WN4118
WN4118 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Montrose to Denver. Of 337 departures recorded from October 2024 to July 2026, 81.0% left on time, according to the US BTS.
- On-time departures81.0%of 337 flights
- Average delay8.2 min
- July 202631
- Cancelled0.0%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 24 | ▲ 2,300.0% |
| February | 4 | 34 | ▲ 750.0% |
| March | 2 | 5 | ▲ 150.0% |
| April | 15 | 22 | ▲ 46.7% |
| May | 23 | 26 | ▲ 13.0% |
| June | 2 | 30 | ▲ 1,400.0% |
| July | – | 31 | – |
| August | 23 | – | – |
| September | 26 | – | – |
| October | 19 | – | in progress |
| November | 21 | – | – |
| December | 16 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 0.0% | 95.8% | – |
| February | 75.0% | 79.4% | ▲ 5.9% |
| March | 100.0% | 40.0% | ▼ 60.0% |
| April | 60.0% | 95.5% | ▲ 59.1% |
| May | 52.2% | 100.0% | ▲ 91.7% |
| June | 100.0% | 76.7% | ▼ 23.3% |
| July | – | 96.8% | – |
| August | 91.3% | – | – |
| September | 100.0% | – | – |
| October | 63.2% | – | in progress |
| November | 47.6% | – | – |
| December | 75.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 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 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 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% 337
- Cancelled 0.0% 0
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MTJ DEN Montrose Regional Airport – Denver International Airport | 316 | 10.3 min | 86.2% | 58 |
| LAX SMF Los Angeles International Airport – Sacramento International Airport | 600 | 6.9 min | 86.8% | 53 |
| TUS SAN Tucson International Airport – San Diego International Airport | 591 | -4.2 min | 98.0% | 49 |
| PHX TUL Phoenix Sky Harbor International Airport – Tulsa International Airport | 1,501 | -0.2 min | 97.6% | 42 |
| BWI STL Baltimore/Washington International Thurgood Marshall Airport – St. Louis Lambert International Airport | 1,185 | 17.9 min | 57.5% | 40 |
| SAT DAL San Antonio International Airport – Dallas Love Field | 399 | 18.7 min | 59.0% | 39 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 9 | 9 | 100.0% | 0 |
| November 2024 | 2 | 2 | 100.0% | 0 |
| December 2024 | 2 | 2 | 50.0% | 0 |
| January 2025 | 1 | 1 | 0.0% | 0 |
| February 2025 | 4 | 4 | 75.0% | 0 |
| March 2025 | 2 | 2 | 100.0% | 0 |
| April 2025 | 15 | 15 | 60.0% | 0 |
| May 2025 | 23 | 23 | 52.2% | 0 |
| June 2025 | 2 | 2 | 100.0% | 0 |
| August 2025 | 23 | 23 | 91.3% | 0 |
| September 2025 | 26 | 26 | 100.0% | 0 |
| October 2025 | 19 | 19 | 63.2% | 0 |
| November 2025 | 21 | 21 | 47.6% | 0 |
| December 2025 | 16 | 16 | 75.0% | 0 |
| January 2026 | 24 | 24 | 95.8% | 0 |
| February 2026 | 34 | 34 | 79.4% | 0 |
| March 2026 | 5 | 5 | 40.0% | 0 |
| April 2026 | 22 | 22 | 95.5% | 0 |
| May 2026 | 26 | 26 | 100.0% | 0 |
| June 2026 | 30 | 30 | 76.7% | 0 |
| July 2026 | 31 | 31 | 96.8% | 0 |