WN1148
WN1148 (Southwest Airlines) is a multi-stop service on 31 routes, busiest New York to Denver. Of 676 departures recorded from October 2024 to July 2026, 80.5% left on time, according to the US BTS.
- On-time departures80.5%of 676 flights
- Average delay9.9 min
- July 202619▼ 55.8%vs July 2025
- Cancelled0.6%
- Legs flown under this number31
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 | 31 | 36 | ▲ 16.1% |
| February | 28 | 39 | ▲ 39.3% |
| March | 31 | 28 | ▼ 9.7% |
| April | 30 | 29 | ▼ 3.3% |
| May | 31 | 30 | ▼ 3.2% |
| June | 42 | 19 | ▼ 54.8% |
| July | 43 | 19 | ▼ 55.8% |
| August | 33 | – | – |
| September | 30 | – | – |
| October | 27 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 236 | 200 | ▼ 15.3% |
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 | 96.8% | 90.9% | ▼ 6.1% |
| February | 96.4% | 94.9% | ▼ 1.6% |
| March | 90.3% | 85.7% | ▼ 5.1% |
| April | 93.3% | 65.5% | ▼ 29.8% |
| May | 83.9% | 40.0% | ▼ 52.3% |
| June | 90.5% | 63.2% | ▼ 30.2% |
| July | 100.0% | 68.4% | ▼ 31.6% |
| August | 84.4% | – | – |
| September | 76.7% | – | – |
| October | 59.3% | – | in progress |
| November | 75.9% | – | – |
| December | 54.8% | – | – |
| Year-to-date average (Jan–Jul) | 93.0% | 72.7% | ▼ 21.9% |
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 | 3 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 3 |
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% 672
- Cancelled 0.6% 4
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LGA DEN LaGuardia Airport – Denver International Airport | 2,600 | 6.0 min | 91.1% | 123 |
| BOS BNA Boston Logan International Airport – Nashville International Airport | 1,514 | -0.8 min | 98.3% | 60 |
| MCO SJU Orlando International Airport – Luis Munoz Marin International Airport | 1,913 | 8.7 min | 87.9% | 58 |
| PHX TPA Phoenix Sky Harbor International Airport – Tampa International Airport | 2,872 | 19.2 min | 66.7% | 45 |
| DAL MCO Dallas Love Field – Orlando International Airport | 1,564 | 5.3 min | 92.5% | 42 |
| AUS SMF Austin Bergstrom International Airport – Sacramento International Airport | 2,380 | 11.3 min | 73.8% | 42 |
| HOU MSY William P. Hobby Airport – Louis Armstrong New Orleans International Airport | 485 | 17.9 min | 69.7% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 28 | 28 | 57.1% | 0 |
| November 2024 | 31 | 31 | 80.7% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 31 | 31 | 96.8% | 0 |
| February 2025 | 28 | 28 | 96.4% | 0 |
| March 2025 | 31 | 31 | 90.3% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 42 | 42 | 90.5% | 0 |
| July 2025 | 43 | 43 | 100.0% | 0 |
| August 2025 | 33 | 32 | 84.4% | 1 |
| September 2025 | 30 | 30 | 76.7% | 0 |
| October 2025 | 27 | 27 | 59.3% | 0 |
| November 2025 | 29 | 29 | 75.9% | 0 |
| December 2025 | 31 | 31 | 54.8% | 0 |
| January 2026 | 36 | 33 | 90.9% | 3 |
| February 2026 | 39 | 39 | 94.9% | 0 |
| March 2026 | 28 | 28 | 85.7% | 0 |
| April 2026 | 29 | 29 | 65.5% | 0 |
| May 2026 | 30 | 30 | 40.0% | 0 |
| June 2026 | 19 | 19 | 63.2% | 0 |
| July 2026 | 19 | 19 | 68.4% | 0 |