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Flight Reliability

DL 5435 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5435 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

71%
Arrive within 15 minutes
26 min
Average arrival delay
1.5%
Cancelled
4 min early
Median arrival delay

Based on 325 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(48 flights)
  • Tue68%(47 flights)
  • Wed77%(47 flights)
  • Thu63%(46 flights)
  • Fri71%(48 flights)
  • Sat71%(35 flights)
  • Sun70%(47 flights)
On-time by departure window
  • 12–3 PM73%(139 flights)
  • 3–6 PM69%(179 flights)
On-time trend by month
70%
May

Jun 56% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202556%25
July 202548%23
August 202576%25
September 202590%29
October 202587%30
November 202575%28
December 202537%19
January 202681%26
February 202682%27
March 202662%29
April 202673%30
May 202670%27
Departures on time
75%
Diverted
0.6%
Flights flown
318
Months covered
12

Keep nerding

Based on 325 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.