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Flight Reliability

DL 2075 · Delta Air Lines

Salt Lake City → Philadelphia (SLC–PHL)

81
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
2 min
Average arrival delay
2.2%
Cancelled
4 min early
Median arrival delay

Based on 278 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

DL 2075 departing between 3–6 PM arrived on time 89% of the time, versus 79% between 9 PM–12 AM.

Thursdays have been rough.

DL 2075 arrived on time 95% of the time on Saturdays and just 74% on Thursdays. That gap is worth planning around.

A bit behind the SLC–PHL route.

DL 2075 arrived on time 81% of the time, versus 84% across the SLC–PHL route.

Trending in the right direction.

DL 2075 arrived on time 88% 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
  • Mon80%(50 flights)
  • Tue86%(28 flights)
  • Wed93%(30 flights)
  • Thu74%(50 flights)
  • Fri81%(47 flights)
  • Sat95%(20 flights)
  • Sun75%(47 flights)
On-time by departure window
  • 3–6 PM89%(55 flights)
  • 9 PM–12 AM79%(217 flights)
On-time trend by month
90%
May

Jun 77% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%26
July 202583%29
August 202580%25
September 202577%17
October 202577%17
November 202573%15
December 202567%21
January 202682%28
February 202690%20
March 202682%27
April 202693%28
May 202690%19
Departures on time
89%
Diverted
0%
Flights flown
272
Months covered
12

Same route, other flights

Keep nerding

Based on 278 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.