UA1117
UA1117 (United Airlines) is a multi-stop service on 23 routes, busiest Chicago to Boston. Of 739 departures recorded from October 2024 to July 2026, 87.2% left on time, according to the US BTS.
- On-time departures87.2%of 739 flights
- Average delay6.1 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.7%
- Legs flown under this number23
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 | 56 | ▲ 80.6% |
| February | 28 | 38 | ▲ 35.7% |
| March | 66 | 51 | ▼ 22.7% |
| April | 30 | 30 | 0.0% |
| May | 31 | 29 | ▼ 6.5% |
| June | 30 | 27 | ▼ 10.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 247 | 262 | ▲ 6.1% |
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 | 87.1% | 87.5% | ▲ 0.5% |
| February | 92.9% | 84.2% | ▼ 9.3% |
| March | 90.9% | 66.0% | ▼ 27.4% |
| April | 86.7% | 90.0% | ▲ 3.8% |
| May | 87.1% | 89.3% | ▲ 2.5% |
| June | 96.6% | 88.9% | ▼ 7.9% |
| July | 83.3% | 80.7% | ▼ 3.2% |
| August | 90.3% | – | – |
| September | 86.7% | – | – |
| October | 93.6% | – | in progress |
| November | 72.4% | – | – |
| December | 89.7% | – | – |
| Year-to-date average (Jan–Jul) | 89.2% | 83.8% | ▼ 6.1% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| 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 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 99.3% 734
- Cancelled 0.7% 5
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD BOS Chicago O'Hare International Airport – Boston Logan International Airport | 1,391 | 9.2 min | 82.6% | 115 |
| RDU DEN Raleigh-Durham International Airport – Denver International Airport | 2,307 | 4.2 min | 90.8% | 89 |
| ORD BDL Chicago O'Hare International Airport – Bradley International Airport | 1,257 | 0.3 min | 90.4% | 83 |
| EWR MCO Newark Liberty International Airport – Orlando International Airport | 1,511 | -5.1 min | 97.0% | 67 |
| OKC IAH OKC Will Rogers World Airport – George Bush Intercontinental Airport | 637 | 19.4 min | 78.7% | 47 |
| ORD HDN Chicago O'Hare International Airport – Yampa Valley Airport | 1,620 | 4.1 min | 78.4% | 37 |
| IAD ORD Washington Dulles International Airport – Chicago O'Hare International Airport | 945 | 3.4 min | 86.5% | 37 |
| DEN FSD Denver International Airport – Sioux Falls Regional Airport | 777 | 14.1 min | 83.8% | 37 |
| IND ORD Indianapolis International Airport – Chicago O'Hare International Airport | 286 | 3.1 min | 94.3% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 29 | 29 | 96.6% | 0 |
| December 2024 | 31 | 30 | 93.3% | 1 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 66 | 66 | 90.9% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 87.1% | 0 |
| June 2025 | 30 | 29 | 96.6% | 1 |
| July 2025 | 31 | 30 | 83.3% | 1 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 29 | 29 | 72.4% | 0 |
| December 2025 | 29 | 29 | 89.7% | 0 |
| January 2026 | 56 | 56 | 87.5% | 0 |
| February 2026 | 38 | 38 | 84.2% | 0 |
| March 2026 | 51 | 50 | 66.0% | 1 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 29 | 28 | 89.3% | 1 |
| June 2026 | 27 | 27 | 88.9% | 0 |
| July 2026 | 31 | 31 | 80.7% | 0 |