WN1901
WN1901 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Sacramento to Denver. Of 655 departures recorded from October 2024 to July 2026, 78.9% left on time, according to the US BTS.
- On-time departures78.9%of 655 flights
- Average delay10.6 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number27
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 | 12 | 47 | ▲ 291.7% |
| February | 43 | 37 | ▼ 14.0% |
| March | 32 | 33 | ▲ 3.1% |
| April | 21 | 30 | ▲ 42.9% |
| May | 17 | 31 | ▲ 82.4% |
| June | 29 | 30 | ▲ 3.4% |
| July | 31 | 31 | 0.0% |
| August | 24 | – | – |
| September | 22 | – | – |
| October | 49 | – | in progress |
| November | 34 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 185 | 239 | ▲ 29.2% |
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 | 75.0% | 91.3% | ▲ 21.7% |
| February | 60.5% | 83.8% | ▲ 38.5% |
| March | 90.6% | 84.4% | ▼ 6.9% |
| April | 90.0% | 50.0% | ▼ 44.4% |
| May | 70.6% | 61.3% | ▼ 13.2% |
| June | 82.8% | 70.0% | ▼ 15.4% |
| July | 67.7% | 83.9% | ▲ 23.8% |
| August | 87.5% | – | – |
| September | 100.0% | – | – |
| October | 87.8% | – | in progress |
| November | 91.2% | – | – |
| December | 90.9% | – | – |
| Year-to-date average (Jan–Jul) | 76.7% | 74.9% | ▼ 2.3% |
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 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| 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) | 1 | 2 | ▲ 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 99.2% 650
- Cancelled 0.8% 5
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 |
|---|---|---|---|---|
| SMF DEN Sacramento International Airport – Denver International Airport | 1,460 | 16.3 min | 69.2% | 118 |
| DEN LIT Denver International Airport – Bill & Hillary Clinton National Airport/Adams Field | 1,239 | 3.1 min | 95.3% | 64 |
| HDN DEN Yampa Valley Airport – Denver International Airport | 227 | 16.4 min | 77.6% | 58 |
| DEN LAS Denver International Airport – Harry Reid International Airport | 1,009 | 32.6 min | 53.5% | 58 |
| DEN OKC Denver International Airport – OKC Will Rogers World Airport | 796 | 9.2 min | 79.3% | 54 |
| HNL LIH Daniel K. Inouye International Airport – Lihue Airport | 163 | -3.8 min | 100.0% | 33 |
| LAX DAL Los Angeles International Airport – Dallas Love Field | 2,002 | 11.9 min | 75.0% | 33 |
| CLT MDW Charlotte Douglas International Airport – Chicago Midway International Airport | 940 | 13.5 min | 84.4% | 33 |
| BUR DEN Hollywood Burbank/Bob Hope Airport – Denver International Airport | 1,366 | -5.0 min | 100.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 94.7% | 0 |
| November 2024 | 32 | 30 | 70.0% | 2 |
| December 2024 | 18 | 18 | 38.9% | 0 |
| January 2025 | 12 | 12 | 75.0% | 0 |
| February 2025 | 43 | 43 | 60.5% | 0 |
| March 2025 | 32 | 32 | 90.6% | 0 |
| April 2025 | 21 | 20 | 90.0% | 1 |
| May 2025 | 17 | 17 | 70.6% | 0 |
| June 2025 | 29 | 29 | 82.8% | 0 |
| July 2025 | 31 | 31 | 67.7% | 0 |
| August 2025 | 24 | 24 | 87.5% | 0 |
| September 2025 | 22 | 22 | 100.0% | 0 |
| October 2025 | 49 | 49 | 87.8% | 0 |
| November 2025 | 34 | 34 | 91.2% | 0 |
| December 2025 | 33 | 33 | 90.9% | 0 |
| January 2026 | 47 | 46 | 91.3% | 1 |
| February 2026 | 37 | 37 | 83.8% | 0 |
| March 2026 | 33 | 32 | 84.4% | 1 |
| April 2026 | 30 | 30 | 50.0% | 0 |
| May 2026 | 31 | 31 | 61.3% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |