WN2573
WN2573 (Southwest Airlines) is a multi-stop service on 28 routes, busiest San Francisco to Phoenix. Of 650 departures recorded from October 2024 to July 2026, 77.6% left on time, according to the US BTS.
- On-time departures77.6%of 650 flights
- Average delay11.2 min
- July 202622▲ 22.2%vs July 2025
- Cancelled0.6%
- Legs flown under this number28
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 | 30 | 30 | 0.0% |
| February | 28 | 18 | ▼ 35.7% |
| March | 35 | 4 | ▼ 88.6% |
| April | 67 | 24 | ▼ 64.2% |
| May | 89 | 31 | ▼ 65.2% |
| June | 21 | 23 | ▲ 9.5% |
| July | 18 | 22 | ▲ 22.2% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 23 | – | in progress |
| November | 22 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 288 | 152 | ▼ 47.2% |
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% | 89.3% | ▲ 11.6% |
| February | 92.9% | 77.8% | ▼ 16.2% |
| March | 70.6% | 75.0% | ▲ 6.2% |
| April | 80.6% | 91.7% | ▲ 13.7% |
| May | 73.0% | 90.3% | ▲ 23.7% |
| June | 81.0% | 30.4% | ▼ 62.4% |
| July | 58.8% | 22.7% | ▼ 61.4% |
| August | 96.6% | – | – |
| September | 93.3% | – | – |
| October | 47.8% | – | in progress |
| November | 90.9% | – | – |
| December | 80.0% | – | – |
| Year-to-date average (Jan–Jul) | 76.7% | 68.2% | ▼ 11.1% |
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 | 0 | 2 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.4% 646
- Cancelled 0.6% 4
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO PHX San Francisco International Airport – Phoenix Sky Harbor International Airport | 1,047 | 2.6 min | 90.9% | 99 |
| TUL HOU Tulsa International Airport – William P. Hobby Airport | 731 | 4.8 min | 94.8% | 58 |
| MSY DEN Louis Armstrong New Orleans International Airport – Denver International Airport | 1,708 | -1.6 min | 91.4% | 58 |
| BNA STL Nashville International Airport – St. Louis Lambert International Airport | 437 | 4.4 min | 84.4% | 47 |
| MDW TUL Chicago Midway International Airport – Tulsa International Airport | 938 | -0.8 min | 95.2% | 42 |
| AUS DEN Austin Bergstrom International Airport – Denver International Airport | 1,249 | 39.8 min | 19.5% | 41 |
| BUR SMF Hollywood Burbank/Bob Hope Airport – Sacramento International Airport | 577 | 1.7 min | 92.3% | 39 |
| BWI SDF Baltimore/Washington International Thurgood Marshall Airport – Louisville Muhammad Ali International Airport | 795 | 7.4 min | 87.5% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 28 | 28 | 96.4% | 0 |
| December 2024 | 28 | 28 | 82.1% | 0 |
| January 2025 | 30 | 30 | 80.0% | 0 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 35 | 34 | 70.6% | 1 |
| April 2025 | 67 | 67 | 80.6% | 0 |
| May 2025 | 89 | 89 | 73.0% | 0 |
| June 2025 | 21 | 21 | 81.0% | 0 |
| July 2025 | 18 | 17 | 58.8% | 1 |
| August 2025 | 29 | 29 | 96.6% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 23 | 23 | 47.8% | 0 |
| November 2025 | 22 | 22 | 90.9% | 0 |
| December 2025 | 30 | 30 | 80.0% | 0 |
| January 2026 | 30 | 28 | 89.3% | 2 |
| February 2026 | 18 | 18 | 77.8% | 0 |
| March 2026 | 4 | 4 | 75.0% | 0 |
| April 2026 | 24 | 24 | 91.7% | 0 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 23 | 23 | 30.4% | 0 |
| July 2026 | 22 | 22 | 22.7% | 0 |