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Flight Reliability

DL 1210 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1210 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
6 min
Average arrival delay
0.6%
Cancelled
4 min early
Median arrival delay

Based on 703 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(102 flights)
  • Tue85%(102 flights)
  • Wed82%(100 flights)
  • Thu78%(100 flights)
  • Fri73%(102 flights)
  • Sat82%(92 flights)
  • Sun74%(100 flights)
On-time trend by month
87%
May

Jun 81% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%48
July 202575%56
August 202573%60
September 202583%60
October 202576%62
November 202589%56
December 202569%62
January 202675%57
February 202687%55
March 202694%62
April 202678%60
May 202687%60
Departures on time
79%
Diverted
0.1%
Flights flown
698
Months covered
12

Keep nerding

Based on 703 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.