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Flight Reliability

DL 1607 · Delta Air Lines

Salt Lake City → Reno (SLC–RNO)

91
Nerd Approved
WanderNerd Reliability Score
85%
Arrive within 15 minutes
1 min
Average arrival delay
0.3%
Cancelled
9 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

6–9 PM has a slight edge.

Departures between 6–9 PM arrived on time 90% of the time, against 84% between 9 PM–12 AM.

Thursdays have been rough.

DL 1607 arrived on time 90% of the time on Tuesdays and just 75% on Thursdays. That gap is worth planning around.

A bit behind the SLC–RNO route.

DL 1607 arrived on time 85% of the time, versus 88% across the SLC–RNO route.

A bit ahead of the Delta Air Lines network.

DL 1607 arrived on time 85% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon85%(52 flights)
  • Tue90%(52 flights)
  • Wed90%(52 flights)
  • Thu75%(52 flights)
  • Fri82%(51 flights)
  • Sat87%(52 flights)
  • Sun83%(53 flights)
On-time by departure window
  • 3–6 PM—(1 flights)
  • 6–9 PM90%(40 flights)
  • 9 PM–12 AM84%(323 flights)
On-time trend by month
84%
May

Jun 77% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202584%31
August 202574%31
September 202597%30
October 202587%31
November 202597%30
December 202580%30
January 202687%31
February 202693%28
March 202681%31
April 202677%30
May 202684%31
Departures on time
84%
Diverted
0%
Flights flown
364
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.