WN1678
WN1678 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Charleston to St Louis. Of 521 departures recorded from October 2024 to July 2026, 74.7% left on time, according to the US BTS.
- On-time departures74.7%of 521 flights
- Average delay12.8 min
- July 202614▼ 60.0%vs July 2025
- Cancelled0.6%
- Legs flown under this number25
according to the US BTS · Oct 13, 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 | 12 | 26 | ▲ 116.7% |
| February | 19 | 27 | ▲ 42.1% |
| March | 29 | 31 | ▲ 6.9% |
| April | 7 | 30 | ▲ 328.6% |
| May | 1 | 31 | ▲ 3,000.0% |
| June | 30 | 14 | ▼ 53.3% |
| July | 35 | 14 | ▼ 60.0% |
| August | 32 | – | – |
| September | 30 | – | – |
| October | 48 | – | in progress |
| November | 28 | – | – |
| December | 25 | – | – |
| Year to date (Jan–Jul) | 133 | 173 | ▲ 30.1% |
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% | 92.3% | ▲ 23.1% |
| February | 52.6% | 77.8% | ▲ 47.8% |
| March | 79.3% | 56.7% | ▼ 28.5% |
| April | 57.1% | 93.3% | ▲ 63.3% |
| May | 100.0% | 90.3% | ▼ 9.7% |
| June | 53.3% | 78.6% | ▲ 47.3% |
| July | 68.6% | 69.2% | ▲ 1.0% |
| August | 83.9% | – | – |
| September | 93.3% | – | – |
| October | 54.2% | – | in progress |
| November | 85.7% | – | – |
| December | 64.0% | – | – |
| Year-to-date average (Jan–Jul) | 69.4% | 79.7% | ▲ 14.9% |
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 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 2 |
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 99.4% 518
- Cancelled 0.6% 3
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| CHS STL Charleston International Airport – St. Louis Lambert International Airport | 1,135 | 24.6 min | 65.6% | 61 |
| HNL KOA Daniel K. Inouye International Airport – Ellison Onizuka Kona International Airport at Keāhole | 263 | -1.6 min | 93.1% | 58 |
| BWI CMH Baltimore/Washington International Thurgood Marshall Airport – John Glenn Columbus International Airport | 541 | 0.4 min | 89.5% | 58 |
| OAK SNA Oakland San Francisco Bay Airport – John Wayne Orange County International Airport | 597 | 4.4 min | 85.7% | 42 |
| STL DEN St. Louis Lambert International Airport – Denver International Airport | 1,236 | -0.6 min | 89.2% | 37 |
| MDW SDF Chicago Midway International Airport – Louisville Muhammad Ali International Airport | 437 | 17.0 min | 56.3% | 33 |
| MCO PHX Orlando International Airport – Phoenix Sky Harbor International Airport | 2,969 | 11.2 min | 90.9% | 33 |
| HOU LAS William P. Hobby Airport – Harry Reid International Airport | 1,985 | 6.7 min | 78.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 65.0% | 0 |
| November 2024 | 11 | 11 | 100.0% | 0 |
| December 2024 | 21 | 21 | 85.7% | 0 |
| January 2025 | 12 | 12 | 75.0% | 0 |
| February 2025 | 19 | 19 | 52.6% | 0 |
| March 2025 | 29 | 29 | 79.3% | 0 |
| April 2025 | 7 | 7 | 57.1% | 0 |
| May 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 30 | 30 | 53.3% | 0 |
| July 2025 | 35 | 35 | 68.6% | 0 |
| August 2025 | 32 | 31 | 83.9% | 1 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 48 | 48 | 54.2% | 0 |
| November 2025 | 28 | 28 | 85.7% | 0 |
| December 2025 | 25 | 25 | 64.0% | 0 |
| January 2026 | 26 | 26 | 92.3% | 0 |
| February 2026 | 27 | 27 | 77.8% | 0 |
| March 2026 | 31 | 30 | 56.7% | 1 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 14 | 14 | 78.6% | 0 |
| July 2026 | 14 | 13 | 69.2% | 1 |