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Flight Reliability

DL 334 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 334 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

85%
Arrive within 15 minutes
2 min
Average arrival delay
0.9%
Cancelled
5 min early
Median arrival delay

Based on 545 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(76 flights)
  • Tue87%(78 flights)
  • Wed92%(78 flights)
  • Thu82%(77 flights)
  • Fri83%(77 flights)
  • Sat83%(76 flights)
  • Sun81%(78 flights)
On-time by departure window
  • 6–9 AM86%(244 flights)
  • 9 AM–12 PM84%(295 flights)
  • 12–3 PM—(1 flights)
On-time trend by month
90%
May

Jun 87% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%60
July 202573%37
August 202587%31
September 202587%30
October 202594%31
November 202579%28
December 202562%29
January 202669%58
February 202695%56
March 202690%62
April 202691%58
May 202690%60
Departures on time
89%
Diverted
0%
Flights flown
540
Months covered
12

Keep nerding

Based on 545 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.