WN1918
WN1918 (Southwest Airlines) is a multi-stop service on 42 routes, busiest Denver to Grand Rapids. Of 677 departures recorded from October 2024 to July 2026, 76.9% left on time, according to the US BTS.
- On-time departures76.9%of 677 flights
- Average delay10.0 min
- July 20265▼ 91.8%vs July 2025
- Cancelled0.7%
- Legs flown under this number42
according to the US BTS · Oct 12, 2024 → Jul 26, 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 | 27 | 32 | ▲ 18.5% |
| February | 24 | 25 | ▲ 4.2% |
| March | 50 | 4 | ▼ 92.0% |
| April | 35 | 33 | ▼ 5.7% |
| May | 31 | 46 | ▲ 48.4% |
| June | 56 | 7 | ▼ 87.5% |
| July | 61 | 5 | ▼ 91.8% |
| August | 48 | – | – |
| September | 47 | – | – |
| October | 32 | – | in progress |
| November | 23 | – | – |
| December | 26 | – | – |
| Year to date (Jan–Jul) | 284 | 152 | ▼ 46.5% |
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 | 69.2% | 82.8% | ▲ 19.5% |
| February | 75.0% | 84.0% | ▲ 12.0% |
| March | 88.0% | 75.0% | ▼ 14.8% |
| April | 80.0% | 81.8% | ▲ 2.3% |
| May | 74.2% | 65.2% | ▼ 12.1% |
| June | 89.1% | 85.7% | ▼ 3.8% |
| July | 91.8% | 80.0% | ▼ 12.9% |
| August | 68.8% | – | – |
| September | 68.1% | – | – |
| October | 59.4% | – | in progress |
| November | 69.6% | – | – |
| December | 65.4% | – | – |
| Year-to-date average (Jan–Jul) | 81.0% | 79.2% | ▼ 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 | 1 | 3 | ▲ 200.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 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 99.3% 672
- Cancelled 0.7% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 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 GRR Denver International Airport – Gerald R. Ford International Airport | 1,629 | 11.6 min | 74.1% | 58 |
| DEN BWI Denver International Airport – Baltimore/Washington International Thurgood Marshall Airport | 2,394 | 9.8 min | 78.9% | 53 |
| OKC LAS OKC Will Rogers World Airport – Harry Reid International Airport | 1,584 | 11.4 min | 70.0% | 50 |
| VPS BNA Destin-Fort Walton Beach Airport – Nashville International Airport | 628 | -5.0 min | 97.7% | 47 |
| AUS MCO Austin Bergstrom International Airport – Orlando International Airport | 1,596 | -3.7 min | 100.0% | 44 |
| MCO MHT Orlando International Airport – Manchester-Boston Regional Airport | 1,840 | 6.8 min | 76.7% | 43 |
| MDW ATL Chicago Midway International Airport – Hartsfield Jackson Atlanta International Airport | 952 | 23.7 min | 60.6% | 34 |
| SJC LAX Mineta San Jose International Airport – Los Angeles International Airport | 496 | 19.9 min | 58.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 92.3% | 0 |
| November 2024 | 26 | 26 | 76.9% | 0 |
| December 2024 | 26 | 26 | 65.4% | 0 |
| January 2025 | 27 | 26 | 69.2% | 1 |
| February 2025 | 24 | 24 | 75.0% | 0 |
| March 2025 | 50 | 50 | 88.0% | 0 |
| April 2025 | 35 | 35 | 80.0% | 0 |
| May 2025 | 31 | 31 | 74.2% | 0 |
| June 2025 | 56 | 55 | 89.1% | 1 |
| July 2025 | 61 | 61 | 91.8% | 0 |
| August 2025 | 48 | 48 | 68.8% | 0 |
| September 2025 | 47 | 47 | 68.1% | 0 |
| October 2025 | 32 | 32 | 59.4% | 0 |
| November 2025 | 23 | 23 | 69.6% | 0 |
| December 2025 | 26 | 26 | 65.4% | 0 |
| January 2026 | 32 | 29 | 82.8% | 3 |
| February 2026 | 25 | 25 | 84.0% | 0 |
| March 2026 | 4 | 4 | 75.0% | 0 |
| April 2026 | 33 | 33 | 81.8% | 0 |
| May 2026 | 46 | 46 | 65.2% | 0 |
| June 2026 | 7 | 7 | 85.7% | 0 |
| July 2026 | 5 | 5 | 80.0% | 0 |