Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
F9 3999 · Dallas-Fort Worth (DFW) → San Francisco (SFO)
Sold by Frontier. Still flying: 56 of the last 56 days (Daily).
Arrives on time55%within 15 minutes, of 199 flights
Cancelled4.5%of scheduled flights
An hour or more late16%of flights that operated
When late, on average60 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (San Francisco is 2 h behind Dallas-Fort Worth).
- Leaves DFW
- 20:59
- Arrives SFO
- 23:02
- Flight time
- 4h 03m
- 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 DFW
All flights leaving Dallas-Fort Worth (DFW) at 8–9 pm, wherever they’re going: 59% left within 15 minutes and 3.4% were cancelled (15,077 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.