Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 501 · Delta Air Lines

Atlanta → Los Angeles (ATL–LAX)

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

Based on 364 historical flights. Data through May 2026.

What the data says

Skip Monday if you can.

DL 501 arrived on time 94% of the time on Thursdays. On Mondays: 82%.

Better than the ATL–LAX route average.

DL 501 arrived on time 87% of the time, versus 79% across the ATL–LAX route.

A bit ahead of the Delta Air Lines network.

DL 501 arrived on time 87% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 501 arrived on time 86% of the time over the last three months in the data, compared with 78% in the three months before that.

The breakdown

On-time by weekday
  • Mon82%(51 flights)
  • Tue85%(52 flights)
  • Wed90%(52 flights)
  • Thu94%(52 flights)
  • Fri85%(52 flights)
  • Sat88%(51 flights)
  • Sun86%(51 flights)
On-time trend by month
81%
May

Jun 83% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202597%31
August 202590%31
September 202593%30
October 202597%31
November 202593%29
December 202584%31
January 202672%29
February 202679%28
March 202690%30
April 202687%30
May 202681%31
Departures on time
88%
Diverted
0%
Flights flown
361
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.