WN3736
WN3736 (Southwest Airlines) is a multi-stop service on 20 routes, busiest St Louis to New York. Of 557 departures recorded from October 2024 to July 2026, 64.7% left on time, according to the US BTS.
- On-time departures64.7%of 557 flights
- Average delay20.3 min
- July 202638▲ 8.6%vs July 2025
- Cancelled1.4%
- Legs flown under this number20
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 | 31 | 4 | ▼ 87.1% |
| February | 28 | – | – |
| March | 15 | 39 | ▲ 160.0% |
| April | 23 | 43 | ▲ 87.0% |
| May | 26 | 44 | ▲ 69.2% |
| June | 34 | 39 | ▲ 14.7% |
| July | 35 | 38 | ▲ 8.6% |
| August | 8 | – | – |
| September | 4 | – | – |
| October | 22 | – | in progress |
| November | 27 | – | – |
| December | 29 | – | – |
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 | 82.8% | 75.0% | ▼ 9.4% |
| February | 74.1% | – | – |
| March | 85.7% | 69.2% | ▼ 19.2% |
| April | 90.9% | 55.8% | ▼ 38.6% |
| May | 92.0% | 47.7% | ▼ 48.1% |
| June | 55.9% | 30.8% | ▼ 44.9% |
| July | 51.4% | 31.6% | ▼ 38.6% |
| August | 75.0% | – | – |
| September | 100.0% | – | – |
| October | 95.2% | – | in progress |
| November | 84.6% | – | – |
| December | 75.9% | – | – |
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 | 2 | 0 | ▼ 100.0% |
| February | 1 | – | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 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 98.6% 549
- Cancelled 1.4% 8
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL LGA St. Louis Lambert International Airport – LaGuardia Airport | 1,426 | 14.5 min | 70.8% | 123 |
| MCO MSY Orlando International Airport – Louis Armstrong New Orleans International Airport | 886 | 27.7 min | 57.4% | 61 |
| MDW MIA Chicago Midway International Airport – Miami International Airport | 1,905 | 14.5 min | 79.3% | 59 |
| SMF PHX Sacramento International Airport – Phoenix Sky Harbor International Airport | 1,040 | 22.2 min | 55.2% | 58 |
| SLC DAL Salt Lake City International Airport – Dallas Love Field | 1,607 | 35.4 min | 35.1% | 57 |
| BUR OAK Hollywood Burbank/Bob Hope Airport – Oakland San Francisco Bay Airport | 523 | 2.0 min | 93.8% | 50 |
| SFO LAX San Francisco International Airport – Los Angeles International Airport | 543 | 14.6 min | 78.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 8 | 8 | 87.5% | 0 |
| November 2024 | 28 | 28 | 75.0% | 0 |
| December 2024 | 32 | 32 | 56.3% | 0 |
| January 2025 | 31 | 29 | 82.8% | 2 |
| February 2025 | 28 | 27 | 74.1% | 1 |
| March 2025 | 15 | 14 | 85.7% | 1 |
| April 2025 | 23 | 22 | 90.9% | 1 |
| May 2025 | 26 | 25 | 92.0% | 1 |
| June 2025 | 34 | 34 | 55.9% | 0 |
| July 2025 | 35 | 35 | 51.4% | 0 |
| August 2025 | 8 | 8 | 75.0% | 0 |
| September 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 22 | 21 | 95.2% | 1 |
| November 2025 | 27 | 26 | 84.6% | 1 |
| December 2025 | 29 | 29 | 75.9% | 0 |
| January 2026 | 4 | 4 | 75.0% | 0 |
| March 2026 | 39 | 39 | 69.2% | 0 |
| April 2026 | 43 | 43 | 55.8% | 0 |
| May 2026 | 44 | 44 | 47.7% | 0 |
| June 2026 | 39 | 39 | 30.8% | 0 |
| July 2026 | 38 | 38 | 31.6% | 0 |