Flight Reliability
DL 4660 · Delta Air Lines
Richmond → New York (RIC–JFK)94% of its flights flew this route. The rest (CHA–DTW) are included in these numbers.
92
Nerd Approved
WanderNerd Reliability Score
- 91%
- Arrive within 15 minutes
- 7 min early
- Average arrival delay
- 1.6%
- Cancelled
- 15 min early
- Median arrival delay
Based on 64 historical flights. Data through May 2026.
What the data says
Sunday has been the better bet.
A small edge: 90% on time on Sundays against 85% on Saturdays.
Better than the RIC–JFK route average.
DL 4660 arrived on time 91% of the time, versus 83% across the RIC–JFK route.
Better than the Delta Air Lines network average.
DL 4660 arrived on time 91% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon—(8 flights)
- Tue—(9 flights)
- Wed—(7 flights)
- Thu—(7 flights)
- Fri—(9 flights)
- Sat85%(13 flights)
- Sun90%(10 flights)
- Departures on time
- 89%
- Diverted
- 0%
- Flights flown
- 63
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 64 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.