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Flight Reliability

DL 5229 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5229 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
3 min
Average arrival delay
1.4%
Cancelled
8 min early
Median arrival delay

Based on 665 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(95 flights)
  • Tue79%(97 flights)
  • Wed79%(96 flights)
  • Thu83%(93 flights)
  • Fri74%(91 flights)
  • Sat79%(90 flights)
  • Sun87%(94 flights)
On-time by departure window
  • 6–9 AM78%(342 flights)
  • 9 AM–12 PM84%(314 flights)
On-time trend by month
87%
May

Jun 93% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%56
July 202584%62
August 202590%62
September 202587%60
October 202586%62
November 202581%53
December 202563%38
January 202667%52
February 202664%39
March 202680%54
April 202677%56
May 202687%62
Departures on time
90%
Diverted
0%
Flights flown
656
Months covered
12

Keep nerding

Based on 665 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.