ATL to PIT flight delays
Atlanta, GA (ATL) Pittsburgh, PA (PIT) · 526 miles
2,777 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
84.55%
Arrived on time
Within 15 minutes of schedule
2.02%
Cancelled
Share of scheduled flights
55 min
When late, late by
Average across delayed arrivals
9 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The two directions do not behave alike. PIT to ATL arrives on time 5.7 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Flights from Atlanta to Pittsburgh keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
The 2 airlines here are separated by under 4 points — close enough to call a tie. Choose on price and departure time.
Which airline should you fly on this route?
Over January 2025 – August 2026, Delta Air Lines arrived on time most often on ATL to PIT. Southwest Airlines was late most often. Flights ran closest to schedule in September and worst in December.
Every airline on ATL to PIT
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 2,475 | 84.9% | 2.22% | 55 min | B |
| Southwest Airlines | 302 | 81.73% | 0.33% | 55 min | B |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
PIT to ATL Pittsburgh back to Atlanta 90.28% on time AOther routes from Atlanta
Common questions
Are flights from Atlanta to Pittsburgh usually delayed?
84.55% of flights on the ATL to PIT route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airline is most on time from Atlanta to Pittsburgh?
Delta Air Lines, at 84.9% on time across 2,475 flights. The least punctual on the route was Southwest Airlines at 81.73%.
How often are ATL to PIT flights cancelled?
2.02% of scheduled flights did not operate — about 20 in every thousand. That is in the normal range.
What is the best month to fly Atlanta to Pittsburgh?
September, when 89.4% of flights arrived on time. The worst was December at 76.8%.
When ATL to PIT flights are late, how late are they?
About 55 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on ATL to PIT during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →