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Flight Reliability

DL 1087 · Delta Air Lines

Salt Lake City → Los Angeles (SLC–LAX)

98
Nerd Approved
WanderNerd Reliability Score
93%
Arrive within 15 minutes
9 min early
Average arrival delay
0.8%
Cancelled
12 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 1087 arrived on time 96% of the time on Saturdays. On Sundays: 89%.

A bit ahead of the SLC–LAX route.

DL 1087 arrived on time 93% of the time, versus 87% across the SLC–LAX route.

Better than the Delta Air Lines network average.

DL 1087 arrived on time 93% of the time, versus 81% across the Delta Air Lines network.

Slipping a little lately.

DL 1087 arrived on time 90% of the time over the last three months in the data, compared with 94% in the three months before that.

The breakdown

On-time by weekday
  • Mon89%(52 flights)
  • Tue94%(50 flights)
  • Wed96%(51 flights)
  • Thu94%(50 flights)
  • Fri92%(52 flights)
  • Sat96%(52 flights)
  • Sun89%(52 flights)
On-time trend by month
94%
May

Jun 90% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 2025100%31
August 202594%31
September 202587%30
October 202590%31
November 2025100%29
December 202590%29
January 202697%29
February 202696%28
March 202690%30
April 202687%30
May 202694%31
Departures on time
93%
Diverted
0%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.