Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
AA 678 · Houston (IAH) → Miami (MIA)
Sold by American. Not in the Jun 6 – Jul 31, 2026 schedule; last flew 2025-11-01.
Arrives on time57%within 15 minutes, of 93 flights
Cancelled0.0%of scheduled flights
An hour or more late16%of flights that operated
When late, on average112 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Miami is 1 h ahead of Houston).
- Leaves IAH
- 18:14
- Arrives MIA
- 21:51
- Flight time
- 2h 38m
- Days flown, last 8 weeks
- 0 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 IAH
All flights leaving Houston (IAH) at 6–7 pm, wherever they’re going: 74% left within 15 minutes and 1.1% were cancelled (21,103 flights in the year). Other American flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.