WN538
WN538 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Phoenix to Indianapolis. Of 538 departures recorded from October 2024 to March 2026, 83.4% left on time, according to the US BTS.
- On-time departures83.4%of 538 flights
- Average delay6.9 min
- March 20269▼ 71.9%vs March 2025
- Cancelled0.2%
- Legs flown under this number25
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 30 | 52 | ▲ 73.3% |
| February | 36 | 62 | ▲ 72.2% |
| March | 32 | 9 | ▼ 71.9% |
| April | 38 | – | – |
| May | 40 | – | – |
| June | 28 | – | – |
| July | 26 | – | – |
| August | 26 | – | – |
| September | 26 | – | – |
| October | 10 | – | in progress |
| November | 17 | – | – |
| December | 25 | – | – |
| Year to date (Jan–Mar) | 98 | 123 | ▲ 25.5% |
according to the US BTS · October 2024 → March 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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.3% | 84.6% | ▲ 1.5% |
| February | 86.1% | 75.8% | ▼ 12.0% |
| March | 83.9% | 88.9% | ▲ 6.0% |
| April | 79.0% | – | – |
| May | 75.0% | – | – |
| June | 78.6% | – | – |
| July | 76.9% | – | – |
| August | 88.5% | – | – |
| September | 88.5% | – | – |
| October | 40.0% | – | in progress |
| November | 100.0% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Mar) | 84.4% | 83.1% | ▼ 1.6% |
according to the US BTS · October 2024 → March 2026
Average departure delay by month
according to the US BTS · October 2024 → March 2026
Cancelled departures by month
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | – | – |
| May | 0 | – | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Mar) | 1 | 0 | ▼ 100.0% |
according to the US BTS · October 2024 → March 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 99.8% 537
- Cancelled 0.2% 1
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Mar 4, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX IND Phoenix Sky Harbor International Airport – Indianapolis International Airport | 2,390 | 6.8 min | 87.1% | 93 |
| BWI SDF Baltimore/Washington International Thurgood Marshall Airport – Louisville Muhammad Ali International Airport | 795 | 17.8 min | 67.2% | 58 |
| PHX SNA Phoenix Sky Harbor International Airport – John Wayne Orange County International Airport | 544 | 8.3 min | 80.0% | 50 |
| DAL AUS Dallas Love Field – Austin Bergstrom International Airport | 304 | -5.3 min | 100.0% | 44 |
| TUS DEN Tucson International Airport – Denver International Airport | 1,029 | 3.7 min | 95.2% | 42 |
| AUS DAL Austin Bergstrom International Airport – Dallas Love Field | 304 | 12.6 min | 71.4% | 42 |
| RDU ATL Raleigh-Durham International Airport – Hartsfield Jackson Atlanta International Airport | 572 | 6.4 min | 87.5% | 33 |
| SNA OAK John Wayne Orange County International Airport – Oakland San Francisco Bay Airport | 597 | 11.6 min | 73.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 30 | 30 | 83.3% | 0 |
| February 2025 | 36 | 36 | 86.1% | 0 |
| March 2025 | 32 | 31 | 83.9% | 1 |
| April 2025 | 38 | 38 | 79.0% | 0 |
| May 2025 | 40 | 40 | 75.0% | 0 |
| June 2025 | 28 | 28 | 78.6% | 0 |
| July 2025 | 26 | 26 | 76.9% | 0 |
| August 2025 | 26 | 26 | 88.5% | 0 |
| September 2025 | 26 | 26 | 88.5% | 0 |
| October 2025 | 10 | 10 | 40.0% | 0 |
| November 2025 | 17 | 17 | 100.0% | 0 |
| December 2025 | 25 | 25 | 100.0% | 0 |
| January 2026 | 52 | 52 | 84.6% | 0 |
| February 2026 | 62 | 62 | 75.8% | 0 |
| March 2026 | 9 | 9 | 88.9% | 0 |