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Flight Reliability

DL 386 · Delta Air Lines

Salt Lake City → New York (SLC–JFK)90% of its flights flew this route. The rest (DFW–ATL, SMF–DTW) are included in these numbers.

82
Pretty Reliable
WanderNerd Reliability Score
86%
Arrive within 15 minutes
0 min
Average arrival delay
2.0%
Cancelled
13 min early
Median arrival delay

Based on 353 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 386 departing between 9 PM–12 AM arrived on time 94% of the time, versus 72% between 6–9 PM.

Friday is doing you no favors.

DL 386 arrived on time 90% of the time on Thursdays. On Fridays: 82%.

A bit ahead of the SLC–JFK route.

DL 386 arrived on time 86% of the time, versus 82% across the SLC–JFK route.

A bit ahead of the Delta Air Lines network.

DL 386 arrived on time 86% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon90%(48 flights)
  • Tue83%(47 flights)
  • Wed90%(48 flights)
  • Thu90%(50 flights)
  • Fri82%(49 flights)
  • Sat88%(49 flights)
  • Sun82%(51 flights)
On-time by departure window
  • 9 AM–12 PM87%(307 flights)
  • 6–9 PM72%(18 flights)
  • 9 PM–12 AM94%(17 flights)
On-time trend by month
79%
May

Jun 80% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202586%28
August 202590%31
September 202597%29
October 202586%29
November 202593%30
December 202577%31
January 202677%30
February 202693%27
March 202683%30
April 202696%23
May 202679%24
Departures on time
80%
Diverted
1.1%
Flights flown
342
Months covered
12

Same route, other flights

Keep nerding

Based on 353 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.