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Flight Reliability

DL 5798 · Delta Air Lines

New York → Boston (JFK–BOS)84% of its flights flew this route. The rest (LGA–SAV, BOS–CHS) are included in these numbers.

66
Usually Fine
WanderNerd Reliability Score
69%
Arrive within 15 minutes
13 min
Average arrival delay
2.4%
Cancelled
4 min early
Median arrival delay

Based on 339 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 5798 departing between 6–9 PM arrived on time 83% of the time, versus 65% between 12–3 PM.

Sunday scaries are real for this one.

DL 5798 arrived on time 85% of the time on Saturdays and just 63% on Sundays. That gap is worth planning around.

A bit behind the JFK–BOS route.

DL 5798 arrived on time 69% of the time, versus 74% across the JFK–BOS route.

Lagging the Delta Air Lines network.

DL 5798 arrived on time 69% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon66%(44 flights)
  • Tue67%(48 flights)
  • Wed72%(47 flights)
  • Thu64%(47 flights)
  • Fri65%(49 flights)
  • Sat85%(48 flights)
  • Sun63%(48 flights)
On-time by departure window
  • 12–3 PM65%(213 flights)
  • 3–6 PM74%(89 flights)
  • 6–9 PM83%(29 flights)
On-time trend by month
70%
May

Jun 70% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%30
July 202574%31
August 202584%31
September 202527%30
October 202552%29
November 202582%27
December 202561%31
January 202682%17
February 202687%15
March 202673%30
April 202680%30
May 202670%30
Departures on time
71%
Diverted
0%
Flights flown
331
Months covered
12

Same route, other flights

Keep nerding

Based on 339 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.