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Flight Reliability

DL 2534 · Delta Air Lines

San Antonio → Los Angeles (SAT–LAX)93% of its flights flew this route. The rest (ATL–MEM) are included in these numbers.

99
Nerd Approved
WanderNerd Reliability Score
92%
Arrive within 15 minutes
6 min early
Average arrival delay
0.3%
Cancelled
14 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

DL 2534 departing between 6–9 AM arrived on time 93% of the time, versus 75% between 6–9 PM.

Skip Tuesday if you can.

DL 2534 arrived on time 96% of the time on Saturdays. On Tuesdays: 87%.

A bit ahead of the SAT–LAX route.

DL 2534 arrived on time 92% of the time, versus 88% across the SAT–LAX route.

Better than the Delta Air Lines network average.

DL 2534 arrived on time 92% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon92%(52 flights)
  • Tue87%(52 flights)
  • Wed92%(52 flights)
  • Thu89%(52 flights)
  • Fri90%(51 flights)
  • Sat96%(52 flights)
  • Sun96%(53 flights)
On-time by departure window
  • 6–9 AM93%(339 flights)
  • 3–6 PM—(1 flights)
  • 6–9 PM75%(24 flights)
On-time trend by month
80%
May

Jun 90% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202597%31
August 202597%31
September 202590%30
October 2025100%31
November 2025100%30
December 202597%31
January 202677%31
February 202686%28
March 202694%31
April 202693%30
May 202680%30
Departures on time
92%
Diverted
0%
Flights flown
364
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.