Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
AA 3138 · Los Angeles (LAX) → Boston (BOS)
Sold by American. Still flying: 26 of the last 56 days (Mon, Tue, Wed, Sat, Sun).
Arrives on time70%within 15 minutes, of 40 flights
Cancelled0.0%of scheduled flights
An hour or more late12%of flights that operated
When late, on average213 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Boston is 3 h ahead of Los Angeles).
- Leaves LAX
- 12:03
- Arrives BOS
- 20:38
- Flight time
- 5h 35m
- Days flown, last 8 weeks
- 26 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 LAX
All flights leaving Los Angeles (LAX) at 12–1 pm, wherever they’re going: 76% left within 15 minutes and 1.0% were cancelled (9,321 flights in the year). Other American flights on this route →
Upcoming forecasts
This flight isn’t in our published forecasts for the next few days.