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Flight Reliability

DL 1222 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1222 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

75%
Arrive within 15 minutes
9 min
Average arrival delay
3.6%
Cancelled
5 min early
Median arrival delay

Based on 249 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(48 flights)
  • Tue78%(18 flights)
  • Wed63%(19 flights)
  • Thu82%(50 flights)
  • Fri85%(47 flights)
  • Sat—(9 flights)
  • Sun69%(48 flights)
On-time by departure window
  • 6–9 AM82%(33 flights)
  • 9 AM–12 PM92%(51 flights)
  • 6–9 PM65%(120 flights)
  • 9 PM–12 AM74%(35 flights)
On-time trend by month
75%
May

Jun 41% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202541%29
July 202550%20
August 202554%13
September 202585%13
October 202594%16
December 202560%20
January 202689%26
February 202691%35
March 202689%26
April 202688%16
May 202675%16
Departures on time
73%
Diverted
0.4%
Flights flown
239
Months covered
12

Keep nerding

Based on 249 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.