WN1149
WN1149 (Southwest Airlines) is a multi-stop service on 34 routes, busiest Chicago to Houston. Of 840 departures recorded from October 2024 to July 2026, 81.8% left on time, according to the US BTS.
- On-time departures81.8%of 840 flights
- Average delay7.9 min
- July 202628▼ 17.6%vs July 2025
- Cancelled1.4%
- Legs flown under this number34
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 | 29 | ▼ 3.3% |
| February | 28 | 32 | ▲ 14.3% |
| March | 31 | 36 | ▲ 16.1% |
| April | 39 | 94 | ▲ 141.0% |
| May | 44 | 102 | ▲ 131.8% |
| June | 35 | 38 | ▲ 8.6% |
| July | 34 | 28 | ▼ 17.6% |
| August | 35 | – | – |
| September | 34 | – | – |
| October | 60 | – | in progress |
| November | 20 | – | – |
| December | 15 | – | – |
| Year to date (Jan–Jul) | 241 | 359 | ▲ 49.0% |
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 | 89.7% | 84.6% | ▼ 5.6% |
| February | 96.4% | 84.4% | ▼ 12.5% |
| March | 67.7% | 79.4% | ▲ 17.2% |
| April | 92.3% | 77.4% | ▼ 16.1% |
| May | 84.1% | 72.6% | ▼ 13.7% |
| June | 88.6% | 79.0% | ▼ 10.9% |
| July | 85.3% | 89.3% | ▲ 4.7% |
| August | 57.6% | – | – |
| September | 78.8% | – | – |
| October | 83.1% | – | in progress |
| November | 100.0% | – | – |
| December | 73.3% | – | – |
| Year-to-date average (Jan–Jul) | 86.3% | 80.9% | ▼ 6.2% |
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 | 1 | 3 | ▲ 200.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 2 | – | – |
| September | 1 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 6 | ▲ 500.0% |
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 98.6% 828
- Cancelled 1.4% 12
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 |
|---|---|---|---|---|
| MDW HOU Chicago Midway International Airport – William P. Hobby Airport | 1,510 | 1.4 min | 91.4% | 117 |
| RDU ATL Raleigh-Durham International Airport – Hartsfield Jackson Atlanta International Airport | 572 | 11.0 min | 88.3% | 60 |
| MDW PHX Chicago Midway International Airport – Phoenix Sky Harbor International Airport | 2,319 | 13.8 min | 67.3% | 58 |
| BWI BDL Baltimore/Washington International Thurgood Marshall Airport – Bradley International Airport | 455 | 2.5 min | 91.2% | 57 |
| OAK LGB Oakland San Francisco Bay Airport – Long Beach International Airport | 569 | 12.2 min | 68.0% | 50 |
| MCI LAS Kansas City International Airport – Harry Reid International Airport | 1,829 | 4.4 min | 90.0% | 50 |
| PHX DAL Phoenix Sky Harbor International Airport – Dallas Love Field | 1,412 | 5.7 min | 86.7% | 48 |
| LGB LAS Long Beach International Airport – Harry Reid International Airport | 372 | 12.5 min | 69.1% | 42 |
| SJC SAN Mineta San Jose International Airport – San Diego International Airport | 671 | 3.1 min | 90.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 28 | 28 | 92.9% | 0 |
| December 2024 | 28 | 28 | 85.7% | 0 |
| January 2025 | 30 | 29 | 89.7% | 1 |
| February 2025 | 28 | 28 | 96.4% | 0 |
| March 2025 | 31 | 31 | 67.7% | 0 |
| April 2025 | 39 | 39 | 92.3% | 0 |
| May 2025 | 44 | 44 | 84.1% | 0 |
| June 2025 | 35 | 35 | 88.6% | 0 |
| July 2025 | 34 | 34 | 85.3% | 0 |
| August 2025 | 35 | 33 | 57.6% | 2 |
| September 2025 | 34 | 33 | 78.8% | 1 |
| October 2025 | 60 | 59 | 83.1% | 1 |
| November 2025 | 20 | 19 | 100.0% | 1 |
| December 2025 | 15 | 15 | 73.3% | 0 |
| January 2026 | 29 | 26 | 84.6% | 3 |
| February 2026 | 32 | 32 | 84.4% | 0 |
| March 2026 | 36 | 34 | 79.4% | 2 |
| April 2026 | 94 | 93 | 77.4% | 1 |
| May 2026 | 102 | 102 | 72.6% | 0 |
| June 2026 | 38 | 38 | 79.0% | 0 |
| July 2026 | 28 | 28 | 89.3% | 0 |