WN4470
WN4470 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Dallas to San Jose. Of 632 departures recorded from October 2024 to July 2026, 81.1% left on time, according to the US BTS.
- On-time departures81.1%of 632 flights
- Average delay10.2 min
- July 202674▲ 105.6%vs July 2025
- Cancelled1.3%
- Legs flown under this number22
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 | 30 | 34 | ▲ 13.3% |
| February | 26 | 43 | ▲ 65.4% |
| March | 30 | 6 | ▼ 80.0% |
| April | 10 | 11 | ▲ 10.0% |
| May | 4 | 13 | ▲ 225.0% |
| June | 31 | 68 | ▲ 119.4% |
| July | 36 | 74 | ▲ 105.6% |
| August | 35 | – | – |
| September | 34 | – | – |
| October | 30 | – | in progress |
| November | 28 | – | – |
| December | 22 | – | – |
| Year to date (Jan–Jul) | 167 | 249 | ▲ 49.1% |
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 | 76.7% | 90.6% | ▲ 18.2% |
| February | 73.1% | 95.2% | ▲ 30.3% |
| March | 60.0% | 100.0% | ▲ 66.7% |
| April | 55.6% | 54.6% | ▼ 1.8% |
| May | 75.0% | 53.9% | ▼ 28.2% |
| June | 90.0% | 83.3% | ▼ 7.4% |
| July | 91.7% | 89.2% | ▼ 2.7% |
| August | 65.7% | – | – |
| September | 67.7% | – | – |
| October | 93.3% | – | in progress |
| November | 77.8% | – | – |
| December | 81.8% | – | – |
| Year-to-date average (Jan–Jul) | 74.6% | 81.0% | ▲ 8.6% |
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 | 0 | 2 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 1 | 2 | ▲ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 5 | ▲ 150.0% |
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 98.7% 624
- Cancelled 1.3% 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 |
|---|---|---|---|---|
| DAL SJC Dallas Love Field – Mineta San Jose International Airport | 2,329 | 17.7 min | 76.8% | 95 |
| SMF LGB Sacramento International Airport – Long Beach International Airport | 624 | 3.4 min | 90.0% | 61 |
| BWI PIT Baltimore/Washington International Thurgood Marshall Airport – Pittsburgh International Airport | 338 | -0.3 min | 96.4% | 58 |
| PHX OMA Phoenix Sky Harbor International Airport – Eppley Airfield | 1,667 | 3.1 min | 94.6% | 57 |
| PHX LAX Phoenix Sky Harbor International Airport – Los Angeles International Airport | 595 | 11.5 min | 70.2% | 57 |
| TPA ORD Tampa International Airport – Chicago O'Hare International Airport | 1,631 | 14.7 min | 82.6% | 46 |
| OMA DCA Eppley Airfield – Ronald Reagan Washington National Airport | 1,624 | 37.6 min | 60.6% | 33 |
| BNA BOS Nashville International Airport – Boston Logan International Airport | 1,514 | 22.8 min | 56.3% | 33 |
| SJC HNL Mineta San Jose International Airport – Daniel K. Inouye International Airport | 3,886 | 1.1 min | 93.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 76.9% | 0 |
| November 2024 | 26 | 26 | 84.6% | 0 |
| December 2024 | 28 | 28 | 85.7% | 0 |
| January 2025 | 30 | 30 | 76.7% | 0 |
| February 2025 | 26 | 26 | 73.1% | 0 |
| March 2025 | 30 | 30 | 60.0% | 0 |
| April 2025 | 10 | 9 | 55.6% | 1 |
| May 2025 | 4 | 4 | 75.0% | 0 |
| June 2025 | 31 | 30 | 90.0% | 1 |
| July 2025 | 36 | 36 | 91.7% | 0 |
| August 2025 | 35 | 35 | 65.7% | 0 |
| September 2025 | 34 | 34 | 67.7% | 0 |
| October 2025 | 30 | 30 | 93.3% | 0 |
| November 2025 | 28 | 27 | 77.8% | 1 |
| December 2025 | 22 | 22 | 81.8% | 0 |
| January 2026 | 34 | 32 | 90.6% | 2 |
| February 2026 | 43 | 42 | 95.2% | 1 |
| March 2026 | 6 | 6 | 100.0% | 0 |
| April 2026 | 11 | 11 | 54.6% | 0 |
| May 2026 | 13 | 13 | 53.9% | 0 |
| June 2026 | 68 | 66 | 83.3% | 2 |
| July 2026 | 74 | 74 | 89.2% | 0 |