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Flight Reliability

DL 5730 · Delta Air Lines

Boston → New York (BOS–LGA)95% of its flights flew this route. The rest (LGA–ORF, DTW–LEX) are included in these numbers.

61
A Little Dicey
WanderNerd Reliability Score
78%
Arrive within 15 minutes
6 min
Average arrival delay
6.3%
Cancelled
10 min early
Median arrival delay

Based on 316 historical flights. Data through May 2026.

What the data says

3–6 PM has a slight edge.

Departures between 3–6 PM arrived on time 83% of the time, against 78% between 12–3 PM.

Sunday scaries are real for this one.

DL 5730 arrived on time 88% of the time on Saturdays and just 72% on Sundays. That gap is worth planning around.

A bit behind the Delta Air Lines network.

DL 5730 arrived on time 78% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 5730 was cancelled 6.3% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon84%(45 flights)
  • Tue81%(47 flights)
  • Wed79%(47 flights)
  • Thu72%(46 flights)
  • Fri77%(48 flights)
  • Sat88%(17 flights)
  • Sun72%(46 flights)
On-time by departure window
  • 12–3 PM78%(282 flights)
  • 3–6 PM83%(12 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
85%
May

Jun 69% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%26
July 202575%28
August 202587%31
September 202584%25
October 202577%26
November 202567%21
December 202578%18
January 202686%21
February 202667%21
March 202664%25
April 202693%28
May 202685%26
Departures on time
80%
Diverted
0%
Flights flown
296
Months covered
12

Same route, other flights

Keep nerding

Based on 316 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.