WN4210
WN4210 (Southwest Airlines) is a multi-stop service on 15 routes, busiest Phoenix to Dallas. Of 318 departures recorded from October 2024 to July 2026, 73.7% left on time, according to the US BTS.
- On-time departures73.7%of 318 flights
- Average delay14.0 min
- July 202623▼ 34.3%vs July 2025
- Cancelled0.6%
- Legs flown under this number15
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | – | – |
| February | 10 | 10 | 0.0% |
| March | 18 | 12 | ▼ 33.3% |
| April | 27 | 23 | ▼ 14.8% |
| May | 31 | 26 | ▼ 16.1% |
| June | 34 | 30 | ▼ 11.8% |
| July | 35 | 23 | ▼ 34.3% |
| August | 5 | – | – |
| September | – | – | – |
| October | 18 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | – | – |
| February | 60.0% | 40.0% | ▼ 33.3% |
| March | 88.9% | 75.0% | ▼ 15.6% |
| April | 92.6% | 95.7% | ▲ 3.3% |
| May | 61.3% | 100.0% | ▲ 63.2% |
| June | 71.9% | 53.3% | ▼ 25.8% |
| July | 80.0% | 43.5% | ▼ 45.7% |
| August | 40.0% | – | – |
| September | – | – | – |
| October | 88.9% | – | 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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| 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 99.4% 316
- Cancelled 0.6% 2
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX DAL Phoenix Sky Harbor International Airport – Dallas Love Field | 1,412 | 10.7 min | 75.0% | 61 |
| BWI DJT Baltimore/Washington International Thurgood Marshall Airport – President Donald J. Trump International Airport | 1,425 | 19.0 min | 72.4% | 58 |
| SJC AUS Mineta San Jose International Airport – Austin Bergstrom International Airport | 2,372 | 33.6 min | 46.0% | 50 |
| BOS BWI Boston Logan International Airport – Baltimore/Washington International Thurgood Marshall Airport | 594 | -4.5 min | 100.0% | 50 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 8 | 8 | 50.0% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 2 | 2 | 50.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| February 2025 | 10 | 10 | 60.0% | 0 |
| March 2025 | 18 | 18 | 88.9% | 0 |
| April 2025 | 27 | 27 | 92.6% | 0 |
| May 2025 | 31 | 31 | 61.3% | 0 |
| June 2025 | 34 | 32 | 71.9% | 2 |
| July 2025 | 35 | 35 | 80.0% | 0 |
| August 2025 | 5 | 5 | 40.0% | 0 |
| October 2025 | 18 | 18 | 88.9% | 0 |
| November 2025 | 1 | 1 | 100.0% | 0 |
| December 2025 | 1 | 1 | 100.0% | 0 |
| February 2026 | 10 | 10 | 40.0% | 0 |
| March 2026 | 12 | 12 | 75.0% | 0 |
| April 2026 | 23 | 23 | 95.7% | 0 |
| May 2026 | 26 | 26 | 100.0% | 0 |
| June 2026 | 30 | 30 | 53.3% | 0 |
| July 2026 | 23 | 23 | 43.5% | 0 |