Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
AA 4727 · Boston (BOS) → St Louis (STL)
Sold by American, flown by Republic. Not in the Jun 6 – Jul 31, 2026 schedule; last flew 2025-10-05.
Arrives on time81%within 15 minutes, of 28 flights
Cancelled3.6%of scheduled flights
An hour or more late4%of flights that operated
When late, on average40 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (St Louis is 1 h behind Boston).
- Leaves BOS
- 16:10
- Arrives STL
- 18:15
- Flight time
- 3h 05m
- 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 BOS
All flights leaving Boston (BOS) at 4–5 pm, wherever they’re going: 66% left within 15 minutes and 3.0% were cancelled (8,964 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.