BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ATL→PIT

Atlanta, GA (ATL) to Pittsburgh, PA (PIT) flight delay odds

82.8% of 2,777 official scheduled ATL-to-PIT flights arrived on time; 9.1% arrived at least 30 minutes late and 2.0% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
82.8%arrived on time
9.1%30+ min late
2.0%cancelled
2,777scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.3%all scheduled flights
120+ minutes late1.4%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+2.6 mincompleted flights

Which departure time was most reliable for ATL to PIT?

Among qualifying ATL-to-PIT departure window results, Early morning had the highest on-time rate: 88.9% of 405 flights. Evening was lowest at 73.7% across 482 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning40588.9%4.4%2.7%
Late morning60288.4%6.6%2.0%
Afternoon92282.6%7.7%1.3%
Evening48273.7%16.6%2.9%
Night36679.0%12.3%1.9%

Which weekday was most reliable for ATL to PIT?

Among qualifying ATL-to-PIT weekday results, Wednesday had the highest on-time rate: 90.4% of 374 flights. Sunday was lowest at 73.8% across 424 flights.

DayFlightsOn time30+ minCancelled
Monday42680.5%12.0%1.4%
Tuesday38484.6%8.6%1.0%
Wednesday37490.4%6.4%0.3%
Thursday42084.0%7.9%1.2%
Friday42383.9%8.0%1.9%
Saturday32683.1%8.9%2.5%
Sunday42473.8%11.8%5.7%

Which airline was most reliable for ATL to PIT?

Among qualifying ATL-to-PIT airline results, Delta Air Lines had the highest on-time rate: 82.9% of 2,475 flights. Southwest Airlines was lowest at 81.5% across 302 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines2,47582.9%9.2%2.2%
Southwest Airlines30281.5%8.9%0.3%

Which month was most reliable for ATL to PIT?

Among qualifying ATL-to-PIT month results, September 2025 had the highest on-time rate: 89.4% of 235 flights. December 2025 was lowest at 74.1% across 228 flights.

MonthFlightsOn time30+ minCancelled
July 202525080.8%11.6%0.8%
August 202524682.9%9.3%2.8%
September 202523589.4%5.1%0.0%
October 202525186.5%7.2%0.0%
November 202521782.0%9.7%3.2%
December 202522874.1%13.6%3.5%
January 202621779.3%7.8%5.5%
February 202621086.7%8.6%0.0%
March 202623577.9%10.2%4.7%
April 202622286.9%5.4%0.9%
May 202624380.2%14.0%1.2%
June 202622386.5%6.7%1.8%

What drove ATL to PIT delay minutes?

Airline was the largest recorded ATL-to-PIT delay category, accounting for 47.5% of 23,113 BTS-attributed delay minutes during July 2025–June 2026.

Airline47.5%
Late aircraft31.3%
National airspace15.9%
Weather4.8%
Security0.5%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.