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Flight Reliability

DL 5497 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5497 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

81%
Arrive within 15 minutes
5 min
Average arrival delay
0%
Cancelled
6 min early
Median arrival delay

Based on 350 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(53 flights)
  • Tue81%(47 flights)
  • Wed79%(47 flights)
  • Thu81%(47 flights)
  • Fri79%(47 flights)
  • Sat82%(55 flights)
  • Sun83%(54 flights)
On-time by departure window
  • 6–9 AM88%(89 flights)
  • 9 AM–12 PM80%(137 flights)
  • 12–3 PM76%(123 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
97%
May

Jun 87% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%53
July 202569%58
August 202578%58
September 202577%60
October 2025100%10
January 202663%19
March 202674%23
April 202693%30
May 202697%29
Departures on time
83%
Diverted
0%
Flights flown
350
Months covered
11

Keep nerding

Based on 350 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.