | 31 | ▼ 16.2% |
| February | 28 | 28 | 0.0% |
| March | 55 | 30 | ▼ 45.5% |
| April | 30 | 29 | ▼ 3.3% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 242 | 210 | ▼ 13.2% |
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 | 83.8% | 90.3% | ▲ 7.8% |
| February | 85.7% | 89.3% | ▲ 4.2% |
| March | 76.4% | 90.0% | ▲ 17.9% |
| April | 73.3% | 82.8% | ▲ 12.9% |
| May | 77.4% | 87.1% | ▲ 12.5% |
| June | 44.8% | 83.3% | ▲ 85.9% |
| July | 40.0% | 77.4% | ▲ 93.6% |
| August | 83.9% | – | – |
| September | 90.0% | – | – |
| October | 90.3% | – | in progress |
| November | 82.8% | – | – |
| December | 74.2% | – | – |
| Year-to-date average (Jan–Jul) | 68.8% | 85.7% | ▲ 24.7% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 0 | ▼ 100.0% |
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 99.6% 696
- Cancelled 0.4% 3
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA ORD Seattle–Tacoma International Airport – Chicago O'Hare International Airport | 2,762 | 10.1 min | 80.9% | 656 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 44 | 44 | 88.6% | 0 |
| January 2025 | 37 | 37 | 83.8% | 0 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 55 | 55 | 76.4% | 0 |
| April 2025 | 30 | 30 | 73.3% | 0 |
| May 2025 | 31 | 31 | 77.4% | 0 |
| June 2025 | 30 | 29 | 44.8% | 1 |
| July 2025 | 31 | 30 | 40.0% | 1 |
| August 2025 | 31 | 31 | 83.9% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 29 | 82.8% | 1 |
| December 2025 | 31 | 31 | 74.2% | 0 |
| January 2026 | 31 | 31 | 90.3% | 0 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 30 | 30 | 90.0% | 0 |
| April 2026 | 29 | 29 | 82.8% | 0 |
| May 2026 | 31 | 31 | 87.1% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 31 | 77.4% | 0 |