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Flight Reliability

DL 5351 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5351 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

87%
Arrive within 15 minutes
1 min
Average arrival delay
3.4%
Cancelled
12 min early
Median arrival delay

Based on 261 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(36 flights)
  • Tue89%(36 flights)
  • Wed87%(37 flights)
  • Thu84%(38 flights)
  • Fri82%(34 flights)
  • Sat94%(32 flights)
  • Sun80%(39 flights)
On-time by departure window
  • 6–9 AM90%(198 flights)
  • 6–9 PM74%(54 flights)
On-time trend by month
70%
May

Jun 96% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%26
July 202583%30
August 202594%31
September 202593%29
October 202597%31
November 202590%29
December 202574%19
March 202656%16
April 2026100%15
May 202670%23
Departures on time
88%
Diverted
0%
Flights flown
252
Months covered
12

Keep nerding

Based on 261 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.