UA1140
UA1140 (United Airlines) is a multi-stop service on 10 routes, busiest Dulles to Tampa. Of 1,021 departures recorded from October 2024 to July 2026, 82.3% left on time, according to the US BTS.
- On-time departures82.3%of 1,021 flights
- Average delay10.4 min
- July 202662▲ 0.0%vs July 2025
- Cancelled0.6%
- Legs flown under this number10
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 31 | 31 | 0.0% |
| February | 44 | 27 | ▼ 38.6% |
| March | 62 | 31 | ▼ 50.0% |
| April | 30 | 30 | 0.0% |
| May | 93 | 40 | ▼ 57.0% |
| June | 85 | 57 | ▼ 32.9% |
| July | 62 | 62 | 0.0% |
| August | 44 | – | – |
| September | 54 | – | – |
| October | 37 | – | in progress |
| November | 60 | – | – |
| December | 60 | – | – |
| Year to date (Jan–Jul) | 407 | 278 | ▼ 31.7% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 67.7% | 76.7% | ▲ 13.2% |
| February | 76.7% | 77.8% | ▲ 1.4% |
| March | 73.8% | 76.7% | ▲ 3.9% |
| April | 86.7% | 86.7% | 0.0% |
| May | 86.0% | 92.5% | ▲ 7.5% |
| June | 80.0% | 80.7% | ▲ 0.9% |
| July | 67.7% | 88.5% | ▲ 30.7% |
| August | 88.6% | – | – |
| September | 90.7% | – | – |
| October | 73.0% | – | in progress |
| November | 93.3% | – | – |
| December | 86.7% | – | – |
| Year-to-date average (Jan–Jul) | 77.0% | 82.8% | ▲ 7.6% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.4% 1,015
- Cancelled 0.6% 6
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IAD TPA Washington Dulles International Airport – Tampa International Airport | 1,307 | 14.1 min | 79.1% | 511 |
| LAX IAD Los Angeles International Airport – Washington Dulles International Airport | 3,674 | 10.3 min | 78.9% | 177 |
| SFO IAD San Francisco International Airport – Washington Dulles International Airport | 3,883 | -5.3 min | 98.6% | 72 |
| LAS IAD Harry Reid International Airport – Washington Dulles International Airport | 3,316 | 2.8 min | 93.1% | 72 |
| LAS LAX Harry Reid International Airport – Los Angeles International Airport | 380 | -4.1 min | 94.6% | 56 |
| SLC IAD Salt Lake City International Airport – Washington Dulles International Airport | 2,935 | -3.0 min | 97.3% | 37 |
| ORD IAD Chicago O'Hare International Airport – Washington Dulles International Airport | 945 | 18.9 min | 83.3% | 36 |
| IAD BNA Washington Dulles International Airport – Nashville International Airport | 871 | 33.4 min | 57.1% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 76.7% | 0 |
| December 2024 | 31 | 30 | 86.7% | 1 |
| January 2025 | 31 | 31 | 67.7% | 0 |
| February 2025 | 44 | 43 | 76.7% | 1 |
| March 2025 | 62 | 61 | 73.8% | 1 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 93 | 93 | 86.0% | 0 |
| June 2025 | 85 | 85 | 80.0% | 0 |
| July 2025 | 62 | 62 | 67.7% | 0 |
| August 2025 | 44 | 44 | 88.6% | 0 |
| September 2025 | 54 | 54 | 90.7% | 0 |
| October 2025 | 37 | 37 | 73.0% | 0 |
| November 2025 | 60 | 60 | 93.3% | 0 |
| December 2025 | 60 | 60 | 86.7% | 0 |
| January 2026 | 31 | 30 | 76.7% | 1 |
| February 2026 | 27 | 27 | 77.8% | 0 |
| March 2026 | 31 | 30 | 76.7% | 1 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 40 | 40 | 92.5% | 0 |
| June 2026 | 57 | 57 | 80.7% | 0 |
| July 2026 | 62 | 61 | 88.5% | 1 |