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Flight Reliability

DL 5055 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5055 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
12 min
Average arrival delay
5.4%
Cancelled
10 min early
Median arrival delay

Based on 554 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(86 flights)
  • Tue79%(86 flights)
  • Wed80%(88 flights)
  • Thu72%(87 flights)
  • Fri79%(89 flights)
  • Sat75%(16 flights)
  • Sun81%(72 flights)
On-time by departure window
  • 6–9 AM90%(81 flights)
  • 9 AM–12 PM84%(212 flights)
  • 12–3 PM76%(123 flights)
  • 3–6 PM66%(58 flights)
  • 6–9 PM58%(50 flights)
On-time trend by month
80%
May

Jun 79% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%34
July 202582%51
August 202596%51
September 202598%52
October 202579%52
November 202571%49
December 202564%39
January 202676%41
February 202694%34
March 202656%52
April 202669%54
May 202680%15
Departures on time
79%
Diverted
0%
Flights flown
524
Months covered
12

Keep nerding

Based on 554 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.