UA587
UA587 (United Airlines) is a multi-stop service on 18 routes, busiest Chicago to Dulles. Of 1,011 departures recorded from October 2024 to July 2026, 87.1% left on time, according to the US BTS.
- On-time departures87.1%of 1,011 flights
- Average delay6.8 min
- July 202658▲ 87.1%vs July 2025
- Cancelled1.7%
- Legs flown under this number18
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 | 28 | 62 | ▲ 121.4% |
| February | 28 | 56 | ▲ 100.0% |
| March | 70 | 77 | ▲ 10.0% |
| April | 60 | 56 | ▼ 6.7% |
| May | 52 | 59 | ▲ 13.5% |
| June | 30 | 56 | ▲ 86.7% |
| July | 31 | 58 | ▲ 87.1% |
| August | 44 | – | – |
| September | 54 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 61 | – | – |
| Year to date (Jan–Jul) | 299 | 424 | ▲ 41.8% |
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 | 96.3% | 90.2% | ▼ 6.4% |
| February | 85.2% | 85.2% | 0.0% |
| March | 87.0% | 80.0% | ▼ 8.0% |
| April | 88.1% | 89.3% | ▲ 1.3% |
| May | 82.4% | 86.4% | ▲ 5.0% |
| June | 93.3% | 89.1% | ▼ 4.5% |
| July | 78.6% | 89.5% | ▲ 13.9% |
| August | 90.5% | – | – |
| September | 90.7% | – | – |
| October | 90.3% | – | in progress |
| November | 63.3% | – | – |
| December | 83.6% | – | – |
| Year-to-date average (Jan–Jul) | 87.3% | 87.1% | ▼ 0.2% |
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 | 1 | 1 | 0.0% |
| February | 1 | 2 | ▲ 100.0% |
| March | 1 | 2 | ▲ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 1 | – |
| July | 3 | 1 | ▼ 66.7% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 8 | 7 | ▼ 12.5% |
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 98.3% 994
- Cancelled 1.7% 17
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 |
|---|---|---|---|---|
| ORD IAD Chicago O'Hare International Airport – Washington Dulles International Airport | 945 | 14.2 min | 79.1% | 318 |
| SFO ORD San Francisco International Airport – Chicago O'Hare International Airport | 2,964 | 2.1 min | 92.8% | 199 |
| SNA ORD John Wayne Orange County International Airport – Chicago O'Hare International Airport | 2,772 | -1.5 min | 96.1% | 128 |
| SMF ORD Sacramento International Airport – Chicago O'Hare International Airport | 2,860 | 5.0 min | 92.2% | 77 |
| ORD IND Chicago O'Hare International Airport – Indianapolis International Airport | 286 | 15.6 min | 80.0% | 72 |
| DCA ORD Ronald Reagan Washington National Airport – Chicago O'Hare International Airport | 983 | -5.1 min | 100.0% | 48 |
| EWR ORD Newark Liberty International Airport – Chicago O'Hare International Airport | 1,154 | 1.7 min | 89.2% | 37 |
| IAH AUS George Bush Intercontinental Airport – Austin Bergstrom International Airport | 225 | -2.4 min | 93.6% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 95.8% | 0 |
| November 2024 | 23 | 23 | 100.0% | 0 |
| December 2024 | 21 | 21 | 95.2% | 0 |
| January 2025 | 28 | 27 | 96.3% | 1 |
| February 2025 | 28 | 27 | 85.2% | 1 |
| March 2025 | 70 | 69 | 87.0% | 1 |
| April 2025 | 60 | 59 | 88.1% | 1 |
| May 2025 | 52 | 51 | 82.4% | 1 |
| June 2025 | 30 | 30 | 93.3% | 0 |
| July 2025 | 31 | 28 | 78.6% | 3 |
| August 2025 | 44 | 42 | 90.5% | 2 |
| September 2025 | 54 | 54 | 90.7% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 30 | 63.3% | 0 |
| December 2025 | 61 | 61 | 83.6% | 0 |
| January 2026 | 62 | 61 | 90.2% | 1 |
| February 2026 | 56 | 54 | 85.2% | 2 |
| March 2026 | 77 | 75 | 80.0% | 2 |
| April 2026 | 56 | 56 | 89.3% | 0 |
| May 2026 | 59 | 59 | 86.4% | 0 |
| June 2026 | 56 | 55 | 89.1% | 1 |
| July 2026 | 58 | 57 | 89.5% | 1 |