About 1 in 5 DL 5728 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (20%); 6.3% were cancelled. The typical flight landed 14 minutes early.
DL 5728: LGA → BOS
Scheduled to leave New York at 10:00 a.m. local time, operated by Republic Airways as YX 5728. Over the past year it arrived on time 80% of the time (189 flights), in line with other DL flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 35 | 74% |
| Tuesday | 34 | 85% |
| Wednesday | 34 | 88% |
| Thursday | 34 | 91% |
| Friday | 34 | 76% |
| Saturday | 2 | — |
| Sunday | 16 | — |
Why it was late
All flights LGA → BOS · Connecting off DL 5728? Check the risk
Questions
How often is DL 5728 from LGA to BOS late?
Delta Air Lines 5728 from New York, NY to Boston, MA arrived 15 or more minutes late, was diverted or was cancelled on 20% of 189 scheduled flights between September 2025 and August 2026. 6.3% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.