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WanderNerd

Flight Reliability

DL 374 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 374 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

72%
Arrive within 15 minutes
13 min
Average arrival delay
1.0%
Cancelled
2 min early
Median arrival delay

Based on 518 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(81 flights)
  • Tue75%(65 flights)
  • Wed81%(63 flights)
  • Thu79%(81 flights)
  • Fri73%(80 flights)
  • Sat70%(64 flights)
  • Sun57%(77 flights)
On-time by departure window
  • 12–3 PM75%(20 flights)
  • 3–6 PM70%(365 flights)
  • 6–9 PM76%(126 flights)
On-time trend by month
72%
May

Jun 38% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202538%29
July 202552%31
August 202567%52
September 202582%60
October 202577%61
November 202573%60
December 202575%55
January 202695%21
February 202672%25
March 202675%56
April 202675%36
May 202672%25
Departures on time
71%
Diverted
0.4%
Flights flown
511
Months covered
12

Based on 518 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.