Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 379 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 379 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

84%
Arrive within 15 minutes
2 min
Average arrival delay
5.6%
Cancelled
8 min early
Median arrival delay

Based on 590 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(75 flights)
  • Tue78%(82 flights)
  • Wed89%(83 flights)
  • Thu87%(79 flights)
  • Fri81%(79 flights)
  • Sat89%(75 flights)
  • Sun84%(79 flights)
On-time by departure window
  • 6–9 AM87%(335 flights)
  • 9 AM–12 PM80%(152 flights)
  • 12–3 PM79%(65 flights)
On-time trend by month
85%
May

Jun 81% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%58
July 202588%58
August 202584%37
September 202597%30
October 202587%31
November 202587%30
December 202584%38
January 202685%52
February 202670%50
March 202676%54
April 202689%53
May 202685%61
Departures on time
88%
Diverted
0.8%
Flights flown
552
Months covered
12

Keep nerding

Based on 590 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.