Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 4128 · Dallas (DAL) → Oklahoma City (OKC)
Sold by Southwest. Still flying: 32 of the last 56 days (Mon, Thu, Fri, Sat).
Arrives on time68%within 15 minutes, of 34 flights
Cancelled0.0%of scheduled flights
An hour or more late12%of flights that operated
When late, on average83 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves DAL
- 10:45
- Arrives OKC
- 11:45
- Flight time
- 1h 00m
- Days flown, last 8 weeks
- 32 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 DAL
All flights leaving Dallas (DAL) at 10–11 am, wherever they’re going: 83% left within 15 minutes and 1.5% were cancelled (4,162 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.