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Flight Reliability

DL 1383 · Delta Air Lines

Pittsburgh → Atlanta (PIT–ATL)

86
Pretty Reliable
WanderNerd Reliability Score
94%
Arrive within 15 minutes
8 min early
Average arrival delay
3.1%
Cancelled
14 min early
Median arrival delay

Based on 355 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 1383 arrived on time 98% of the time on Fridays. On Sundays: 90%.

A bit ahead of the PIT–ATL route.

DL 1383 arrived on time 94% of the time, versus 90% across the PIT–ATL route.

Better than the Delta Air Lines network average.

DL 1383 arrived on time 94% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 1383 was cancelled 3.1% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon92%(49 flights)
  • Tue96%(47 flights)
  • Wed94%(49 flights)
  • Thu92%(49 flights)
  • Fri98%(49 flights)
  • Sat96%(49 flights)
  • Sun90%(49 flights)
On-time by departure window
  • 6–9 AM94%(339 flights)
  • 9 AM–12 PM—(2 flights)
On-time trend by month
100%
May

Jun 93% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%29
July 202597%31
August 2025100%29
September 202597%30
October 202585%27
November 2025100%22
December 202586%29
January 202686%29
February 202689%28
March 202696%28
April 202696%28
May 2026100%31
Departures on time
93%
Diverted
0.8%
Flights flown
341
Months covered
12

Same route, other flights

Keep nerding

Based on 355 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.