UA1517
UA1517 (United Airlines) is a multi-stop service on 7 routes, busiest San Francisco to Dallas-Fort Worth. Of 680 departures recorded from October 2024 to July 2026, 73.3% left on time, according to the US BTS.
- On-time departures73.3%of 680 flights
- Average delay24.1 min
- July 202630▼ 48.3%vs July 2025
- Cancelled2.4%
- Legs flown under this number7
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 | 27 | ▼ 10.0% |
| February | 28 | 26 | ▼ 7.1% |
| March | 31 | 29 | ▼ 6.5% |
| April | 30 | 26 | ▼ 13.3% |
| May | 31 | 28 | ▼ 9.7% |
| June | 30 | 27 | ▼ 10.0% |
| July | 58 | 30 | ▼ 48.3% |
| August | 31 | – | – |
| September | 35 | – | – |
| October | 52 | – | in progress |
| November | 31 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 238 | 193 | ▼ 18.9% |
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 | 96.6% | 70.8% | ▼ 26.6% |
| February | 92.9% | 84.6% | ▼ 8.9% |
| March | 83.9% | 64.3% | ▼ 23.3% |
| April | 86.7% | 72.0% | ▼ 16.9% |
| May | 76.7% | 64.3% | ▼ 16.1% |
| June | 90.0% | 60.0% | ▼ 33.3% |
| July | 50.0% | 69.0% | ▲ 37.9% |
| August | 87.1% | – | – |
| September | 88.6% | – | – |
| October | 71.2% | – | in progress |
| November | 50.0% | – | – |
| December | 82.1% | – | – |
| Year-to-date average (Jan–Jul) | 82.4% | 69.3% | ▼ 15.9% |
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 | 1 | 3 | ▲ 200.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 2 | – |
| July | 2 | 1 | ▼ 50.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 4 | 8 | ▲ 100.0% |
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 97.6% 664
- Cancelled 2.4% 16
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO DFW San Francisco International Airport – Dallas Fort Worth International Airport | 2,352 | 9.6 min | 83.5% | 292 |
| DFW ORD Dallas Fort Worth International Airport – Chicago O'Hare International Airport | 1,291 | 32.0 min | 68.0% | 261 |
| DFW EWR Dallas Fort Worth International Airport – Newark Liberty International Airport | 2,205 | 55.9 min | 47.6% | 86 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 76.5% | 0 |
| November 2024 | 24 | 24 | 41.7% | 0 |
| December 2024 | 30 | 30 | 66.7% | 0 |
| January 2025 | 30 | 29 | 96.6% | 1 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 30 | 76.7% | 1 |
| June 2025 | 30 | 30 | 90.0% | 0 |
| July 2025 | 58 | 56 | 50.0% | 2 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 35 | 35 | 88.6% | 0 |
| October 2025 | 52 | 52 | 71.2% | 0 |
| November 2025 | 31 | 28 | 50.0% | 3 |
| December 2025 | 29 | 28 | 82.1% | 1 |
| January 2026 | 27 | 24 | 70.8% | 3 |
| February 2026 | 26 | 26 | 84.6% | 0 |
| March 2026 | 29 | 28 | 64.3% | 1 |
| April 2026 | 26 | 25 | 72.0% | 1 |
| May 2026 | 28 | 28 | 64.3% | 0 |
| June 2026 | 27 | 25 | 60.0% | 2 |
| July 2026 | 30 | 29 | 69.0% | 1 |