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Flight Reliability

DL 835 · Delta Air Lines

Salt Lake City → Atlanta (SLC–ATL)97% of its flights flew this route. The rest (BOS–DFW) are included in these numbers.

90
Nerd Approved
WanderNerd Reliability Score
87%
Arrive within 15 minutes
0 min
Average arrival delay
1.1%
Cancelled
7 min early
Median arrival delay

Based on 361 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

DL 835 departing between 9 AM–12 PM arrived on time 87% of the time, versus 73% between 12–3 PM.

Skip Saturday if you can.

DL 835 arrived on time 92% of the time on Mondays. On Saturdays: 80%.

A bit ahead of the Delta Air Lines network.

DL 835 arrived on time 87% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 835 arrived on time 89% of the time over the last three months in the data, compared with 80% in the three months before that.

The breakdown

On-time by weekday
  • Mon92%(51 flights)
  • Tue87%(52 flights)
  • Wed90%(50 flights)
  • Thu84%(50 flights)
  • Fri88%(51 flights)
  • Sat80%(51 flights)
  • Sun85%(52 flights)
On-time by departure window
  • 9 AM–12 PM87%(346 flights)
  • 12–3 PM73%(11 flights)
On-time trend by month
90%
May

Jun 73% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202590%31
August 202587%31
September 202590%30
October 202597%31
November 202593%30
December 202589%27
January 202668%28
February 202682%28
March 202690%30
April 202687%30
May 202690%31
Departures on time
90%
Diverted
0%
Flights flown
357
Months covered
12

Same route, other flights

Keep nerding

Based on 361 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.