WN555
WN555 (Southwest Airlines) is a multi-stop service on 36 routes, busiest Burbank to Las Vegas. Of 731 departures recorded from October 2024 to July 2026, 74.9% left on time, according to the US BTS.
- On-time departures74.9%of 731 flights
- Average delay13.5 min
- July 202628▼ 17.6%vs July 2025
- Cancelled1.4%
- Legs flown under this number36
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 36 | 25 | ▼ 30.6% |
| March | 26 | 27 | ▲ 3.8% |
| April | 39 | 29 | ▼ 25.6% |
| May | 43 | 31 | ▼ 27.9% |
| June | 36 | 26 | ▼ 27.8% |
| July | 34 | 28 | ▼ 17.6% |
| August | 35 | – | – |
| September | 34 | – | – |
| October | 62 | – | in progress |
| November | 36 | – | – |
| December | 41 | – | – |
| Year to date (Jan–Jul) | 245 | 197 | ▼ 19.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 80.0% | 70.0% | ▼ 12.5% |
| February | 85.7% | 56.0% | ▼ 34.7% |
| March | 84.6% | 70.4% | ▼ 16.8% |
| April | 82.9% | 82.8% | ▼ 0.1% |
| May | 88.4% | 54.8% | ▼ 37.9% |
| June | 61.1% | 50.0% | ▼ 18.2% |
| July | 58.8% | 59.3% | ▲ 0.7% |
| August | 68.6% | – | – |
| September | 70.6% | – | – |
| October | 82.3% | – | in progress |
| November | 77.8% | – | – |
| December | 75.6% | – | – |
| Year-to-date average (Jan–Jul) | 77.4% | 63.3% | ▼ 18.1% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 1 | 0.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 4 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 2 | ▼ 66.7% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.6% 721
- Cancelled 1.4% 10
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BUR LAS Hollywood Burbank/Bob Hope Airport – Harry Reid International Airport | 359 | 1.7 min | 90.1% | 105 |
| HOU MCI William P. Hobby Airport – Kansas City International Airport | 1,075 | 16.5 min | 67.2% | 58 |
| SFO LAS San Francisco International Airport – Harry Reid International Airport | 665 | 31.2 min | 63.6% | 55 |
| BNA MCO Nashville International Airport – Orlando International Airport | 993 | 18.2 min | 70.4% | 55 |
| AUS DEN Austin Bergstrom International Airport – Denver International Airport | 1,249 | 28.0 min | 58.2% | 55 |
| PHX SAN Phoenix Sky Harbor International Airport – San Diego International Airport | 489 | -3.4 min | 100.0% | 39 |
| SMF SEA Sacramento International Airport – Seattle–Tacoma International Airport | 975 | 23.7 min | 35.3% | 34 |
| BUR DEN Hollywood Burbank/Bob Hope Airport – Denver International Airport | 1,366 | 2.2 min | 85.3% | 34 |
| ABQ LAX Albuquerque International Sunport – Los Angeles International Airport | 1,088 | 22.0 min | 67.7% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 28 | 96.4% | 1 |
| December 2024 | 32 | 31 | 90.3% | 1 |
| January 2025 | 31 | 30 | 80.0% | 1 |
| February 2025 | 36 | 35 | 85.7% | 1 |
| March 2025 | 26 | 26 | 84.6% | 0 |
| April 2025 | 39 | 35 | 82.9% | 4 |
| May 2025 | 43 | 43 | 88.4% | 0 |
| June 2025 | 36 | 36 | 61.1% | 0 |
| July 2025 | 34 | 34 | 58.8% | 0 |
| August 2025 | 35 | 35 | 68.6% | 0 |
| September 2025 | 34 | 34 | 70.6% | 0 |
| October 2025 | 62 | 62 | 82.3% | 0 |
| November 2025 | 36 | 36 | 77.8% | 0 |
| December 2025 | 41 | 41 | 75.6% | 0 |
| January 2026 | 31 | 30 | 70.0% | 1 |
| February 2026 | 25 | 25 | 56.0% | 0 |
| March 2026 | 27 | 27 | 70.4% | 0 |
| April 2026 | 29 | 29 | 82.8% | 0 |
| May 2026 | 31 | 31 | 54.8% | 0 |
| June 2026 | 26 | 26 | 50.0% | 0 |
| July 2026 | 28 | 27 | 59.3% | 1 |