Skip to content
WanderNerd

Flight Reliability

DL 790 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 790 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
16 min
Average arrival delay
2.4%
Cancelled
6 min early
Median arrival delay

Based on 373 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(54 flights)
  • Tue84%(50 flights)
  • Wed76%(50 flights)
  • Thu59%(53 flights)
  • Fri72%(54 flights)
  • Sat76%(50 flights)
  • Sun70%(53 flights)
On-time by departure window
  • 9 AM–12 PM83%(29 flights)
  • 12–3 PM89%(56 flights)
  • 3–6 PM68%(197 flights)
  • 6–9 PM69%(75 flights)
  • 9 PM–12 AM(7 flights)
On-time trend by month
62%
May

Jun 50% → May 62% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%30
July 202550%28
August 202560%30
September 202580%30
October 202580%30
November 202572%29
December 202573%26
January 202696%27
February 202684%45
March 202682%38
April 202667%30
May 202662%21
Departures on time
68%
Diverted
0%
Flights flown
364
Months covered
12

Based on 373 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.