Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
F9 3521 · Hebron (CVG) → Las Vegas (LAS)
Sold by Frontier. Still flying: 32 of the last 56 days (Mon, Thu, Fri, Sun).
Arrives on time75%within 15 minutes, of 161 flights
Cancelled2.5%of scheduled flights
An hour or more late10%of flights that operated
When late, on average105 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Las Vegas is 3 h behind Hebron).
- Leaves CVG
- 21:15
- Arrives LAS
- 22:30
- Flight time
- 4h 15m
- 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 CVG
All flights leaving Hebron (CVG) at 9–10 pm, wherever they’re going: 62% left within 15 minutes and 2.9% were cancelled (376 flights in the year). Other Frontier flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.