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WanderNerd

Flight Reliability

DL 5373 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5373 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

80%
Arrive within 15 minutes
7 min
Average arrival delay
2.4%
Cancelled
13 min early
Median arrival delay

Based on 292 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(35 flights)
  • Tue80%(60 flights)
  • Wed90%(61 flights)
  • Thu89%(28 flights)
  • Fri76%(29 flights)
  • Sat86%(43 flights)
  • Sun57%(28 flights)
On-time by departure window
  • 6–9 AM(6 flights)
  • 9 AM–12 PM92%(12 flights)
  • 12–3 PM85%(78 flights)
  • 3–6 PM78%(185 flights)
  • 6–9 PM(3 flights)
On-time trend by month
69%
Apr

Aug 91% → Apr 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202591%22
September 202585%34
October 202596%28
November 202571%28
December 202577%34
January 202687%31
February 202685%13
March 202668%41
April 202669%36
Departures on time
80%
Diverted
0.3%
Flights flown
284
Months covered
12

Based on 292 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.