UA2639
UA2639 (United Airlines) is a multi-stop service on 11 routes, busiest Dallas-Fort Worth to Dulles. Of 690 departures recorded from October 2024 to July 2026, 91.2% left on time, according to the US BTS.
- On-time departures91.2%of 690 flights
- Average delay4.0 min
- July 202626▼ 16.1%vs July 2025
- Cancelled1.6%
- Legs flown under this number11
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 | 20 | 46 | ▲ 130.0% |
| February | 19 | 45 | ▲ 136.8% |
| March | 29 | 54 | ▲ 86.2% |
| April | 41 | 60 | ▲ 46.3% |
| May | 31 | 47 | ▲ 51.6% |
| June | 30 | 19 | ▼ 36.7% |
| July | 31 | 26 | ▼ 16.1% |
| August | 25 | – | – |
| September | 17 | – | – |
| October | 20 | – | in progress |
| November | 22 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 201 | 297 | ▲ 47.8% |
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 | 100.0% | 95.2% | ▼ 4.8% |
| February | 100.0% | 88.9% | ▼ 11.1% |
| March | 93.1% | 90.6% | ▼ 2.7% |
| April | 85.4% | 91.7% | ▲ 7.4% |
| May | 93.6% | 91.5% | ▼ 2.2% |
| June | 89.7% | 84.2% | ▼ 6.1% |
| July | 77.4% | 92.0% | ▲ 18.8% |
| August | 83.3% | – | – |
| September | 94.1% | – | – |
| October | 90.0% | – | in progress |
| November | 86.4% | – | – |
| December | 96.8% | – | – |
| Year-to-date average (Jan–Jul) | 91.3% | 90.6% | ▼ 0.8% |
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 | 4 | ▲ 100.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 1 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 6 | ▲ 50.0% |
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 98.4% 679
- Cancelled 1.6% 11
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DFW IAD Dallas Fort Worth International Airport – Washington Dulles International Airport | 1,883 | 3.2 min | 92.7% | 545 |
| IAD FLL Washington Dulles International Airport – Fort Lauderdale Hollywood International Airport | 1,453 | 5.3 min | 86.8% | 123 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 27 | 27 | 96.3% | 0 |
| January 2025 | 20 | 18 | 100.0% | 2 |
| February 2025 | 19 | 18 | 100.0% | 1 |
| March 2025 | 29 | 29 | 93.1% | 0 |
| April 2025 | 41 | 41 | 85.4% | 0 |
| May 2025 | 31 | 31 | 93.6% | 0 |
| June 2025 | 30 | 29 | 89.7% | 1 |
| July 2025 | 31 | 31 | 77.4% | 0 |
| August 2025 | 25 | 24 | 83.3% | 1 |
| September 2025 | 17 | 17 | 94.1% | 0 |
| October 2025 | 20 | 20 | 90.0% | 0 |
| November 2025 | 22 | 22 | 86.4% | 0 |
| December 2025 | 31 | 31 | 96.8% | 0 |
| January 2026 | 46 | 42 | 95.2% | 4 |
| February 2026 | 45 | 45 | 88.9% | 0 |
| March 2026 | 54 | 53 | 90.6% | 1 |
| April 2026 | 60 | 60 | 91.7% | 0 |
| May 2026 | 47 | 47 | 91.5% | 0 |
| June 2026 | 19 | 19 | 84.2% | 0 |
| July 2026 | 26 | 25 | 92.0% | 1 |