UA356
UA356 (United Airlines) is a multi-stop service on 18 routes, busiest Chicago to Atlanta. Of 1,181 departures recorded from October 2024 to July 2026, 82.8% left on time, according to the US BTS.
- On-time departures82.8%of 1,181 flights
- Average delay9.9 min
- July 202662▲ 0.0%vs July 2025
- Cancelled1.3%
- 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 | 52 | 31 | ▼ 40.4% |
| February | 52 | 43 | ▼ 17.3% |
| March | 51 | 57 | ▲ 11.8% |
| April | 75 | 60 | ▼ 20.0% |
| May | 41 | 62 | ▲ 51.2% |
| June | 59 | 60 | ▲ 1.7% |
| July | 62 | 62 | 0.0% |
| August | 62 | – | – |
| September | 54 | – | – |
| October | 41 | – | in progress |
| November | 80 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 392 | 375 | ▼ 4.3% |
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 | 94.0% | 67.7% | ▼ 27.9% |
| February | 88.5% | 88.4% | ▼ 0.1% |
| March | 76.5% | 78.2% | ▲ 2.2% |
| April | 68.5% | 83.1% | ▲ 21.3% |
| May | 95.1% | 87.1% | ▼ 8.4% |
| June | 81.4% | 93.3% | ▲ 14.7% |
| July | 83.9% | 79.7% | ▼ 5.0% |
| August | 82.0% | – | – |
| September | 94.4% | – | – |
| October | 75.6% | – | in progress |
| November | 85.5% | – | – |
| December | 66.7% | – | – |
| Year-to-date average (Jan–Jul) | 84.0% | 82.5% | ▼ 1.8% |
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 | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 2 | 1 | ▼ 50.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 3 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 4 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 6 | ▲ 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 98.7% 1,166
- Cancelled 1.3% 15
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 ATL Chicago O'Hare International Airport – Hartsfield Jackson Atlanta International Airport | 976 | 13.3 min | 77.7% | 497 |
| PHX ORD Phoenix Sky Harbor International Airport – Chicago O'Hare International Airport | 2,313 | 3.5 min | 92.7% | 167 |
| MSP ORD Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Chicago O'Hare International Airport | 537 | 0.3 min | 91.5% | 129 |
| ONT ORD Ontario International Airport – Chicago O'Hare International Airport | 2,730 | 4.1 min | 86.5% | 89 |
| SJC ORD Mineta San Jose International Airport – Chicago O'Hare International Airport | 2,937 | -1.3 min | 95.9% | 74 |
| ORD EWR Chicago O'Hare International Airport – Newark Liberty International Airport | 1,154 | 27.0 min | 61.1% | 36 |
| ORD DCA Chicago O'Hare International Airport – Ronald Reagan Washington National Airport | 983 | 14.8 min | 76.5% | 34 |
| ORD BNA Chicago O'Hare International Airport – Nashville International Airport | 660 | 3.7 min | 90.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 49 | 49 | 89.8% | 0 |
| November 2024 | 59 | 59 | 76.3% | 0 |
| December 2024 | 36 | 36 | 77.8% | 0 |
| January 2025 | 52 | 50 | 94.0% | 2 |
| February 2025 | 52 | 52 | 88.5% | 0 |
| March 2025 | 51 | 51 | 76.5% | 0 |
| April 2025 | 75 | 73 | 68.5% | 2 |
| May 2025 | 41 | 41 | 95.1% | 0 |
| June 2025 | 59 | 59 | 81.4% | 0 |
| July 2025 | 62 | 62 | 83.9% | 0 |
| August 2025 | 62 | 61 | 82.0% | 1 |
| September 2025 | 54 | 54 | 94.4% | 0 |
| October 2025 | 41 | 41 | 75.6% | 0 |
| November 2025 | 80 | 76 | 85.5% | 4 |
| December 2025 | 33 | 33 | 66.7% | 0 |
| January 2026 | 31 | 31 | 67.7% | 0 |
| February 2026 | 43 | 43 | 88.4% | 0 |
| March 2026 | 57 | 55 | 78.2% | 2 |
| April 2026 | 60 | 59 | 83.1% | 1 |
| May 2026 | 62 | 62 | 87.1% | 0 |
| June 2026 | 60 | 60 | 93.3% | 0 |
| July 2026 | 62 | 59 | 79.7% | 3 |