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Flight Reliability

DL 353 · Delta Air Lines

New York → Los Angeles (JFK–LAX)87% of its flights flew this route. The rest (ATL–BZN, BZN–ATL) are included in these numbers.

73
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
9 min
Average arrival delay
1.8%
Cancelled
5 min early
Median arrival delay

Based on 333 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 9 AM–12 PM arrived on time 78% of the time, against 71% between 6–9 PM.

Wednesdays have been rough.

DL 353 arrived on time 80% of the time on Saturdays and just 63% on Wednesdays. That gap is worth planning around.

A bit behind the JFK–LAX route.

DL 353 arrived on time 72% of the time, versus 79% across the JFK–LAX route.

Lagging the Delta Air Lines network.

DL 353 arrived on time 72% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon76%(53 flights)
  • Tue71%(44 flights)
  • Wed63%(43 flights)
  • Thu71%(51 flights)
  • Fri76%(53 flights)
  • Sat80%(30 flights)
  • Sun72%(53 flights)
On-time by departure window
  • 9 AM–12 PM78%(18 flights)
  • 12–3 PM78%(18 flights)
  • 3–6 PM72%(64 flights)
  • 6–9 PM71%(227 flights)
On-time trend by month
73%
May

Jun 65% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%26
July 202559%29
August 202577%30
September 202573%26
October 202568%28
November 202578%27
December 202563%41
January 202686%21
February 202671%14
March 202685%27
April 202675%28
May 202673%30
Departures on time
78%
Diverted
0%
Flights flown
327
Months covered
12

Same route, other flights

Keep nerding

Based on 333 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.