Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 826 · Delta Air Lines

Atlanta → Santa Ana (ATL–SNA)88% of its flights flew this route. The rest (SNA–ATL, MEM–ATL) are included in these numbers.

79
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
12 min
Average arrival delay
0.8%
Cancelled
3 min early
Median arrival delay

Based on 374 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

DL 826 departing between 12–3 PM arrived on time 91% of the time, versus 74% between 3–6 PM.

Tuesdays have been rough.

DL 826 arrived on time 87% of the time on Saturdays and just 66% on Tuesdays. That gap is worth planning around.

A bit behind the Delta Air Lines network.

DL 826 arrived on time 77% of the time, versus 81% across the Delta Air Lines network.

Recent months have been rougher.

DL 826 arrived on time 78% of the time over the last three months in the data, compared with 86% in the three months before that.

The breakdown

On-time by weekday
  • Mon75%(60 flights)
  • Tue66%(41 flights)
  • Wed73%(45 flights)
  • Thu79%(57 flights)
  • Fri75%(55 flights)
  • Sat87%(52 flights)
  • Sun81%(59 flights)
On-time by departure window
  • 12–3 PM91%(11 flights)
  • 3–6 PM74%(241 flights)
  • 6–9 PM80%(84 flights)
  • 9 PM–12 AM88%(33 flights)
On-time trend by month
66%
May

Jun 70% → May 66% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%30
July 202555%31
August 202571%31
September 202583%30
October 202578%27
November 202573%22
December 202590%19
January 202686%29
February 202681%37
March 202687%47
April 202681%37
May 202666%29
Departures on time
81%
Diverted
0.5%
Flights flown
369
Months covered
12

Same route, other flights

Keep nerding

Based on 374 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.