Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
DL 1655 · Boston (BOS) → San Francisco (SFO)
Sold by Delta. Still flying: 56 of the last 56 days (Daily).
Arrives on time69%within 15 minutes, of 337 flights
Cancelled1.8%of scheduled flights
An hour or more late8%of flights that operated
When late, on average58 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (San Francisco is 3 h behind Boston).
- Leaves BOS
- 17:05
- Arrives SFO
- 20:51
- Flight time
- 6h 48m
- 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 BOS
All flights leaving Boston (BOS) at 5–6 pm, wherever they’re going: 63% left within 15 minutes and 3.8% were cancelled (9,918 flights in the year). Other Delta flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.