WN4103
WN4103 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Dallas to Washington. Of 507 departures recorded from October 2024 to July 2026, 72.1% left on time, according to the US BTS.
- On-time departures72.1%of 507 flights
- Average delay17.0 min
- July 202617
- Cancelled1.6%
- Legs flown under this number22
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 | 27 | 30 | ▲ 11.1% |
| February | 26 | 21 | ▼ 19.2% |
| March | 31 | 26 | ▼ 16.1% |
| April | 30 | 26 | ▼ 13.3% |
| May | 32 | 25 | ▼ 21.9% |
| June | 4 | 19 | ▲ 375.0% |
| July | – | 17 | – |
| August | 27 | – | – |
| September | 30 | – | – |
| October | 1 | – | in progress |
| November | 28 | – | – |
| December | 30 | – | – |
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 | 72.7% | 89.7% | ▲ 23.3% |
| February | 23.1% | 90.0% | ▲ 289.9% |
| March | 77.4% | 88.5% | ▲ 14.3% |
| April | 73.3% | 61.5% | ▼ 16.1% |
| May | 56.3% | 32.0% | ▼ 43.1% |
| June | 100.0% | 84.2% | ▼ 15.8% |
| July | – | 82.4% | – |
| August | 55.6% | – | – |
| September | 65.5% | – | – |
| October | 100.0% | – | in progress |
| November | 100.0% | – | – |
| December | 100.0% | – | – |
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 | 5 | 1 | ▼ 80.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| 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 98.4% 499
- Cancelled 1.6% 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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DAL DCA Dallas Love Field – Ronald Reagan Washington National Airport | 1,902 | 30.1 min | 57.6% | 104 |
| PHX SMF Phoenix Sky Harbor International Airport – Sacramento International Airport | 1,040 | 21.9 min | 61.4% | 58 |
| ATL BWI Hartsfield Jackson Atlanta International Airport – Baltimore/Washington International Thurgood Marshall Airport | 928 | 25.2 min | 62.1% | 58 |
| BWI MSP Baltimore/Washington International Thurgood Marshall Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,504 | 7.4 min | 86.7% | 47 |
| SJC ONT Mineta San Jose International Airport – Ontario International Airport | 536 | -4.9 min | 100.0% | 44 |
| SAN PHX San Diego International Airport – Phoenix Sky Harbor International Airport | 489 | 44.1 min | 40.5% | 42 |
| BUR SJC Hollywood Burbank/Bob Hope Airport – Mineta San Jose International Airport | 477 | 2.8 min | 87.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 69.2% | 0 |
| November 2024 | 25 | 25 | 80.0% | 0 |
| December 2024 | 26 | 26 | 69.2% | 0 |
| January 2025 | 27 | 22 | 72.7% | 5 |
| February 2025 | 26 | 26 | 23.1% | 0 |
| March 2025 | 31 | 31 | 77.4% | 0 |
| April 2025 | 30 | 30 | 73.3% | 0 |
| May 2025 | 32 | 32 | 56.3% | 0 |
| June 2025 | 4 | 4 | 100.0% | 0 |
| August 2025 | 27 | 27 | 55.6% | 0 |
| September 2025 | 30 | 29 | 65.5% | 1 |
| October 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 28 | 28 | 100.0% | 0 |
| December 2025 | 30 | 30 | 100.0% | 0 |
| January 2026 | 30 | 29 | 89.7% | 1 |
| February 2026 | 21 | 20 | 90.0% | 1 |
| March 2026 | 26 | 26 | 88.5% | 0 |
| April 2026 | 26 | 26 | 61.5% | 0 |
| May 2026 | 25 | 25 | 32.0% | 0 |
| June 2026 | 19 | 19 | 84.2% | 0 |
| July 2026 | 17 | 17 | 82.4% | 0 |