UA398
UA398 (United Airlines) is a multi-stop service on 13 routes, busiest Cleveland to Chicago. Of 624 departures recorded from October 2024 to May 2026, 91.3% left on time, according to the US BTS.
- On-time departures91.3%of 624 flights
- Average delay3.2 min
- May 202620▼ 35.5%vs May 2025
- Cancelled1.0%
- Legs flown under this number13
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 29 | ▼ 6.5% |
| February | 28 | 26 | ▼ 7.1% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 20 | ▼ 35.5% |
| June | 48 | – | – |
| July | 31 | – | – |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 24 | – | – |
| December | 31 | – | – |
| Year to date (Jan–May) | 151 | 136 | ▼ 9.9% |
according to the US BTS · October 2024 → May 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 93.6% | 75.9% | ▼ 18.9% |
| February | 100.0% | 96.2% | ▼ 3.8% |
| March | 90.3% | 96.6% | ▲ 6.9% |
| April | 96.7% | 96.7% | 0.0% |
| May | 96.8% | 100.0% | ▲ 3.3% |
| June | 95.8% | – | – |
| July | 96.8% | – | – |
| August | 86.7% | – | – |
| September | 96.7% | – | – |
| October | 90.0% | – | in progress |
| November | 65.2% | – | – |
| December | 63.3% | – | – |
| Year-to-date average (Jan–May) | 95.5% | 93.0% | ▼ 2.5% |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
The most recent periods17 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 | – | – |
| July | 0 | – | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–May) | 0 | 2 |
according to the US BTS · October 2024 → May 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 99.0% 618
- Cancelled 1.0% 6
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 20, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| CLE ORD Cleveland Hopkins International Airport – Chicago O'Hare International Airport | 507 | 0.4 min | 95.8% | 354 |
| ORD LGA Chicago O'Hare International Airport – LaGuardia Airport | 1,177 | 16.2 min | 70.9% | 89 |
| EWR CLE Newark Liberty International Airport – Cleveland Hopkins International Airport | 649 | -6.3 min | 96.9% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 50 | 50 | 92.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 31 | 31 | 96.8% | 0 |
| January 2025 | 31 | 31 | 93.6% | 0 |
| February 2025 | 28 | 28 | 100.0% | 0 |
| March 2025 | 31 | 31 | 90.3% | 0 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 48 | 48 | 95.8% | 0 |
| July 2025 | 31 | 31 | 96.8% | 0 |
| August 2025 | 31 | 30 | 86.7% | 1 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 31 | 30 | 90.0% | 1 |
| November 2025 | 24 | 23 | 65.2% | 1 |
| December 2025 | 31 | 30 | 63.3% | 1 |
| January 2026 | 29 | 29 | 75.9% | 0 |
| February 2026 | 26 | 26 | 96.2% | 0 |
| March 2026 | 31 | 29 | 96.6% | 2 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 20 | 20 | 100.0% | 0 |