UA237
UA237 (United Airlines) is a multi-stop service on 19 routes, busiest Denver to Newark. Of 499 departures recorded from October 2024 to May 2026, 85.4% left on time, according to the US BTS.
- On-time departures85.4%of 499 flights
- Average delay10.5 min
- May 202620▼ 4.8%vs May 2025
- Cancelled1.2%
- Legs flown under this number19
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 34 | 31 | ▼ 8.8% |
| February | 46 | 42 | ▼ 8.7% |
| March | 38 | 35 | ▼ 7.9% |
| April | 60 | 30 | ▼ 50.0% |
| May | 21 | 20 | ▼ 4.8% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 6 | – | in progress |
| November | 24 | – | – |
| December | 31 | – | – |
| Year to date (Jan–May) | 199 | 158 | ▼ 20.6% |
according to the US BTS · October 2024 → May 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 97.1% | 86.7% | ▼ 10.7% |
| February | 78.3% | 90.5% | ▲ 15.6% |
| March | 86.8% | 85.3% | ▼ 1.8% |
| April | 79.7% | 82.1% | ▲ 3.1% |
| May | 71.4% | 90.0% | ▲ 26.0% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 83.3% | – | in progress |
| November | 73.9% | – | – |
| December | 80.7% | – | – |
| Year-to-date average (Jan–May) | 82.6% | 86.9% | ▲ 5.2% |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 1 | 2 | ▲ 100.0% |
| May | 0 | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–May) | 1 | 4 | ▲ 300.0% |
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 98.8% 493
- Cancelled 1.2% 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
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN EWR Denver International Airport – Newark Liberty International Airport | 2,576 | 6.5 min | 91.7% | 61 |
| AUS IAD Austin Bergstrom International Airport – Washington Dulles International Airport | 2,084 | 1.9 min | 86.1% | 43 |
| DEN IAD Denver International Airport – Washington Dulles International Airport | 2,332 | 3.9 min | 88.9% | 37 |
| CLT EWR Charlotte Douglas International Airport – Newark Liberty International Airport | 850 | -0.5 min | 91.9% | 37 |
| ORD CHS Chicago O'Hare International Airport – Charleston International Airport | 1,224 | 12.8 min | 75.0% | 32 |
| CLE ORD Cleveland Hopkins International Airport – Chicago O'Hare International Airport | 507 | 37.5 min | 80.7% | 32 |
| BNA ORD Nashville International Airport – Chicago O'Hare International Airport | 660 | 18.4 min | 77.4% | 32 |
| LGA DEN LaGuardia Airport – Denver International Airport | 2,600 | 19.3 min | 76.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 31 | 31 | 93.6% | 0 |
| January 2025 | 34 | 34 | 97.1% | 0 |
| February 2025 | 46 | 46 | 78.3% | 0 |
| March 2025 | 38 | 38 | 86.8% | 0 |
| April 2025 | 60 | 59 | 79.7% | 1 |
| May 2025 | 21 | 21 | 71.4% | 0 |
| October 2025 | 6 | 6 | 83.3% | 0 |
| November 2025 | 24 | 23 | 73.9% | 1 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 31 | 30 | 86.7% | 1 |
| February 2026 | 42 | 42 | 90.5% | 0 |
| March 2026 | 35 | 34 | 85.3% | 1 |
| April 2026 | 30 | 28 | 82.1% | 2 |
| May 2026 | 20 | 20 | 90.0% | 0 |