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Flight Reliability

DL 1274 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1274 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

91%
Arrive within 15 minutes
3 min early
Average arrival delay
1.1%
Cancelled
16 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon98%(51 flights)
  • Tue85%(52 flights)
  • Wed96%(52 flights)
  • Thu85%(52 flights)
  • Fri92%(51 flights)
  • Sat92%(51 flights)
  • Sun87%(52 flights)
On-time by departure window
  • 6–9 AM93%(338 flights)
  • 3–6 PM—(7 flights)
  • 6–9 PM50%(16 flights)
On-time trend by month
87%
May

Jun 90% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 2025100%31
August 2025100%31
September 202587%30
October 202597%31
November 202593%29
December 202574%31
January 202687%31
February 202689%28
March 202693%29
April 202690%30
May 202687%30
Departures on time
91%
Diverted
0%
Flights flown
361
Months covered
12

Keep nerding

Based on 365 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.