WN503
WN503 (Southwest Airlines) is a multi-stop service on 46 routes, busiest Sacramento to Santa Ana. Of 816 departures recorded from October 2024 to July 2026, 75.3% left on time, according to the US BTS.
- On-time departures75.3%of 816 flights
- Average delay12.1 min
- July 202631▲ 14.8%vs July 2025
- Cancelled1.1%
- Legs flown under this number46
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 | 44 | 16 | ▼ 63.6% |
| February | 42 | 29 | ▼ 31.0% |
| March | 33 | 38 | ▲ 15.2% |
| April | 27 | 32 | ▲ 18.5% |
| May | 27 | 31 | ▲ 14.8% |
| June | 25 | 30 | ▲ 20.0% |
| July | 27 | 31 | ▲ 14.8% |
| August | 41 | – | – |
| September | 43 | – | – |
| October | 45 | – | in progress |
| November | 52 | – | – |
| December | 67 | – | – |
| Year to date (Jan–Jul) | 225 | 207 | ▼ 8.0% |
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 | 90.5% | 87.5% | ▼ 3.3% |
| February | 85.7% | 86.2% | ▲ 0.6% |
| March | 87.5% | 50.0% | ▼ 42.9% |
| April | 96.3% | 81.3% | ▼ 15.6% |
| May | 96.2% | 96.8% | ▲ 0.6% |
| June | 60.0% | 30.0% | ▼ 50.0% |
| July | 34.6% | 30.0% | ▼ 13.3% |
| August | 73.2% | – | – |
| September | 72.1% | – | – |
| October | 86.7% | – | in progress |
| November | 80.0% | – | – |
| December | 69.7% | – | – |
| Year-to-date average (Jan–Jul) | 78.7% | 66.0% | ▼ 16.2% |
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 | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 5 | 1 | ▼ 80.0% |
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 98.9% 807
- Cancelled 1.1% 9
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SMF SNA Sacramento International Airport – John Wayne Orange County International Airport | 650 | 9.8 min | 81.0% | 58 |
| HOU BWI William P. Hobby Airport – Baltimore/Washington International Thurgood Marshall Airport | 2,003 | 3.6 min | 94.8% | 58 |
| AUS BWI Austin Bergstrom International Airport – Baltimore/Washington International Thurgood Marshall Airport | 2,156 | 38.4 min | 45.1% | 52 |
| MCI LAS Kansas City International Airport – Harry Reid International Airport | 1,829 | 0.1 min | 98.0% | 50 |
| BNA DEN Nashville International Airport – Denver International Airport | 1,628 | 29.5 min | 24.0% | 50 |
| DEN SLC Denver International Airport – Salt Lake City International Airport | 628 | 10.9 min | 75.6% | 42 |
| DAL AUS Dallas Love Field – Austin Bergstrom International Airport | 304 | 5.4 min | 90.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 75.0% | 0 |
| November 2024 | 69 | 69 | 85.5% | 0 |
| December 2024 | 43 | 43 | 83.7% | 0 |
| January 2025 | 44 | 42 | 90.5% | 2 |
| February 2025 | 42 | 42 | 85.7% | 0 |
| March 2025 | 33 | 32 | 87.5% | 1 |
| April 2025 | 27 | 27 | 96.3% | 0 |
| May 2025 | 27 | 26 | 96.2% | 1 |
| June 2025 | 25 | 25 | 60.0% | 0 |
| July 2025 | 27 | 26 | 34.6% | 1 |
| August 2025 | 41 | 41 | 73.2% | 0 |
| September 2025 | 43 | 43 | 72.1% | 0 |
| October 2025 | 45 | 45 | 86.7% | 0 |
| November 2025 | 52 | 50 | 80.0% | 2 |
| December 2025 | 67 | 66 | 69.7% | 1 |
| January 2026 | 16 | 16 | 87.5% | 0 |
| February 2026 | 29 | 29 | 86.2% | 0 |
| March 2026 | 38 | 38 | 50.0% | 0 |
| April 2026 | 32 | 32 | 81.3% | 0 |
| May 2026 | 31 | 31 | 96.8% | 0 |
| June 2026 | 30 | 30 | 30.0% | 0 |
| July 2026 | 31 | 30 | 30.0% | 1 |