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Flight Reliability

DL 1202 · Delta Air Lines

Salt Lake City → San Diego (SLC–SAN)

88
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
2 min
Average arrival delay
0.8%
Cancelled
8 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 1202 departing between 9 PM–12 AM arrived on time 87% of the time, versus 59% between 6–9 PM.

Sunday scaries are real for this one.

DL 1202 arrived on time 94% of the time on Tuesdays and just 77% on Sundays. That gap is worth planning around.

A bit ahead of the Delta Air Lines network.

DL 1202 arrived on time 85% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon87%(52 flights)
  • Tue94%(51 flights)
  • Wed90%(51 flights)
  • Thu80%(51 flights)
  • Fri88%(51 flights)
  • Sat77%(52 flights)
  • Sun77%(52 flights)
On-time by departure window
  • 6–9 PM59%(29 flights)
  • 9 PM–12 AM87%(331 flights)
On-time trend by month
90%
May

Jun 90% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202584%31
August 202587%31
September 202597%29
October 202574%31
November 202579%28
December 202587%30
January 202681%31
February 202682%27
March 202687%31
April 202680%30
May 202690%31
Departures on time
84%
Diverted
0.3%
Flights flown
360
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.