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Flight Reliability

DL 1334 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1334 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

90%
Arrive within 15 minutes
2 min early
Average arrival delay
1.6%
Cancelled
10 min early
Median arrival delay

Based on 487 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon89%(71 flights)
  • Tue93%(69 flights)
  • Wed90%(67 flights)
  • Thu94%(70 flights)
  • Fri90%(69 flights)
  • Sat91%(63 flights)
  • Sun86%(69 flights)
On-time by departure window
  • 6–9 AM89%(332 flights)
  • 9 AM–12 PM93%(146 flights)
On-time trend by month
86%
May

Jun 98% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202598%47
July 202582%51
August 202584%62
September 2025100%55
October 202597%34
November 202596%27
December 202585%40
January 202684%31
February 202689%37
March 202692%36
April 202690%30
May 202686%28
Departures on time
90%
Diverted
0.2%
Flights flown
478
Months covered
12

Keep nerding

Based on 487 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.