UA499
UA499 (United Airlines) is a multi-stop service on 11 routes, busiest San Francisco to Nashville. Of 1,006 departures recorded from October 2024 to July 2026, 73.7% left on time, according to the US BTS.
- On-time departures73.7%of 1,006 flights
- Average delay16.7 min
- July 202661▲ 96.8%vs July 2025
- Cancelled1.3%
- Legs flown under this number11
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 | 36 | 67 | ▲ 86.1% |
| February | 28 | 39 | ▲ 39.3% |
| March | 31 | 36 | ▲ 16.1% |
| April | 53 | 83 | ▲ 56.6% |
| May | 38 | 79 | ▲ 107.9% |
| June | 30 | 57 | ▲ 90.0% |
| July | 31 | 61 | ▲ 96.8% |
| August | 31 | – | – |
| September | 36 | – | – |
| October | 62 | – | in progress |
| November | 54 | – | – |
| December | 72 | – | – |
| Year to date (Jan–Jul) | 247 | 422 | ▲ 70.9% |
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 | 94.3% | 81.5% | ▼ 13.5% |
| February | 75.0% | 79.5% | ▲ 6.0% |
| March | 83.9% | 83.3% | ▼ 0.6% |
| April | 86.8% | 69.9% | ▼ 19.5% |
| May | 46.0% | 66.2% | ▲ 44.1% |
| June | 50.0% | 66.7% | ▲ 33.3% |
| July | 83.9% | 56.9% | ▼ 32.2% |
| August | 77.4% | – | – |
| September | 88.9% | – | – |
| October | 88.3% | – | in progress |
| November | 69.8% | – | – |
| December | 77.5% | – | – |
| Year-to-date average (Jan–Jul) | 74.3% | 72.0% | ▼ 3.0% |
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 | 2 | ▲ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 2 | ▲ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 3 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 2 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 2 | 7 | ▲ 250.0% |
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 98.7% 993
- Cancelled 1.3% 13
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO BNA San Francisco International Airport – Nashville International Airport | 3,161 | 7.8 min | 83.7% | 476 |
| BNA EWR Nashville International Airport – Newark Liberty International Airport | 1,201 | 38.4 min | 53.4% | 300 |
| SEA SFO Seattle–Tacoma International Airport – San Francisco International Airport | 1,093 | 16.7 min | 62.0% | 72 |
| PHX SFO Phoenix Sky Harbor International Airport – San Francisco International Airport | 1,047 | 0.6 min | 92.9% | 56 |
| SAN SFO San Diego International Airport – San Francisco International Airport | 719 | -3.6 min | 96.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 65.0% | 0 |
| November 2024 | 24 | 24 | 54.2% | 0 |
| December 2024 | 38 | 38 | 71.1% | 0 |
| January 2025 | 36 | 35 | 94.3% | 1 |
| February 2025 | 28 | 28 | 75.0% | 0 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 53 | 53 | 86.8% | 0 |
| May 2025 | 38 | 37 | 46.0% | 1 |
| June 2025 | 30 | 30 | 50.0% | 0 |
| July 2025 | 31 | 31 | 83.9% | 0 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 36 | 36 | 88.9% | 0 |
| October 2025 | 62 | 60 | 88.3% | 2 |
| November 2025 | 54 | 53 | 69.8% | 1 |
| December 2025 | 72 | 71 | 77.5% | 1 |
| January 2026 | 67 | 65 | 81.5% | 2 |
| February 2026 | 39 | 39 | 79.5% | 0 |
| March 2026 | 36 | 36 | 83.3% | 0 |
| April 2026 | 83 | 83 | 69.9% | 0 |
| May 2026 | 79 | 77 | 66.2% | 2 |
| June 2026 | 57 | 57 | 66.7% | 0 |
| July 2026 | 61 | 58 | 56.9% | 3 |