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Flight Reliability

DL 1117 · Delta Air Lines

San Diego → Salt Lake City (SAN–SLC)

100
Nerd Approved
WanderNerd Reliability Score
96%
Arrive within 15 minutes
6 min early
Average arrival delay
0.8%
Cancelled
11 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Friday is doing you no favors.

DL 1117 arrived on time 100% of the time on Tuesdays. On Fridays: 90%.

Better than the SAN–SLC route average.

DL 1117 arrived on time 96% of the time, versus 85% across the SAN–SLC route.

Better than the Delta Air Lines network average.

DL 1117 arrived on time 96% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon98%(51 flights)
  • Tue100%(52 flights)
  • Wed96%(52 flights)
  • Thu92%(51 flights)
  • Fri90%(52 flights)
  • Sat94%(51 flights)
  • Sun98%(53 flights)
On-time trend by month
90%
May

Jun 97% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202590%31
August 202590%31
September 202597%29
October 202594%31
November 2025100%30
December 202593%30
January 2026100%31
February 2026100%27
March 2026100%31
April 202697%30
May 202690%31
Departures on time
95%
Diverted
0%
Flights flown
362
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.