WN938
WN938 (Southwest Airlines) is a multi-stop service on 36 routes, busiest Detroit to Nashville. Of 687 departures recorded from October 2024 to July 2026, 78.5% left on time, according to the US BTS.
- On-time departures78.5%of 687 flights
- Average delay9.4 min
- July 202646▲ 48.4%vs July 2025
- Cancelled1.2%
- Legs flown under this number36
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 21 | 31 | ▲ 47.6% |
| February | 19 | 28 | ▲ 47.4% |
| March | 30 | 27 | ▼ 10.0% |
| April | 41 | 29 | ▼ 29.3% |
| May | 41 | 31 | ▼ 24.4% |
| June | 32 | 50 | ▲ 56.3% |
| July | 31 | 46 | ▲ 48.4% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 47 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 215 | 242 | ▲ 12.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 72.2% | 74.2% | ▲ 2.7% |
| February | 89.5% | 74.1% | ▼ 17.2% |
| March | 100.0% | 51.9% | ▼ 48.2% |
| April | 90.2% | 72.4% | ▼ 19.8% |
| May | 79.5% | 71.0% | ▼ 10.7% |
| June | 96.9% | 52.0% | ▼ 46.3% |
| July | 96.8% | 52.2% | ▼ 46.1% |
| August | 90.3% | – | – |
| September | 93.3% | – | – |
| October | 59.6% | – | in progress |
| November | 90.0% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 89.3% | 64.0% | ▼ 28.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 0 | ▼ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 2 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 5 | 1 | ▼ 80.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.8% 679
- Cancelled 1.2% 8
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW BNA Detroit Metropolitan Wayne County Airport – Nashville International Airport | 735 | -0.6 min | 96.8% | 64 |
| MCI BNA Kansas City International Airport – Nashville International Airport | 790 | 0.7 min | 96.7% | 61 |
| SMF ONT Sacramento International Airport – Ontario International Airport | 627 | 11.1 min | 72.4% | 58 |
| DAL MDW Dallas Love Field – Chicago Midway International Airport | 1,277 | 5.7 min | 93.5% | 47 |
| DEN LGA Denver International Airport – LaGuardia Airport | 2,600 | 5.1 min | 88.1% | 42 |
| DAL SAT Dallas Love Field – San Antonio International Airport | 399 | 4.0 min | 90.2% | 42 |
| BWI DEN Baltimore/Washington International Thurgood Marshall Airport – Denver International Airport | 2,394 | 25.1 min | 50.0% | 42 |
| HNL PHX Daniel K. Inouye International Airport – Phoenix Sky Harbor International Airport | 4,689 | -2.2 min | 100.0% | 33 |
| BWI JAX Baltimore/Washington International Thurgood Marshall Airport – Jacksonville International Airport | 1,068 | 16.9 min | 51.6% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 21 | 21 | 90.5% | 0 |
| November 2024 | 22 | 21 | 95.2% | 1 |
| December 2024 | 18 | 18 | 77.8% | 0 |
| January 2025 | 21 | 18 | 72.2% | 3 |
| February 2025 | 19 | 19 | 89.5% | 0 |
| March 2025 | 30 | 30 | 100.0% | 0 |
| April 2025 | 41 | 41 | 90.2% | 0 |
| May 2025 | 41 | 39 | 79.5% | 2 |
| June 2025 | 32 | 32 | 96.9% | 0 |
| July 2025 | 31 | 31 | 96.8% | 0 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 47 | 47 | 59.6% | 0 |
| November 2025 | 30 | 30 | 90.0% | 0 |
| December 2025 | 31 | 30 | 100.0% | 1 |
| January 2026 | 31 | 31 | 74.2% | 0 |
| February 2026 | 28 | 27 | 74.1% | 1 |
| March 2026 | 27 | 27 | 51.9% | 0 |
| April 2026 | 29 | 29 | 72.4% | 0 |
| May 2026 | 31 | 31 | 71.0% | 0 |
| June 2026 | 50 | 50 | 52.0% | 0 |
| July 2026 | 46 | 46 | 52.2% | 0 |