WN1816
WN1816 (Southwest Airlines) is a multi-stop service on 36 routes, busiest Denver to San Jose. Of 697 departures recorded from October 2024 to July 2026, 71.6% left on time, according to the US BTS.
- On-time departures71.6%of 697 flights
- Average delay16.1 min
- July 202613▼ 58.1%vs July 2025
- Cancelled0.4%
- Legs flown under this number36
according to the US BTS · Oct 12, 2024 → Jul 29, 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 | 31 | 32 | ▲ 3.2% |
| February | 36 | 28 | ▼ 22.2% |
| March | 42 | 39 | ▼ 7.1% |
| April | 32 | 32 | 0.0% |
| May | 32 | 31 | ▼ 3.1% |
| June | 30 | 14 | ▼ 53.3% |
| July | 31 | 13 | ▼ 58.1% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 47 | – | in progress |
| November | 38 | – | – |
| December | 45 | – | – |
| Year to date (Jan–Jul) | 234 | 189 | ▼ 19.2% |
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 | 80.7% | 93.8% | ▲ 16.2% |
| February | 91.7% | 100.0% | ▲ 9.1% |
| March | 52.5% | 53.9% | ▲ 2.6% |
| April | 78.1% | 65.6% | ▼ 16.0% |
| May | 96.9% | 67.7% | ▼ 30.1% |
| June | 40.0% | 42.9% | ▲ 7.1% |
| July | 48.4% | 38.5% | ▼ 20.5% |
| August | 70.4% | – | – |
| September | 76.9% | – | – |
| October | 66.0% | – | in progress |
| November | 68.4% | – | – |
| December | 62.2% | – | – |
| Year-to-date average (Jan–Jul) | 69.7% | 66.0% | ▼ 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 | 1 | – |
| March | 2 | 0 | ▼ 100.0% |
| April | 0 | 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) | 2 | 1 | ▼ 50.0% |
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 99.6% 694
- Cancelled 0.4% 3
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN SJC Denver International Airport – Mineta San Jose International Airport | 1,522 | 9.5 min | 84.2% | 101 |
| BNA DJT Nashville International Airport – President Donald J. Trump International Airport | 1,221 | 28.8 min | 64.1% | 64 |
| HNL SMF Daniel K. Inouye International Airport – Sacramento International Airport | 3,960 | 0.8 min | 96.5% | 58 |
| SAT MSY San Antonio International Airport – Louis Armstrong New Orleans International Airport | 794 | -1.3 min | 93.1% | 58 |
| DEN BNA Denver International Airport – Nashville International Airport | 1,628 | 13.2 min | 70.7% | 58 |
| BWI MHT Baltimore/Washington International Thurgood Marshall Airport – Manchester-Boston Regional Airport | 606 | 8.0 min | 74.5% | 51 |
| BWI STL Baltimore/Washington International Thurgood Marshall Airport – St. Louis Lambert International Airport | 1,185 | 51.9 min | 41.5% | 41 |
| TPA DEN Tampa International Airport – Denver International Airport | 2,423 | 38.9 min | 42.4% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 100.0% | 0 |
| November 2024 | 35 | 35 | 85.7% | 0 |
| December 2024 | 39 | 39 | 84.6% | 0 |
| January 2025 | 31 | 31 | 80.7% | 0 |
| February 2025 | 36 | 36 | 91.7% | 0 |
| March 2025 | 42 | 40 | 52.5% | 2 |
| April 2025 | 32 | 32 | 78.1% | 0 |
| May 2025 | 32 | 32 | 96.9% | 0 |
| June 2025 | 30 | 30 | 40.0% | 0 |
| July 2025 | 31 | 31 | 48.4% | 0 |
| August 2025 | 27 | 27 | 70.4% | 0 |
| September 2025 | 26 | 26 | 76.9% | 0 |
| October 2025 | 47 | 47 | 66.0% | 0 |
| November 2025 | 38 | 38 | 68.4% | 0 |
| December 2025 | 45 | 45 | 62.2% | 0 |
| January 2026 | 32 | 32 | 93.8% | 0 |
| February 2026 | 28 | 27 | 100.0% | 1 |
| March 2026 | 39 | 39 | 53.9% | 0 |
| April 2026 | 32 | 32 | 65.6% | 0 |
| May 2026 | 31 | 31 | 67.7% | 0 |
| June 2026 | 14 | 14 | 42.9% | 0 |
| July 2026 | 13 | 13 | 38.5% | 0 |