WN3722
WN3722 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Boston to Nashville. Of 493 departures recorded from October 2024 to July 2026, 71.9% left on time, according to the US BTS.
- On-time departures71.9%of 493 flights
- Average delay18.4 min
- July 202626▼ 52.7%vs July 2025
- Cancelled1.0%
- 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 periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 7 | ▲ 250.0% |
| February | – | – | – |
| March | 4 | 42 | ▲ 950.0% |
| April | 1 | 33 | ▲ 3,200.0% |
| May | – | 31 | – |
| June | 50 | 30 | ▼ 40.0% |
| July | 55 | 26 | ▼ 52.7% |
| August | 28 | – | – |
| September | 21 | – | – |
| October | 56 | – | in progress |
| November | 41 | – | – |
| December | 42 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 0.0% | 57.1% | – |
| February | – | – | – |
| March | 75.0% | 85.7% | ▲ 14.3% |
| April | 100.0% | 78.8% | ▼ 21.2% |
| May | – | 54.8% | – |
| June | 56.0% | 86.2% | ▲ 53.9% |
| July | 44.4% | 100.0% | ▲ 125.0% |
| August | 50.0% | – | – |
| September | 85.7% | – | – |
| October | 83.9% | – | in progress |
| November | 76.9% | – | – |
| December | 85.4% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | 0 | 1 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
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 99.0% 488
- Cancelled 1.0% 5
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS BNA Boston Logan International Airport – Nashville International Airport | 1,514 | 21.8 min | 62.1% | 58 |
| PHX MDW Phoenix Sky Harbor International Airport – Chicago Midway International Airport | 2,319 | 7.0 min | 88.9% | 54 |
| SJU MCO Luis Munoz Marin International Airport – Orlando International Airport | 1,913 | 3.1 min | 96.2% | 53 |
| BDL BWI Bradley International Airport – Baltimore/Washington International Thurgood Marshall Airport | 455 | 48.0 min | 52.0% | 51 |
| MDW BDL Chicago Midway International Airport – Bradley International Airport | 1,246 | 30.4 min | 47.7% | 44 |
| MDW MIA Chicago Midway International Airport – Miami International Airport | 1,905 | 13.8 min | 75.0% | 40 |
| MDW LGA Chicago Midway International Airport – LaGuardia Airport | 1,164 | 29.8 min | 61.3% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 76.9% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 8 | 8 | 50.0% | 0 |
| January 2025 | 2 | 2 | 0.0% | 0 |
| March 2025 | 4 | 4 | 75.0% | 0 |
| April 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 50 | 50 | 56.0% | 0 |
| July 2025 | 55 | 54 | 44.4% | 1 |
| August 2025 | 28 | 28 | 50.0% | 0 |
| September 2025 | 21 | 21 | 85.7% | 0 |
| October 2025 | 56 | 56 | 83.9% | 0 |
| November 2025 | 41 | 39 | 76.9% | 2 |
| December 2025 | 42 | 41 | 85.4% | 1 |
| January 2026 | 7 | 7 | 57.1% | 0 |
| March 2026 | 42 | 42 | 85.7% | 0 |
| April 2026 | 33 | 33 | 78.8% | 0 |
| May 2026 | 31 | 31 | 54.8% | 0 |
| June 2026 | 30 | 29 | 86.2% | 1 |
| July 2026 | 26 | 26 | 100.0% | 0 |