UA1387
UA1387 (United Airlines) is a multi-stop service on 8 routes, busiest Chicago to San Francisco. Of 846 departures recorded from October 2024 to July 2026, 87.3% left on time, according to the US BTS.
- On-time departures87.3%of 846 flights
- Average delay5.9 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.4%
- Legs flown under this number8
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 | 31 | 31 | 0.0% |
| February | 52 | 28 | ▼ 46.2% |
| March | 57 | 58 | ▲ 1.8% |
| April | 30 | 60 | ▲ 100.0% |
| May | 31 | 51 | ▲ 64.5% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 36 | – | – |
| October | 56 | – | in progress |
| November | 59 | – | – |
| December | 32 | – | – |
| Year to date (Jan–Jul) | 262 | 289 | ▲ 10.3% |
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 | 77.4% | 90.3% | ▲ 16.7% |
| February | 92.3% | 89.3% | ▼ 3.3% |
| March | 87.7% | 89.5% | ▲ 2.0% |
| April | 90.0% | 91.7% | ▲ 1.9% |
| May | 93.3% | 82.4% | ▼ 11.8% |
| June | 93.3% | 83.3% | ▼ 10.7% |
| July | 87.1% | 83.9% | ▼ 3.7% |
| August | 80.7% | – | – |
| September | 94.4% | – | – |
| October | 87.5% | – | in progress |
| November | 77.6% | – | – |
| December | 84.4% | – | – |
| Year-to-date average (Jan–Jul) | 88.7% | 87.2% | ▼ 1.8% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 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 99.6% 843
- Cancelled 0.4% 3
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD SFO Chicago O'Hare International Airport – San Francisco International Airport | 2,964 | 8.3 min | 87.6% | 364 |
| SFO IAH San Francisco International Airport – George Bush Intercontinental Airport | 2,627 | 7.9 min | 82.4% | 257 |
| PIT SFO Pittsburgh International Airport – San Francisco International Airport | 3,618 | -2.5 min | 94.7% | 77 |
| PHX SFO Phoenix Sky Harbor International Airport – San Francisco International Airport | 1,047 | 4.5 min | 87.0% | 46 |
| SFO SEA San Francisco International Airport – Seattle–Tacoma International Airport | 1,093 | -1.1 min | 92.1% | 38 |
| MSY SFO Louis Armstrong New Orleans International Airport – San Francisco International Airport | 3,069 | -4.4 min | 94.6% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 83.3% | 0 |
| December 2024 | 31 | 31 | 87.1% | 0 |
| January 2025 | 31 | 31 | 77.4% | 0 |
| February 2025 | 52 | 52 | 92.3% | 0 |
| March 2025 | 57 | 57 | 87.7% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 30 | 93.3% | 1 |
| June 2025 | 30 | 30 | 93.3% | 0 |
| July 2025 | 31 | 31 | 87.1% | 0 |
| August 2025 | 31 | 31 | 80.7% | 0 |
| September 2025 | 36 | 36 | 94.4% | 0 |
| October 2025 | 56 | 56 | 87.5% | 0 |
| November 2025 | 59 | 58 | 77.6% | 1 |
| December 2025 | 32 | 32 | 84.4% | 0 |
| January 2026 | 31 | 31 | 90.3% | 0 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 58 | 57 | 89.5% | 1 |
| April 2026 | 60 | 60 | 91.7% | 0 |
| May 2026 | 51 | 51 | 82.4% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |