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Flight Reliability

DL 373 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 373 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
3 min
Average arrival delay
1.9%
Cancelled
8 min early
Median arrival delay

Based on 377 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(65 flights)
  • Tue86%(36 flights)
  • Wed91%(35 flights)
  • Thu78%(68 flights)
  • Fri82%(68 flights)
  • Sat90%(31 flights)
  • Sun76%(67 flights)
On-time by departure window
  • 3–6 PM76%(123 flights)
  • 9 PM–12 AM82%(247 flights)
On-time trend by month
90%
May

Jun 66% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202566%53
July 202580%56
August 202589%26
September 202575%24
October 202569%36
November 202589%28
December 202585%27
January 2026100%20
February 202695%20
March 202680%30
April 202670%30
May 202690%20
Departures on time
79%
Diverted
0%
Flights flown
370
Months covered
12

Keep nerding

Based on 377 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.