UA1938
UA1938 (United Airlines) is a multi-stop service on 6 routes, busiest Dulles to Phoenix. Of 1,005 departures recorded from October 2024 to July 2026, 85.6% left on time, according to the US BTS.
- On-time departures85.6%of 1,005 flights
- Average delay10.5 min
- July 202631▼ 45.6%vs July 2025
- Cancelled0.7%
- Legs flown under this number6
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 | 53 | 53 | 0.0% |
| February | 36 | 62 | ▲ 72.2% |
| March | 30 | 67 | ▲ 123.3% |
| April | 30 | 89 | ▲ 196.7% |
| May | 27 | 51 | ▲ 88.9% |
| June | 32 | 30 | ▼ 6.3% |
| July | 57 | 31 | ▼ 45.6% |
| August | 59 | – | – |
| September | 57 | – | – |
| October | 62 | – | in progress |
| November | 53 | – | – |
| December | 46 | – | – |
| Year to date (Jan–Jul) | 265 | 383 | ▲ 44.5% |
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 | 82.4% | 90.0% | ▲ 9.3% |
| February | 91.7% | 91.9% | ▲ 0.3% |
| March | 80.0% | 79.1% | ▼ 1.1% |
| April | 83.3% | 97.8% | ▲ 17.3% |
| May | 88.9% | 86.3% | ▼ 2.9% |
| June | 87.5% | 80.0% | ▼ 8.6% |
| July | 62.5% | 83.3% | ▲ 33.3% |
| August | 88.1% | – | – |
| September | 89.5% | – | – |
| October | 91.9% | – | in progress |
| November | 77.4% | – | – |
| December | 78.3% | – | – |
| Year-to-date average (Jan–Jul) | 82.3% | 86.9% | ▲ 5.6% |
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 | 2 | 3 | ▲ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 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) | 3 | 4 | ▲ 33.3% |
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 99.3% 998
- Cancelled 0.7% 7
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IAD PHX Washington Dulles International Airport – Phoenix Sky Harbor International Airport | 3,141 | 15.5 min | 81.4% | 574 |
| JAX IAD Jacksonville International Airport – Washington Dulles International Airport | 1,016 | 4.7 min | 90.9% | 375 |
| ORD JAX Chicago O'Hare International Airport – Jacksonville International Airport | 1,393 | -2.7 min | 95.5% | 44 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 29 | 29 | 82.8% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 53 | 51 | 82.4% | 2 |
| February 2025 | 36 | 36 | 91.7% | 0 |
| March 2025 | 30 | 30 | 80.0% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 27 | 27 | 88.9% | 0 |
| June 2025 | 32 | 32 | 87.5% | 0 |
| July 2025 | 57 | 56 | 62.5% | 1 |
| August 2025 | 59 | 59 | 88.1% | 0 |
| September 2025 | 57 | 57 | 89.5% | 0 |
| October 2025 | 62 | 62 | 91.9% | 0 |
| November 2025 | 53 | 53 | 77.4% | 0 |
| December 2025 | 46 | 46 | 78.3% | 0 |
| January 2026 | 53 | 50 | 90.0% | 3 |
| February 2026 | 62 | 62 | 91.9% | 0 |
| March 2026 | 67 | 67 | 79.1% | 0 |
| April 2026 | 89 | 89 | 97.8% | 0 |
| May 2026 | 51 | 51 | 86.3% | 0 |
| June 2026 | 30 | 30 | 80.0% | 0 |
| July 2026 | 31 | 30 | 83.3% | 1 |