UA2437
UA2437 (United Airlines) is a multi-stop service on 18 routes, busiest Sacramento to Chicago. Of 793 departures recorded from October 2024 to July 2026, 77.5% left on time, according to the US BTS.
- On-time departures77.5%of 793 flights
- Average delay16.7 min
- July 202662▲ 106.7%vs July 2025
- Cancelled0.8%
- Legs flown under this number18
according to the US BTS · Oct 13, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 23 | ▼ 25.8% |
| February | 28 | 21 | ▼ 25.0% |
| March | 25 | 56 | ▲ 124.0% |
| April | 30 | 57 | ▲ 90.0% |
| May | 31 | 79 | ▲ 154.8% |
| June | 30 | 60 | ▲ 100.0% |
| July | 30 | 62 | ▲ 106.7% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 205 | 358 | ▲ 74.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 83.3% | 78.3% | ▼ 6.1% |
| February | 78.6% | 76.2% | ▼ 3.0% |
| March | 80.0% | 65.5% | ▼ 18.2% |
| April | 86.7% | 89.5% | ▲ 3.2% |
| May | 74.2% | 82.3% | ▲ 10.9% |
| June | 56.7% | 81.7% | ▲ 44.1% |
| July | 17.2% | 84.8% | ▲ 391.6% |
| August | 71.0% | – | – |
| September | 80.0% | – | – |
| October | 64.5% | – | in progress |
| November | 90.0% | – | – |
| December | 90.3% | – | – |
| Year-to-date average (Jan–Jul) | 68.1% | 79.7% | ▲ 17.1% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 3 | ▲ 200.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 100.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.2% 787
- Cancelled 0.8% 6
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SMF ORD Sacramento International Airport – Chicago O'Hare International Airport | 2,860 | 23.4 min | 61.5% | 183 |
| ORD IAD Chicago O'Hare International Airport – Washington Dulles International Airport | 945 | 24.5 min | 78.9% | 125 |
| MCI ORD Kansas City International Airport – Chicago O'Hare International Airport | 647 | 22.0 min | 85.9% | 93 |
| SFO EWR San Francisco International Airport – Newark Liberty International Airport | 4,118 | 32.8 min | 61.8% | 55 |
| SFO SLC San Francisco International Airport – Salt Lake City International Airport | 962 | 0.2 min | 90.6% | 53 |
| SFO MSY San Francisco International Airport – Louis Armstrong New Orleans International Airport | 3,069 | 24.1 min | 73.8% | 42 |
| SAN IAH San Diego International Airport – George Bush Intercontinental Airport | 2,093 | 2.4 min | 91.9% | 37 |
| DEN PHL Denver International Airport – Philadelphia International Airport | 2,501 | 2.7 min | 89.2% | 37 |
| EWR BNA Newark Liberty International Airport – Nashville International Airport | 1,201 | 9.4 min | 80.7% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 83.3% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 29 | 29 | 79.3% | 0 |
| January 2025 | 31 | 30 | 83.3% | 1 |
| February 2025 | 28 | 28 | 78.6% | 0 |
| March 2025 | 25 | 25 | 80.0% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 74.2% | 0 |
| June 2025 | 30 | 30 | 56.7% | 0 |
| July 2025 | 30 | 29 | 17.2% | 1 |
| August 2025 | 31 | 31 | 71.0% | 0 |
| September 2025 | 30 | 30 | 80.0% | 0 |
| October 2025 | 31 | 31 | 64.5% | 0 |
| November 2025 | 30 | 30 | 90.0% | 0 |
| December 2025 | 31 | 31 | 90.3% | 0 |
| January 2026 | 23 | 23 | 78.3% | 0 |
| February 2026 | 21 | 21 | 76.2% | 0 |
| March 2026 | 56 | 55 | 65.5% | 1 |
| April 2026 | 57 | 57 | 89.5% | 0 |
| May 2026 | 79 | 79 | 82.3% | 0 |
| June 2026 | 60 | 60 | 81.7% | 0 |
| July 2026 | 62 | 59 | 84.8% | 3 |