Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
F9 688 · Denver (DEN) → Washington (DCA)
Sold by Frontier. Still flying: 46 of the last 56 days (Mon, Tue, Thu, Fri, Sat, Sun).
Arrives on time78%within 15 minutes, of 312 flights
Cancelled1.3%of scheduled flights
An hour or more late8%of flights that operated
When late, on average78 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Washington is 2 h ahead of Denver).
- Leaves DEN
- 11:26
- Arrives DCA
- 16:59
- Flight time
- 3h 32m
- Days flown, last 8 weeks
- 46 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 DEN
All flights leaving Denver (DEN) at 11 am–12 pm, wherever they’re going: 83% left within 15 minutes and 0.5% were cancelled (31,205 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.