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Flight Reliability

DL 5818 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5818 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

78%
Arrive within 15 minutes
7 min
Average arrival delay
4.7%
Cancelled
9 min early
Median arrival delay

Based on 341 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(54 flights)
  • Tue76%(54 flights)
  • Wed79%(53 flights)
  • Thu80%(50 flights)
  • Fri75%(52 flights)
  • Sat87%(15 flights)
  • Sun83%(47 flights)
On-time by departure window
  • 6–9 AM—(5 flights)
  • 12–3 PM77%(220 flights)
  • 3–6 PM81%(74 flights)
  • 6–9 PM85%(26 flights)
On-time trend by month
92%
May

Jun 77% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%26
July 202572%25
August 202589%26
September 202554%24
October 202565%26
November 202589%26
December 202571%28
January 202682%45
February 202677%44
March 202673%15
April 2026100%16
May 202692%24
Departures on time
77%
Diverted
0%
Flights flown
325
Months covered
12

Keep nerding

Based on 341 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.