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Flight Reliability

DL 5808 · Delta Air Lines

Boston → New York (BOS–JFK)96% of its flights flew this route. The rest (CHS–BOS) are included in these numbers.

69
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
8 min
Average arrival delay
3.8%
Cancelled
3 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

DL 5808 departing between 6–9 AM arrived on time 94% of the time, versus 75% between 12–3 PM.

Sunday scaries are real for this one.

DL 5808 arrived on time 82% of the time on Tuesdays. On Sundays: 67%.

A bit behind the Delta Air Lines network.

DL 5808 arrived on time 76% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 5808 was cancelled 3.8% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon75%(48 flights)
  • Tue82%(49 flights)
  • Wed80%(50 flights)
  • Thu76%(50 flights)
  • Fri79%(52 flights)
  • Sat71%(52 flights)
  • Sun67%(49 flights)
On-time by departure window
  • 6–9 AM94%(16 flights)
  • 12–3 PM75%(334 flights)
On-time trend by month
61%
May

Jun 57% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%30
July 202559%27
August 202573%30
September 202580%30
October 202583%30
November 202576%29
December 202581%31
January 202689%27
February 202688%25
March 202677%30
April 202687%30
May 202661%31
Departures on time
83%
Diverted
0%
Flights flown
350
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.