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Flight Reliability

DL 3746 · Delta Air Lines

Los Angeles → San Diego (LAX–SAN)

92
Nerd Approved
WanderNerd Reliability Score
87%
Arrive within 15 minutes
2 min early
Average arrival delay
0.8%
Cancelled
10 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 3746 departing between 9 PM–12 AM arrived on time 90% of the time, versus 9% between 6–9 PM.

Sunday scaries are real for this one.

DL 3746 arrived on time 92% of the time on Tuesdays. On Sundays: 81%.

A bit ahead of the Delta Air Lines network.

DL 3746 arrived on time 87% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 3746 arrived on time 90% of the time over the last three months in the data, compared with 76% in the three months before that.

The breakdown

On-time by weekday
  • Mon86%(51 flights)
  • Tue92%(52 flights)
  • Wed90%(49 flights)
  • Thu86%(50 flights)
  • Fri83%(52 flights)
  • Sat92%(52 flights)
  • Sun81%(53 flights)
On-time by departure window
  • 6–9 PM9%(11 flights)
  • 9 PM–12 AM90%(348 flights)
On-time trend by month
90%
May

Jun 93% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202587%31
August 202594%31
September 202597%29
October 202587%31
November 202589%28
December 202554%28
January 202677%31
February 202696%28
March 202681%31
April 2026100%30
May 202690%31
Departures on time
92%
Diverted
0%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.