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Flight Reliability

DL 2321 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2321 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

69%
Arrive within 15 minutes
14 min
Average arrival delay
3.2%
Cancelled
1 min early
Median arrival delay

Based on 507 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(69 flights)
  • Tue76%(74 flights)
  • Wed73%(75 flights)
  • Thu69%(74 flights)
  • Fri69%(73 flights)
  • Sat69%(52 flights)
  • Sun51%(72 flights)
On-time by departure window
  • 9 AM–12 PM82%(155 flights)
  • 12–3 PM64%(47 flights)
  • 3–6 PM64%(162 flights)
  • 6–9 PM60%(125 flights)
On-time trend by month
70%
May

Jun 70% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%59
July 202587%62
August 202580%20
November 202572%39
December 202560%47
January 202689%52
February 202672%50
March 202643%53
April 202647%51
May 202670%56
Departures on time
69%
Diverted
0.4%
Flights flown
489
Months covered
10

Keep nerding

Based on 507 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.