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WanderNerd

Flight Reliability

DL 3774 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3774 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

93%
Arrive within 15 minutes
5 min early
Average arrival delay
0.7%
Cancelled
12 min early
Median arrival delay

Based on 306 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon93%(44 flights)
  • Tue93%(44 flights)
  • Wed91%(44 flights)
  • Thu93%(42 flights)
  • Fri98%(41 flights)
  • Sat89%(46 flights)
  • Sun93%(43 flights)
On-time by departure window
  • 6–9 AM90%(61 flights)
  • 9 AM–12 PM87%(61 flights)
  • 3–6 PM100%(10 flights)
  • 6–9 PM95%(170 flights)
  • 9 PM–12 AM(2 flights)
On-time trend by month
97%
May

Jul 93% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202593%44
August 202586%58
September 202585%20
December 2025100%14
January 202697%29
February 202693%28
March 202690%31
April 2026100%30
May 202697%31
Departures on time
91%
Diverted
0%
Flights flown
304
Months covered
12

Based on 306 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.