WN1537
WN1537 (Southwest Airlines) is a multi-stop service on 42 routes, busiest Phoenix to Long Beach. Of 725 departures recorded from October 2024 to July 2026, 81.6% left on time, according to the US BTS.
- On-time departures81.6%of 725 flights
- Average delay9.2 min
- July 202614▼ 33.3%vs July 2025
- Cancelled1.1%
- Legs flown under this number42
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 | 40 | 42 | ▲ 5.0% |
| February | 40 | 51 | ▲ 27.5% |
| March | 32 | 33 | ▲ 3.1% |
| April | 53 | 12 | ▼ 77.4% |
| May | 55 | 10 | ▼ 81.8% |
| June | 30 | 11 | ▼ 63.3% |
| July | 21 | 14 | ▼ 33.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 52 | – | in progress |
| November | 40 | – | – |
| December | 46 | – | – |
| Year to date (Jan–Jul) | 271 | 173 | ▼ 36.2% |
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 | 92.5% | 80.0% | ▼ 13.5% |
| February | 76.9% | 33.3% | ▼ 56.7% |
| March | 84.4% | 75.8% | ▼ 10.2% |
| April | 84.9% | 91.7% | ▲ 8.0% |
| May | 85.5% | 70.0% | ▼ 18.1% |
| June | 80.0% | 81.8% | ▲ 2.3% |
| July | 65.0% | 85.7% | ▲ 31.9% |
| August | 90.3% | – | – |
| September | 96.7% | – | – |
| October | 90.4% | – | in progress |
| November | 83.8% | – | – |
| December | 91.3% | – | – |
| Year-to-date average (Jan–Jul) | 81.3% | 74.0% | ▼ 8.9% |
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 | 0 | 2 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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% 717
- Cancelled 1.1% 8
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX LGB Phoenix Sky Harbor International Airport – Long Beach International Airport | 570 | 5.5 min | 89.2% | 103 |
| MSY BNA Louis Armstrong New Orleans International Airport – Nashville International Airport | 759 | 2.2 min | 93.9% | 49 |
| DAL BUR Dallas Love Field – Hollywood Burbank/Bob Hope Airport | 1,996 | 3.2 min | 85.4% | 42 |
| BWI RIC Baltimore/Washington International Thurgood Marshall Airport – Richmond International Airport | 194 | 10.8 min | 73.2% | 42 |
| LAX MDW Los Angeles International Airport – Chicago Midway International Airport | 2,812 | 5.6 min | 84.4% | 32 |
| HDN DAL Yampa Valley Airport – Dallas Love Field | 1,254 | 47.1 min | 33.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 92.9% | 0 |
| November 2024 | 33 | 33 | 93.9% | 0 |
| December 2024 | 35 | 34 | 82.4% | 1 |
| January 2025 | 40 | 40 | 92.5% | 0 |
| February 2025 | 40 | 39 | 76.9% | 1 |
| March 2025 | 32 | 32 | 84.4% | 0 |
| April 2025 | 53 | 53 | 84.9% | 0 |
| May 2025 | 55 | 55 | 85.5% | 0 |
| June 2025 | 30 | 30 | 80.0% | 0 |
| July 2025 | 21 | 20 | 65.0% | 1 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 52 | 52 | 90.4% | 0 |
| November 2025 | 40 | 37 | 83.8% | 3 |
| December 2025 | 46 | 46 | 91.3% | 0 |
| January 2026 | 42 | 40 | 80.0% | 2 |
| February 2026 | 51 | 51 | 33.3% | 0 |
| March 2026 | 33 | 33 | 75.8% | 0 |
| April 2026 | 12 | 12 | 91.7% | 0 |
| May 2026 | 10 | 10 | 70.0% | 0 |
| June 2026 | 11 | 11 | 81.8% | 0 |
| July 2026 | 14 | 14 | 85.7% | 0 |