Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 4457 · Kansas City (MCI) → San Diego (SAN)
Sold by Southwest. Still flying: 47 of the last 56 days (Mon–Sat).
Arrives on time51%within 15 minutes, of 49 flights
Cancelled0.0%of scheduled flights
An hour or more late10%of flights that operated
When late, on average41 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (San Diego is 2 h behind Kansas City).
- Leaves MCI
- 18:15
- Arrives SAN
- 19:35
- Flight time
- 3h 20m
- Days flown, last 8 weeks
- 47 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at MCI
All flights leaving Kansas City (MCI) at 6–7 pm, wherever they’re going: 66% left within 15 minutes and 2.0% were cancelled (3,445 flights in the year). Other Southwest flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.