WN2151
WN2151 (Southwest Airlines) is a multi-stop service on 24 routes, busiest Jacksonville to St Louis. Of 632 departures recorded from October 2024 to July 2026, 73.9% left on time, according to the US BTS.
- On-time departures73.9%of 632 flights
- Average delay12.9 min
- July 202631▲ 29.2%vs July 2025
- Cancelled1.3%
- Legs flown under this number24
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 11 | 61 | ▲ 454.5% |
| February | 15 | 57 | ▲ 280.0% |
| March | 23 | 32 | ▲ 39.1% |
| April | 26 | 50 | ▲ 92.3% |
| May | 26 | 57 | ▲ 119.2% |
| June | 28 | 32 | ▲ 14.3% |
| July | 24 | 31 | ▲ 29.2% |
| August | 5 | – | – |
| September | – | – | – |
| October | 27 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 153 | 320 | ▲ 109.2% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.0% | 83.3% | ▲ 4.2% |
| February | 86.7% | 71.4% | ▼ 17.6% |
| March | 69.6% | 68.8% | ▼ 1.2% |
| April | 92.3% | 49.0% | ▼ 46.9% |
| May | 88.5% | 22.8% | ▼ 74.2% |
| June | 100.0% | 87.5% | ▼ 12.5% |
| July | 91.7% | 87.1% | ▼ 5.0% |
| August | 60.0% | – | – |
| September | – | – | – |
| October | 85.2% | – | in progress |
| November | 88.9% | – | – |
| December | 64.5% | – | – |
| Year-to-date average (Jan–Jul) | 87.0% | 67.1% | ▼ 22.8% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 1 | 0.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 3 | 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 98.7% 624
- Cancelled 1.3% 8
Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 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 |
|---|---|---|---|---|
| JAX STL Jacksonville International Airport – St. Louis Lambert International Airport | 1,213 | 12.3 min | 79.0% | 82 |
| ITO HNL Hilo International Airport – Daniel K. Inouye International Airport | 349 | 6.0 min | 87.9% | 58 |
| LAS DCA Harry Reid International Airport – Ronald Reagan Washington National Airport | 3,354 | 20.1 min | 60.7% | 58 |
| SMF LAS Sacramento International Airport – Harry Reid International Airport | 639 | 2.5 min | 94.3% | 53 |
| MDW BUR Chicago Midway International Airport – Hollywood Burbank/Bob Hope Airport | 2,794 | 4.2 min | 92.0% | 50 |
| HOU ECP William P. Hobby Airport – Northwest Florida Beaches International Airport | 916 | 25.2 min | 36.0% | 50 |
| ONT DAL Ontario International Airport – Dallas Love Field | 1,927 | 5.6 min | 95.4% | 44 |
| MDW DCA Chicago Midway International Airport – Ronald Reagan Washington National Airport | 964 | 35.2 min | 32.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 8 | 8 | 100.0% | 0 |
| November 2024 | 28 | 28 | 85.7% | 0 |
| December 2024 | 31 | 31 | 74.2% | 0 |
| January 2025 | 11 | 10 | 80.0% | 1 |
| February 2025 | 15 | 15 | 86.7% | 0 |
| March 2025 | 23 | 23 | 69.6% | 0 |
| April 2025 | 26 | 26 | 92.3% | 0 |
| May 2025 | 26 | 26 | 88.5% | 0 |
| June 2025 | 28 | 26 | 100.0% | 2 |
| July 2025 | 24 | 24 | 91.7% | 0 |
| August 2025 | 5 | 5 | 60.0% | 0 |
| October 2025 | 27 | 27 | 85.2% | 0 |
| November 2025 | 29 | 27 | 88.9% | 2 |
| December 2025 | 31 | 31 | 64.5% | 0 |
| January 2026 | 61 | 60 | 83.3% | 1 |
| February 2026 | 57 | 56 | 71.4% | 1 |
| March 2026 | 32 | 32 | 68.8% | 0 |
| April 2026 | 50 | 49 | 49.0% | 1 |
| May 2026 | 57 | 57 | 22.8% | 0 |
| June 2026 | 32 | 32 | 87.5% | 0 |
| July 2026 | 31 | 31 | 87.1% | 0 |