UA673
UA673 (United Airlines) is a multi-stop service on 12 routes, busiest Dulles to Chicago. Of 292 departures recorded from October 2024 to April 2026, 82.9% left on time, according to the US BTS.
- On-time departures82.9%of 292 flights
- Average delay8.3 min
- April 202629▼ 3.3%vs April 2025
- Cancelled1.7%
- Legs flown under this number12
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 12 | 21 | ▲ 75.0% |
| March | 2 | 3 | ▲ 50.0% |
| April | 30 | 29 | ▼ 3.3% |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 6 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Apr) | 75 | 84 | ▲ 12.0% |
according to the US BTS · October 2024 → April 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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.7% | 93.1% | ▲ 15.4% |
| February | 83.3% | 95.0% | ▲ 14.0% |
| March | 50.0% | 66.7% | ▲ 33.3% |
| April | 96.7% | 82.8% | ▼ 14.4% |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 73.3% | – | – |
| December | 74.2% | – | – |
| Year-to-date average (Jan–Apr) | 77.7% | 84.4% | ▲ 8.7% |
according to the US BTS · October 2024 → April 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → April 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Apr) | 0 | 3 |
according to the US BTS · October 2024 → April 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 98.3% 287
- Cancelled 1.7% 5
Share of all recorded flights in the period, all legs. · Oct 27, 2024 → Apr 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IAH PHX George Bush Intercontinental Airport – Phoenix Sky Harbor International Airport | 1,620 | 12.1 min | 78.4% | 37 |
| IAD ORD Washington Dulles International Airport – Chicago O'Hare International Airport | 945 | 2.5 min | 91.7% | 37 |
| IAD BOS Washington Dulles International Airport – Boston Logan International Airport | 663 | 3.2 min | 91.4% | 37 |
| FLL SFO Fort Lauderdale Hollywood International Airport – San Francisco International Airport | 4,151 | 3.7 min | 83.8% | 37 |
| EUG DEN Eugene Airport – Denver International Airport | 1,600 | -2.1 min | 93.8% | 32 |
| DEN PIT Denver International Airport – Pittsburgh International Airport | 2,071 | 7.4 min | 81.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 5 | 5 | 100.0% | 0 |
| November 2024 | 30 | 29 | 89.7% | 1 |
| December 2024 | 31 | 30 | 63.3% | 1 |
| January 2025 | 31 | 31 | 80.7% | 0 |
| February 2025 | 12 | 12 | 83.3% | 0 |
| March 2025 | 2 | 2 | 50.0% | 0 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 6 | 6 | 100.0% | 0 |
| November 2025 | 30 | 30 | 73.3% | 0 |
| December 2025 | 31 | 31 | 74.2% | 0 |
| January 2026 | 31 | 29 | 93.1% | 2 |
| February 2026 | 21 | 20 | 95.0% | 1 |
| March 2026 | 3 | 3 | 66.7% | 0 |
| April 2026 | 29 | 29 | 82.8% | 0 |