WN3640
WN3640 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Omaha to Phoenix. Of 258 departures recorded from October 2024 to July 2026, 69.4% left on time, according to the US BTS.
- On-time departures69.4%of 258 flights
- Average delay16.1 min
- July 20264▲ 300.0%vs July 2025
- Cancelled0.0%
- Legs flown under this number22
Recorded departures by month
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 | 6 | 13 | ▲ 116.7% |
| February | 9 | 25 | ▲ 177.8% |
| March | 20 | 29 | ▲ 45.0% |
| April | 8 | 27 | ▲ 237.5% |
| May | 5 | 26 | ▲ 420.0% |
| June | 1 | 7 | ▲ 600.0% |
| July | 1 | 4 | ▲ 300.0% |
| August | 13 | – | – |
| September | 13 | – | – |
| October | 9 | – | in progress |
| November | 6 | – | – |
| December | 11 | – | – |
| Year to date (Jan–Jul) | 50 | 131 | ▲ 162.0% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 | 83.3% | 84.6% | ▲ 1.5% |
| February | 100.0% | 56.0% | ▼ 44.0% |
| March | 80.0% | 41.4% | ▼ 48.3% |
| April | 75.0% | 85.2% | ▲ 13.6% |
| May | 80.0% | 65.4% | ▼ 18.3% |
| June | 100.0% | 85.7% | ▼ 14.3% |
| July | 100.0% | 100.0% | 0.0% |
| August | 53.9% | – | – |
| September | 100.0% | – | – |
| October | 66.7% | – | in progress |
| November | 16.7% | – | – |
| December | 36.4% | – | – |
| Year-to-date average (Jan–Jul) | 88.3% | 74.0% | ▼ 16.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 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 100.0% 258
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| OMA PHX Eppley Airfield – Phoenix Sky Harbor International Airport | 1,667 | 7.3 min | 78.0% | 50 |
| MDW SEA Chicago Midway International Airport – Seattle–Tacoma International Airport | 2,782 | 48.4 min | 37.5% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 76.9% | 0 |
| November 2024 | 7 | 7 | 85.7% | 0 |
| December 2024 | 5 | 5 | 60.0% | 0 |
| January 2025 | 6 | 6 | 83.3% | 0 |
| February 2025 | 9 | 9 | 100.0% | 0 |
| March 2025 | 20 | 20 | 80.0% | 0 |
| April 2025 | 8 | 8 | 75.0% | 0 |
| May 2025 | 5 | 5 | 80.0% | 0 |
| June 2025 | 1 | 1 | 100.0% | 0 |
| July 2025 | 1 | 1 | 100.0% | 0 |
| August 2025 | 13 | 13 | 53.9% | 0 |
| September 2025 | 13 | 13 | 100.0% | 0 |
| October 2025 | 9 | 9 | 66.7% | 0 |
| November 2025 | 6 | 6 | 16.7% | 0 |
| December 2025 | 11 | 11 | 36.4% | 0 |
| January 2026 | 13 | 13 | 84.6% | 0 |
| February 2026 | 25 | 25 | 56.0% | 0 |
| March 2026 | 29 | 29 | 41.4% | 0 |
| April 2026 | 27 | 27 | 85.2% | 0 |
| May 2026 | 26 | 26 | 65.4% | 0 |
| June 2026 | 7 | 7 | 85.7% | 0 |
| July 2026 | 4 | 4 | 100.0% | 0 |