UA598
UA598 (United Airlines) is a multi-stop service on 19 routes, busiest Denver to New York. Of 779 departures recorded from October 2024 to July 2026, 75.8% left on time, according to the US BTS.
- On-time departures75.8%of 779 flights
- Average delay16.7 min
- July 202631▼ 45.6%vs July 2025
- Cancelled2.4%
- Legs flown under this number19
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 | 31 | 30 | ▼ 3.2% |
| February | 28 | 42 | ▲ 50.0% |
| March | 27 | 38 | ▲ 40.7% |
| April | 30 | 51 | ▲ 70.0% |
| May | 29 | 31 | ▲ 6.9% |
| June | 34 | 27 | ▼ 20.6% |
| July | 57 | 31 | ▼ 45.6% |
| August | 31 | – | – |
| September | 29 | – | – |
| October | 33 | – | in progress |
| November | 53 | – | – |
| December | 26 | – | – |
| Year to date (Jan–Jul) | 236 | 250 | ▲ 5.9% |
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 | 83.9% | 96.6% | ▲ 15.1% |
| February | 75.0% | 82.9% | ▲ 10.6% |
| March | 70.4% | 64.7% | ▼ 8.0% |
| April | 89.7% | 74.0% | ▼ 17.5% |
| May | 89.7% | 80.7% | ▼ 10.0% |
| June | 63.6% | 77.8% | ▲ 22.2% |
| July | 51.9% | 67.7% | ▲ 30.6% |
| August | 83.9% | – | – |
| September | 93.1% | – | – |
| October | 67.7% | – | in progress |
| November | 68.0% | – | – |
| December | 58.3% | – | – |
| Year-to-date average (Jan–Jul) | 74.9% | 77.8% | ▲ 3.9% |
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 | 1 | – |
| February | 0 | 1 | – |
| March | 0 | 4 | – |
| April | 1 | 1 | 0.0% |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 3 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 2 | – | in progress |
| November | 3 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 5 | 7 | ▲ 40.0% |
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 97.6% 760
- Cancelled 2.4% 19
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN LGA Denver International Airport – LaGuardia Airport | 2,600 | 15.1 min | 74.4% | 399 |
| LGA ORD LaGuardia Airport – Chicago O'Hare International Airport | 1,177 | 48.5 min | 51.6% | 101 |
| LGA IAH LaGuardia Airport – George Bush Intercontinental Airport | 2,277 | 19.5 min | 76.6% | 47 |
| EWR SFO Newark Liberty International Airport – San Francisco International Airport | 4,118 | 16.3 min | 81.1% | 37 |
| BDL DEN Bradley International Airport – Denver International Airport | 2,683 | -6.2 min | 100.0% | 37 |
| DFW EWR Dallas Fort Worth International Airport – Newark Liberty International Airport | 2,205 | 4.1 min | 90.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 83.3% | 0 |
| November 2024 | 63 | 63 | 77.8% | 0 |
| December 2024 | 34 | 34 | 88.2% | 0 |
| January 2025 | 31 | 31 | 83.9% | 0 |
| February 2025 | 28 | 28 | 75.0% | 0 |
| March 2025 | 27 | 27 | 70.4% | 0 |
| April 2025 | 30 | 29 | 89.7% | 1 |
| May 2025 | 29 | 29 | 89.7% | 0 |
| June 2025 | 34 | 33 | 63.6% | 1 |
| July 2025 | 57 | 54 | 51.9% | 3 |
| August 2025 | 31 | 31 | 83.9% | 0 |
| September 2025 | 29 | 29 | 93.1% | 0 |
| October 2025 | 33 | 31 | 67.7% | 2 |
| November 2025 | 53 | 50 | 68.0% | 3 |
| December 2025 | 26 | 24 | 58.3% | 2 |
| January 2026 | 30 | 29 | 96.6% | 1 |
| February 2026 | 42 | 41 | 82.9% | 1 |
| March 2026 | 38 | 34 | 64.7% | 4 |
| April 2026 | 51 | 50 | 74.0% | 1 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 27 | 27 | 77.8% | 0 |
| July 2026 | 31 | 31 | 67.7% | 0 |