Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
DL 5733 · New York (JFK) → Boston (BOS)
Sold by Delta, flown by Republic. Still flying: 56 of the last 56 days (Daily).
Arrives on time86%within 15 minutes, of 364 flights
Cancelled1.9%of scheduled flights
An hour or more late6%of flights that operated
When late, on average85 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves JFK
- 09:50
- Arrives BOS
- 11:15
- Flight time
- 1h 25m
- 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 JFK
All flights leaving New York (JFK) at 9–10 am, wherever they’re going: 86% left within 15 minutes and 2.5% were cancelled (9,051 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.