UA1807
UA1807 (United Airlines) is a multi-stop service on 25 routes, busiest Chicago to San Francisco. Of 634 departures recorded from October 2024 to July 2026, 82.4% left on time, according to the US BTS.
- On-time departures82.4%of 634 flights
- Average delay10.4 min
- July 202622▼ 29.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number25
according to the US BTS · Oct 12, 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 | 31 | 0.0% |
| February | 26 | 27 | ▲ 3.8% |
| March | 30 | 31 | ▲ 3.3% |
| April | 26 | 30 | ▲ 15.4% |
| May | 27 | 24 | ▼ 11.1% |
| June | 30 | 21 | ▼ 30.0% |
| July | 31 | 22 | ▼ 29.0% |
| August | 31 | – | – |
| September | 36 | – | – |
| October | 50 | – | in progress |
| November | 5 | – | – |
| December | 47 | – | – |
| Year to date (Jan–Jul) | 201 | 186 | ▼ 7.5% |
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 | 90.3% | 87.1% | ▼ 3.6% |
| February | 88.5% | 92.3% | ▲ 4.4% |
| March | 80.0% | 72.4% | ▼ 9.5% |
| April | 88.0% | 86.7% | ▼ 1.5% |
| May | 51.9% | 79.2% | ▲ 52.7% |
| June | 79.3% | 81.0% | ▲ 2.1% |
| July | 77.4% | 77.3% | ▼ 0.2% |
| August | 77.4% | – | – |
| September | 86.1% | – | – |
| October | 82.0% | – | in progress |
| November | 80.0% | – | – |
| December | 91.5% | – | – |
| Year-to-date average (Jan–Jul) | 79.3% | 82.3% | ▲ 3.7% |
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 | 0 | 0 | – |
| February | 0 | 1 | – |
| March | 0 | 2 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
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% 629
- Cancelled 0.8% 5
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD SFO Chicago O'Hare International Airport – San Francisco International Airport | 2,964 | 3.1 min | 94.0% | 83 |
| SFO AUS San Francisco International Airport – Austin Bergstrom International Airport | 2,417 | 6.6 min | 81.5% | 65 |
| DCA IAH Ronald Reagan Washington National Airport – George Bush Intercontinental Airport | 1,942 | 15.4 min | 79.2% | 49 |
| LGA ORD LaGuardia Airport – Chicago O'Hare International Airport | 1,177 | 48.6 min | 66.7% | 46 |
| DEN OGG Denver International Airport – Kahului International Airport | 5,309 | 13.8 min | 71.8% | 41 |
| LAX LAS Los Angeles International Airport – Harry Reid International Airport | 380 | -1.9 min | 97.3% | 37 |
| ORD RSW Chicago O'Hare International Airport – Southwest Florida International Airport | 1,807 | 6.0 min | 84.4% | 32 |
| SFO PHX San Francisco International Airport – Phoenix Sky Harbor International Airport | 1,047 | 11.6 min | 67.7% | 31 |
| DEN LGA Denver International Airport – LaGuardia Airport | 2,600 | 13.8 min | 80.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 100.0% | 0 |
| November 2024 | 28 | 28 | 89.3% | 0 |
| December 2024 | 31 | 31 | 71.0% | 0 |
| January 2025 | 31 | 31 | 90.3% | 0 |
| February 2025 | 26 | 26 | 88.5% | 0 |
| March 2025 | 30 | 30 | 80.0% | 0 |
| April 2025 | 26 | 25 | 88.0% | 1 |
| May 2025 | 27 | 27 | 51.9% | 0 |
| June 2025 | 30 | 29 | 79.3% | 1 |
| July 2025 | 31 | 31 | 77.4% | 0 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 36 | 36 | 86.1% | 0 |
| October 2025 | 50 | 50 | 82.0% | 0 |
| November 2025 | 5 | 5 | 80.0% | 0 |
| December 2025 | 47 | 47 | 91.5% | 0 |
| January 2026 | 31 | 31 | 87.1% | 0 |
| February 2026 | 27 | 26 | 92.3% | 1 |
| March 2026 | 31 | 29 | 72.4% | 2 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 24 | 24 | 79.2% | 0 |
| June 2026 | 21 | 21 | 81.0% | 0 |
| July 2026 | 22 | 22 | 77.3% | 0 |