UA1164
UA1164 (United Airlines) is a multi-stop service on 13 routes, busiest Portland to San Francisco. Of 736 departures recorded from October 2024 to May 2026, 88.4% left on time, according to the US BTS.
- On-time departures88.4%of 736 flights
- Average delay3.7 min
- May 202617▼ 15.0%vs May 2025
- Cancelled0.3%
- Legs flown under this number13
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 55 | 44 | ▼ 20.0% |
| February | 40 | 48 | ▲ 20.0% |
| March | 55 | 35 | ▼ 36.4% |
| April | 30 | 30 | 0.0% |
| May | 20 | 17 | ▼ 15.0% |
| June | – | – | – |
| July | – | – | – |
| August | 13 | – | – |
| September | 35 | – | – |
| October | 60 | – | in progress |
| November | 58 | – | – |
| December | 49 | – | – |
| Year to date (Jan–May) | 200 | 174 | ▼ 13.0% |
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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 96.4% | 86.1% | ▼ 10.7% |
| February | 85.0% | 81.3% | ▼ 4.4% |
| March | 98.2% | 91.4% | ▼ 6.9% |
| April | 90.0% | 73.3% | ▼ 18.5% |
| May | 95.0% | 94.1% | ▼ 0.9% |
| June | – | – | – |
| July | – | – | – |
| August | 76.9% | – | – |
| September | 73.5% | – | – |
| October | 85.0% | – | in progress |
| November | 89.7% | – | – |
| December | 89.8% | – | – |
| Year-to-date average (Jan–May) | 92.9% | 85.2% | ▼ 8.3% |
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 periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–May) | 0 | 1 |
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 99.7% 734
- Cancelled 0.3% 2
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PDX SFO Portland International Airport – San Francisco International Airport | 886 | -3.0 min | 97.8% | 274 |
| SFO LAX San Francisco International Airport – Los Angeles International Airport | 543 | 8.2 min | 80.5% | 268 |
| SFO IND San Francisco International Airport – Indianapolis International Airport | 3,120 | 13.7 min | 83.8% | 37 |
| SFO IAD San Francisco International Airport – Washington Dulles International Airport | 3,883 | 9.5 min | 86.5% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 92.5% | 0 |
| November 2024 | 60 | 60 | 90.0% | 0 |
| December 2024 | 47 | 47 | 91.5% | 0 |
| January 2025 | 55 | 55 | 96.4% | 0 |
| February 2025 | 40 | 40 | 85.0% | 0 |
| March 2025 | 55 | 55 | 98.2% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 20 | 20 | 95.0% | 0 |
| August 2025 | 13 | 13 | 76.9% | 0 |
| September 2025 | 35 | 34 | 73.5% | 1 |
| October 2025 | 60 | 60 | 85.0% | 0 |
| November 2025 | 58 | 58 | 89.7% | 0 |
| December 2025 | 49 | 49 | 89.8% | 0 |
| January 2026 | 44 | 43 | 86.1% | 1 |
| February 2026 | 48 | 48 | 81.3% | 0 |
| March 2026 | 35 | 35 | 91.4% | 0 |
| April 2026 | 30 | 30 | 73.3% | 0 |
| May 2026 | 17 | 17 | 94.1% | 0 |