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Flight Reliability

DL 342 · Delta Air Lines

New York → Atlanta (LGA–ATL)97% of its flights flew this route. The rest (MCO–MSP) are included in these numbers.

86
Pretty Reliable
WanderNerd Reliability Score
93%
Arrive within 15 minutes
8 min early
Average arrival delay
3.6%
Cancelled
11 min early
Median arrival delay

Based on 361 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 342 arrived on time 98% of the time on Fridays. On Sundays: 90%.

Well ahead of the LGA–ATL route.

DL 342 arrived on time 93% of the time, versus 76% across the LGA–ATL route.

Better than the Delta Air Lines network average.

DL 342 arrived on time 93% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 342 was cancelled 3.6% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon94%(47 flights)
  • Tue94%(49 flights)
  • Wed92%(52 flights)
  • Thu92%(50 flights)
  • Fri98%(49 flights)
  • Sat94%(50 flights)
  • Sun90%(50 flights)
On-time trend by month
97%
May

Jun 93% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%29
July 202597%31
August 202597%30
September 202597%30
October 202590%31
November 202593%28
December 202593%28
January 202682%28
February 202692%26
March 202689%27
April 2026100%29
May 202697%30
Departures on time
96%
Diverted
0.3%
Flights flown
347
Months covered
12

Same route, other flights

Keep nerding

Based on 361 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.