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Flight Reliability

DL 1594 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1594 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

65%
Arrive within 15 minutes
17 min
Average arrival delay
1.6%
Cancelled
3 min
Median arrival delay

Based on 635 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon65%(97 flights)
  • Tue68%(87 flights)
  • Wed79%(84 flights)
  • Thu65%(95 flights)
  • Fri64%(90 flights)
  • Sat65%(72 flights)
  • Sun47%(97 flights)
On-time by departure window
  • 3–6 PM63%(355 flights)
  • 6–9 PM66%(267 flights)
On-time trend by month
64%
May

Jun 42% → May 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202542%55
July 202540%55
August 202569%61
September 202573%51
October 202564%47
November 202565%40
December 202565%46
January 202655%44
February 202686%50
March 202670%56
April 202681%58
May 202664%59
Departures on time
63%
Diverted
0.5%
Flights flown
622
Months covered
12

Keep nerding

Based on 635 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.