UA1398
UA1398 (United Airlines) is a multi-stop service on 15 routes, busiest Chicago to Atlanta. Of 992 departures recorded from October 2024 to July 2026, 73.8% left on time, according to the US BTS.
- On-time departures73.8%of 992 flights
- Average delay19.8 min
- July 202661▲ 96.8%vs July 2025
- Cancelled0.8%
- Legs flown under this number15
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 | 30 | 36 | ▲ 20.0% |
| February | 24 | 45 | ▲ 87.5% |
| March | 57 | 58 | ▲ 1.8% |
| April | 60 | 30 | ▼ 50.0% |
| May | 62 | 42 | ▼ 32.3% |
| June | 52 | 60 | ▲ 15.4% |
| July | 31 | 61 | ▲ 96.8% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 56 | – | in progress |
| November | 29 | – | – |
| December | 43 | – | – |
| Year to date (Jan–Jul) | 316 | 332 | ▲ 5.1% |
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 | 70.0% | 75.0% | ▲ 7.1% |
| February | 87.5% | 84.4% | ▼ 3.5% |
| March | 70.2% | 64.3% | ▼ 8.4% |
| April | 61.7% | 73.3% | ▲ 18.9% |
| May | 67.7% | 73.8% | ▲ 9.0% |
| June | 69.2% | 65.5% | ▼ 5.4% |
| July | 80.7% | 69.0% | ▼ 14.5% |
| August | 67.2% | – | – |
| September | 88.3% | – | – |
| October | 78.6% | – | in progress |
| November | 58.6% | – | – |
| December | 83.7% | – | – |
| Year-to-date average (Jan–Jul) | 72.4% | 72.2% | ▼ 0.3% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 2 | – |
| July | 0 | 3 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 7 |
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 99.2% 984
- Cancelled 0.8% 8
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
9Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 88.0% | 0 |
| November 2024 | 29 | 29 | 89.7% | 0 |
| December 2024 | 40 | 40 | 82.5% | 0 |
| January 2025 | 30 | 30 | 70.0% | 0 |
| February 2025 | 24 | 24 | 87.5% | 0 |
| March 2025 | 57 | 57 | 70.2% | 0 |
| April 2025 | 60 | 60 | 61.7% | 0 |
| May 2025 | 62 | 62 | 67.7% | 0 |
| June 2025 | 52 | 52 | 69.2% | 0 |
| July 2025 | 31 | 31 | 80.7% | 0 |
| August 2025 | 62 | 61 | 67.2% | 1 |
| September 2025 | 60 | 60 | 88.3% | 0 |
| October 2025 | 56 | 56 | 78.6% | 0 |
| November 2025 | 29 | 29 | 58.6% | 0 |
| December 2025 | 43 | 43 | 83.7% | 0 |
| January 2026 | 36 | 36 | 75.0% | 0 |
| February 2026 | 45 | 45 | 84.4% | 0 |
| March 2026 | 58 | 56 | 64.3% | 2 |
| April 2026 | 30 | 30 | 73.3% | 0 |
| May 2026 | 42 | 42 | 73.8% | 0 |
| June 2026 | 60 | 58 | 65.5% | 2 |
| July 2026 | 61 | 58 | 69.0% | 3 |