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Flight Reliability

DL 2101 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2101 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
1 min early
Average arrival delay
1.5%
Cancelled
12 min early
Median arrival delay

Based on 591 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(83 flights)
  • Tue90%(86 flights)
  • Wed93%(87 flights)
  • Thu87%(84 flights)
  • Fri83%(83 flights)
  • Sat90%(76 flights)
  • Sun82%(83 flights)
On-time by departure window
  • 6–9 AM87%(283 flights)
  • 9 AM–12 PM87%(281 flights)
  • 6–9 PM72%(18 flights)
On-time trend by month
100%
May

Jun 80% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%60
July 202586%62
August 202587%62
September 202587%60
October 202594%62
November 202591%58
December 202586%36
January 202684%25
February 202688%34
March 202680%51
April 202685%60
May 2026100%12
Departures on time
86%
Diverted
0%
Flights flown
582
Months covered
12

Keep nerding

Based on 591 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.