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Flight Reliability

DL 5207 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5207 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

87%
Arrive within 15 minutes
2 min early
Average arrival delay
3.2%
Cancelled
10 min early
Median arrival delay

Based on 724 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(98 flights)
  • Tue88%(102 flights)
  • Wed91%(101 flights)
  • Thu90%(102 flights)
  • Fri92%(102 flights)
  • Sat75%(97 flights)
  • Sun81%(99 flights)
On-time by departure window
  • 6–9 AM92%(198 flights)
  • 9 AM–12 PM87%(348 flights)
  • 12–3 PM82%(151 flights)
  • 3–6 PM—(4 flights)
On-time trend by month
95%
May

Jun 88% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%56
July 202594%62
August 202594%62
September 202592%60
October 202587%61
November 202581%59
December 202576%59
January 202681%52
February 202675%48
March 202687%61
April 202693%60
May 202695%61
Departures on time
87%
Diverted
0%
Flights flown
701
Months covered
12

Keep nerding

Based on 724 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.