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WanderNerd

Flight Reliability

DL 5218 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5218 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

70%
Arrive within 15 minutes
12 min
Average arrival delay
6.9%
Cancelled
8 min early
Median arrival delay

Based on 346 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(50 flights)
  • Tue69%(48 flights)
  • Wed65%(46 flights)
  • Thu70%(46 flights)
  • Fri61%(49 flights)
  • Sat76%(37 flights)
  • Sun80%(46 flights)
On-time by departure window
  • 3–6 AM100%(12 flights)
  • 6–9 AM66%(64 flights)
  • 9 AM–12 PM75%(60 flights)
  • 12–3 PM70%(23 flights)
  • 3–6 PM68%(37 flights)
  • 6–9 PM67%(126 flights)
On-time trend by month
100%
May

Jun 52% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202552%27
July 202533%18
August 202582%28
September 202582%28
October 202569%29
November 202592%26
December 202566%29
January 202675%12
March 202675%48
April 202658%60
May 2026100%13
Departures on time
72%
Diverted
0%
Flights flown
322
Months covered
12

Based on 346 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.