UA2304
UA2304 (United Airlines) is a multi-stop service on 16 routes, busiest Key West to Chicago. Of 670 departures recorded from October 2024 to July 2026, 79.9% left on time, according to the US BTS.
- On-time departures79.9%of 670 flights
- Average delay14.0 min
- July 202631▲ 14.8%vs July 2025
- Cancelled2.1%
- Legs flown under this number16
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 | 31 | ▲ 3.3% |
| February | 26 | 28 | ▲ 7.7% |
| March | 48 | 55 | ▲ 14.6% |
| April | 30 | 46 | ▲ 53.3% |
| May | 18 | 31 | ▲ 72.2% |
| June | 27 | 30 | ▲ 11.1% |
| July | 27 | 31 | ▲ 14.8% |
| August | 28 | – | – |
| September | 29 | – | – |
| October | 26 | – | in progress |
| November | 21 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 206 | 252 | ▲ 22.3% |
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 | 84.6% | 83.9% | ▼ 0.9% |
| February | 84.6% | 71.4% | ▼ 15.6% |
| March | 72.3% | 59.6% | ▼ 17.6% |
| April | 66.7% | 72.7% | ▲ 9.1% |
| May | 61.1% | 80.7% | ▲ 32.0% |
| June | 100.0% | 70.0% | ▼ 30.0% |
| July | 100.0% | 66.7% | ▼ 33.3% |
| August | 96.4% | – | – |
| September | 75.9% | – | – |
| October | 84.6% | – | in progress |
| November | 100.0% | – | – |
| December | 86.2% | – | – |
| Year-to-date average (Jan–Jul) | 81.3% | 72.1% | ▼ 11.3% |
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 | 4 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 3 | ▲ 200.0% |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 6 | 0.0% |
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 97.9% 656
- Cancelled 2.1% 14
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| EYW ORD Key West International Airport – Chicago O'Hare International Airport | 2,018 | 35.3 min | 71.8% | 165 |
| EWR ATL Newark Liberty International Airport – Hartsfield Jackson Atlanta International Airport | 1,199 | -2.5 min | 95.7% | 120 |
| IAH OKC George Bush Intercontinental Airport – OKC Will Rogers World Airport | 637 | 17.8 min | 69.0% | 72 |
| IAD ORD Washington Dulles International Airport – Chicago O'Hare International Airport | 945 | 7.2 min | 81.0% | 63 |
| PSP SFO Palm Springs International Airport – San Francisco International Airport | 677 | 10.4 min | 76.2% | 43 |
| IAH PIT George Bush Intercontinental Airport – Pittsburgh International Airport | 1,798 | -7.2 min | 100.0% | 38 |
| MIA IAH Miami International Airport – George Bush Intercontinental Airport | 1,549 | -3.9 min | 88.6% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 30 | 28 | 89.3% | 2 |
| December 2024 | 29 | 29 | 89.7% | 0 |
| January 2025 | 30 | 26 | 84.6% | 4 |
| February 2025 | 26 | 26 | 84.6% | 0 |
| March 2025 | 48 | 47 | 72.3% | 1 |
| April 2025 | 30 | 30 | 66.7% | 0 |
| May 2025 | 18 | 18 | 61.1% | 0 |
| June 2025 | 27 | 27 | 100.0% | 0 |
| July 2025 | 27 | 26 | 100.0% | 1 |
| August 2025 | 28 | 28 | 96.4% | 0 |
| September 2025 | 29 | 29 | 75.9% | 0 |
| October 2025 | 26 | 26 | 84.6% | 0 |
| November 2025 | 21 | 21 | 100.0% | 0 |
| December 2025 | 29 | 29 | 86.2% | 0 |
| January 2026 | 31 | 31 | 83.9% | 0 |
| February 2026 | 28 | 28 | 71.4% | 0 |
| March 2026 | 55 | 52 | 59.6% | 3 |
| April 2026 | 46 | 44 | 72.7% | 2 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 31 | 30 | 66.7% | 1 |