UA1873
UA1873 (United Airlines) is a multi-stop service on 9 routes, busiest Phoenix to Dulles. Of 776 departures recorded from October 2024 to July 2026, 88.0% left on time, according to the US BTS.
- On-time departures88.0%of 776 flights
- Average delay10.0 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number9
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 | 56 | 31 | ▼ 44.6% |
| February | 56 | 28 | ▼ 50.0% |
| March | 36 | 55 | ▲ 52.8% |
| April | 26 | 48 | ▲ 84.6% |
| May | 22 | 31 | ▲ 40.9% |
| June | 17 | 30 | ▲ 76.5% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 244 | 254 | ▲ 4.1% |
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 | 85.7% | 100.0% | ▲ 16.7% |
| February | 87.5% | 96.4% | ▲ 10.2% |
| March | 71.4% | 81.8% | ▲ 14.5% |
| April | 73.1% | 95.8% | ▲ 31.1% |
| May | 90.9% | 93.6% | ▲ 2.9% |
| June | 70.6% | 86.7% | ▲ 22.8% |
| July | 83.3% | 93.3% | ▲ 12.0% |
| August | 87.1% | – | – |
| September | 86.7% | – | – |
| October | 90.3% | – | in progress |
| November | 86.7% | – | – |
| December | 93.6% | – | – |
| Year-to-date average (Jan–Jul) | 80.4% | 92.5% | ▲ 15.1% |
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 | 1 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.5% 772
- Cancelled 0.5% 4
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX IAD Phoenix Sky Harbor International Airport – Washington Dulles International Airport | 3,141 | 2.6 min | 91.6% | 347 |
| IAD BNA Washington Dulles International Airport – Nashville International Airport | 871 | 10.6 min | 86.1% | 173 |
| SAN IAD San Diego International Airport – Washington Dulles International Airport | 3,618 | 13.8 min | 87.0% | 108 |
| SEA IAD Seattle–Tacoma International Airport – Washington Dulles International Airport | 3,702 | 20.0 min | 86.8% | 54 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 50 | 50 | 92.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 45 | 45 | 86.7% | 0 |
| January 2025 | 56 | 56 | 85.7% | 0 |
| February 2025 | 56 | 56 | 87.5% | 0 |
| March 2025 | 36 | 35 | 71.4% | 1 |
| April 2025 | 26 | 26 | 73.1% | 0 |
| May 2025 | 22 | 22 | 90.9% | 0 |
| June 2025 | 17 | 17 | 70.6% | 0 |
| July 2025 | 31 | 30 | 83.3% | 1 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 30 | 86.7% | 0 |
| December 2025 | 31 | 31 | 93.6% | 0 |
| January 2026 | 31 | 30 | 100.0% | 1 |
| February 2026 | 28 | 28 | 96.4% | 0 |
| March 2026 | 55 | 55 | 81.8% | 0 |
| April 2026 | 48 | 48 | 95.8% | 0 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 31 | 30 | 93.3% | 1 |