WN2181
WN2181 (Southwest Airlines) is a multi-stop service on 38 routes, busiest Seattle to Chicago. Of 626 departures recorded from October 2024 to July 2026, 71.1% left on time, according to the US BTS.
- On-time departures71.1%of 626 flights
- Average delay16.8 min
- July 20269▼ 74.3%vs July 2025
- Cancelled1.0%
- Legs flown under this number38
according to the US BTS · Oct 14, 2024 → Jul 26, 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 | 10 | 33 | ▲ 230.0% |
| February | 2 | 28 | ▲ 1,300.0% |
| March | 26 | 54 | ▲ 107.7% |
| April | 21 | 32 | ▲ 52.4% |
| May | 19 | 27 | ▲ 42.1% |
| June | 33 | 11 | ▼ 66.7% |
| July | 35 | 9 | ▼ 74.3% |
| August | 48 | – | – |
| September | 51 | – | – |
| October | 31 | – | in progress |
| November | 55 | – | – |
| December | 39 | – | – |
| Year to date (Jan–Jul) | 146 | 194 | ▲ 32.9% |
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 | 90.0% | 93.9% | ▲ 4.4% |
| February | 50.0% | 96.4% | ▲ 92.9% |
| March | 100.0% | 31.4% | ▼ 68.6% |
| April | 95.2% | 61.3% | ▼ 35.6% |
| May | 79.0% | 77.8% | ▼ 1.5% |
| June | 45.5% | 100.0% | ▲ 120.0% |
| July | 72.7% | 100.0% | ▲ 37.5% |
| August | 54.2% | – | – |
| September | 64.7% | – | – |
| October | 100.0% | – | in progress |
| November | 63.6% | – | – |
| December | 66.7% | – | – |
| Year-to-date average (Jan–Jul) | 76.1% | 80.1% | ▲ 5.3% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 3 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 100.0% |
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 99.0% 620
- Cancelled 1.0% 6
Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 26, 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 |
|---|---|---|---|---|
| SEA MDW Seattle–Tacoma International Airport – Chicago Midway International Airport | 2,782 | -1.1 min | 96.6% | 58 |
| SAN PHX San Diego International Airport – Phoenix Sky Harbor International Airport | 489 | 15.6 min | 76.0% | 50 |
| DAL DCA Dallas Love Field – Ronald Reagan Washington National Airport | 1,902 | 20.8 min | 71.4% | 42 |
| LAS TUS Harry Reid International Airport – Tucson International Airport | 587 | 22.7 min | 63.4% | 41 |
| MDW DCA Chicago Midway International Airport – Ronald Reagan Washington National Airport | 964 | 8.0 min | 85.7% | 35 |
| ORD PHX Chicago O'Hare International Airport – Phoenix Sky Harbor International Airport | 2,313 | 56.8 min | 24.1% | 33 |
| MCI DAL Kansas City International Airport – Dallas Love Field | 743 | 9.0 min | 84.9% | 33 |
| LGB HNL Long Beach International Airport – Daniel K. Inouye International Airport | 4,130 | -3.0 min | 100.0% | 33 |
| SAT DEN San Antonio International Airport – Denver International Airport | 1,280 | -3.3 min | 100.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 92.9% | 0 |
| November 2024 | 22 | 22 | 86.4% | 0 |
| December 2024 | 26 | 26 | 53.9% | 0 |
| January 2025 | 10 | 10 | 90.0% | 0 |
| February 2025 | 2 | 2 | 50.0% | 0 |
| March 2025 | 26 | 26 | 100.0% | 0 |
| April 2025 | 21 | 21 | 95.2% | 0 |
| May 2025 | 19 | 19 | 79.0% | 0 |
| June 2025 | 33 | 33 | 45.5% | 0 |
| July 2025 | 35 | 33 | 72.7% | 2 |
| August 2025 | 48 | 48 | 54.2% | 0 |
| September 2025 | 51 | 51 | 64.7% | 0 |
| October 2025 | 31 | 31 | 100.0% | 0 |
| November 2025 | 55 | 55 | 63.6% | 0 |
| December 2025 | 39 | 39 | 66.7% | 0 |
| January 2026 | 33 | 33 | 93.9% | 0 |
| February 2026 | 28 | 28 | 96.4% | 0 |
| March 2026 | 54 | 51 | 31.4% | 3 |
| April 2026 | 32 | 31 | 61.3% | 1 |
| May 2026 | 27 | 27 | 77.8% | 0 |
| June 2026 | 11 | 11 | 100.0% | 0 |
| July 2026 | 9 | 9 | 100.0% | 0 |