UA2421
UA2421 (United Airlines) is a multi-stop service on 19 routes, busiest Denver to Indianapolis. Of 679 departures recorded from October 2024 to July 2026, 84.3% left on time, according to the US BTS.
- On-time departures84.3%of 679 flights
- Average delay11.0 min
- July 202630▲ 15.4%vs July 2025
- Cancelled1.3%
- 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 | 32 | 26 | ▼ 18.8% |
| February | 28 | 25 | ▼ 10.7% |
| March | 55 | 55 | 0.0% |
| April | 25 | 30 | ▲ 20.0% |
| May | 35 | 25 | ▼ 28.6% |
| June | 47 | 30 | ▼ 36.2% |
| July | 26 | 30 | ▲ 15.4% |
| August | 33 | – | – |
| September | 21 | – | – |
| October | 24 | – | in progress |
| November | 29 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 248 | 221 | ▼ 10.9% |
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 | 80.7% | 80.0% | ▼ 0.8% |
| February | 85.7% | 92.0% | ▲ 7.3% |
| March | 85.2% | 76.4% | ▼ 10.4% |
| April | 88.0% | 93.3% | ▲ 6.1% |
| May | 80.0% | 62.5% | ▼ 21.9% |
| June | 89.4% | 56.7% | ▼ 36.6% |
| July | 92.0% | 93.3% | ▲ 1.4% |
| August | 81.8% | – | – |
| September | 100.0% | – | – |
| October | 91.7% | – | in progress |
| November | 84.0% | – | – |
| December | 80.0% | – | – |
| Year-to-date average (Jan–Jul) | 85.8% | 79.2% | ▼ 7.8% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 4 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 2 | ▼ 33.3% |
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 98.7% 670
- Cancelled 1.3% 9
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
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 84.6% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 30 | 30 | 96.7% | 0 |
| January 2025 | 32 | 31 | 80.7% | 1 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 55 | 54 | 85.2% | 1 |
| April 2025 | 25 | 25 | 88.0% | 0 |
| May 2025 | 35 | 35 | 80.0% | 0 |
| June 2025 | 47 | 47 | 89.4% | 0 |
| July 2025 | 26 | 25 | 92.0% | 1 |
| August 2025 | 33 | 33 | 81.8% | 0 |
| September 2025 | 21 | 21 | 100.0% | 0 |
| October 2025 | 24 | 24 | 91.7% | 0 |
| November 2025 | 29 | 25 | 84.0% | 4 |
| December 2025 | 30 | 30 | 80.0% | 0 |
| January 2026 | 26 | 25 | 80.0% | 1 |
| February 2026 | 25 | 25 | 92.0% | 0 |
| March 2026 | 55 | 55 | 76.4% | 0 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 25 | 24 | 62.5% | 1 |
| June 2026 | 30 | 30 | 56.7% | 0 |
| July 2026 | 30 | 30 | 93.3% | 0 |