About 1 in 2 DL 817 flights from Boston arrived 15+ minutes late, diverted or cancelled over the past year (48%); 3.1% were cancelled. The typical flight landed 7 minutes late.
DL 817: BOS → RDU
Scheduled to leave Boston at 8:05 p.m. local time. Over the past year it arrived on time 52% of the time (290 flights), in line with other DL flights on the route at that hour (50%). Last seen in the data Aug 31, 2026.
Usually Delta Air Lines's last flight of the day from Boston to Raleigh (100% of days). Delta Air Lines's last BOS–RDU flight was cancelled 3.0% of the time, against 2.7% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 6:20 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 49 | 55% |
| Tuesday | 48 | 60% |
| Wednesday | 49 | 65% |
| Thursday | 49 | 51% |
| Friday | 48 | 44% |
| Saturday | 1 | — |
| Sunday | 46 | 37% |
Why it was late
All flights BOS → RDU · Connecting off DL 817? Check the risk
Questions
How often is DL 817 from BOS to RDU late?
Delta Air Lines 817 from Boston, MA to Raleigh/Durham, NC arrived 15 or more minutes late, was diverted or was cancelled on 48% of 290 scheduled flights between September 2025 and August 2026. 3.1% 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.