Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
F9 4639 · Cleveland (CLE) → Denver (DEN)
Sold by Frontier. Still flying: 56 of the last 56 days (Daily).
Arrives on time82%within 15 minutes, of 160 flights
Cancelled1.9%of scheduled flights
An hour or more late6%of flights that operated
When late, on average56 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Denver is 2 h behind Cleveland).
- Leaves CLE
- 12:08
- Arrives DEN
- 13:34
- Flight time
- 3h 26m
- Days flown, last 8 weeks
- 56 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 CLE
All flights leaving Cleveland (CLE) at 12–1 pm, wherever they’re going: 82% left within 15 minutes and 1.6% were cancelled (2,549 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.