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Flight Reliability

DL 2583 · Delta Air Lines

Atlanta → Pittsburgh (ATL–PIT)95% of its flights flew this route. The rest (PIT–ATL) are included in these numbers.

71
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
9 min
Average arrival delay
3.2%
Cancelled
4 min early
Median arrival delay

Based on 250 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 2583 departing between 6–9 PM arrived on time 77% of the time, versus 67% between 3–6 PM.

Saturdays have been rough.

DL 2583 arrived on time 84% of the time on Tuesdays and just 65% on Saturdays. That gap is worth planning around.

Lagging the ATL–PIT route.

DL 2583 arrived on time 76% of the time, versus 84% across the ATL–PIT route.

A bit behind the Delta Air Lines network.

DL 2583 arrived on time 76% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon83%(46 flights)
  • Tue84%(25 flights)
  • Wed73%(22 flights)
  • Thu68%(41 flights)
  • Fri78%(45 flights)
  • Sat65%(17 flights)
  • Sun76%(46 flights)
On-time by departure window
  • 3–6 PM67%(33 flights)
  • 6–9 PM77%(207 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
68%
May

Jun 50% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%26
July 202563%19
August 202571%14
September 202592%13
October 202575%16
November 202580%15
December 202579%28
January 202692%26
February 202677%13
March 202682%22
April 202688%25
May 202668%25
Departures on time
77%
Diverted
0%
Flights flown
242
Months covered
12

Same route, other flights

Keep nerding

Based on 250 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.