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WanderNerd

Flight Reliability

DL 5107 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5107 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

72%
Arrive within 15 minutes
21 min
Average arrival delay
10.0%
Cancelled
6 min early
Median arrival delay

Based on 389 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(54 flights)
  • Tue67%(55 flights)
  • Wed71%(51 flights)
  • Thu67%(45 flights)
  • Fri85%(58 flights)
  • Sat71%(24 flights)
  • Sun69%(62 flights)
On-time by departure window
  • 6–9 AM90%(58 flights)
  • 12–3 PM90%(19 flights)
  • 3–6 PM69%(144 flights)
  • 6–9 PM65%(128 flights)
On-time trend by month
57%
May

Jun 63% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%40
July 202561%41
August 202583%52
September 202589%18
December 202535%17
January 202697%31
February 202681%26
March 202676%41
April 202674%38
May 202657%44
Departures on time
75%
Diverted
0.3%
Flights flown
349
Months covered
11

Based on 389 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.