Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 1221 · Las Vegas (LAS) → San Antonio (SAT)
Sold by Southwest. Still flying: 23 of the last 56 days (Tue, Wed, Sat).
Arrives on time78%within 15 minutes, of 23 flights
Cancelled0.0%of scheduled flights
An hour or more late4%of flights that operated
When late, on average42 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (San Antonio is 2 h ahead of Las Vegas).
- Leaves LAS
- 12:30
- Arrives SAT
- 17:15
- Flight time
- 2h 45m
- Days flown, last 8 weeks
- 23 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 LAS
All flights leaving Las Vegas (LAS) at 12–1 pm, wherever they’re going: 73% left within 15 minutes and 1.0% were cancelled (10,900 flights in the year). Other Southwest flights on this route →
Upcoming forecasts
This flight isn’t in our published forecasts for the next few days.