Atlanta (ATL) to Pittsburgh (PIT): On-Time Performance
Data through July 2026
Atlanta (ATL) to Pittsburgh (PIT) effectively runs on two schedules. In November 2024, 95% of arrivals were on time; in July 2024 that fell to 64% — a 31-point seasonal swing. Across the full period the route averages 83% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 75%), which matters most in the rough months.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 1.6%
- Flights/day
- 7.5
- last 12 months
- Duration
- 1h 38m
- scheduled
- Distance
- 526 mi
Best airline from ATL to PIT
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 84% | 10 min | 0.3% | 681 |
| Delta Air Lines | 83% | 12 min | 1.8% | 5,136 |
Monthly on-time trend
Best time to fly from ATL to PIT
Aim for departures around 9 a.m. (94% on-time); avoid 8 p.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 14 min |
| Tuesday | 86% | 9 min |
| Wednesdaybest | 89% | 7 min |
| Thursday | 83% | 9 min |
| Friday | 81% | 13 min |
| Saturday | 85% | 12 min |
| Sunday | 77% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft28%
- Airline operations51%
- National airspace system16%
- Weather5%
- Security1%
Frequently asked questions
- How often are flights from ATL to PIT delayed?
- 17% of ATL–PIT flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 12 minutes.
- Which airline is most reliable from ATL to PIT?
- Southwest Airlines has the best on-time record on this route at 84%, based on 681 flights. 2 airlines flew ATL–PIT frequently enough to compare in this period.
- What is the best time of day to fly from ATL to PIT?
- Departures around 9 a.m. have the best record (94% on-time), while departures around 8 p.m. have the worst (66%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to PIT?
- The scheduled ATL–PIT flight time averages 1h 38m over 526 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are ATL to PIT flights cancelled?
- 1.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from ATL to PIT?
- July 2024 was the roughest month in this dataset, with only 64% of arrivals on time. The best was November 2024 at 95%. If your dates are flexible, that 31-point gap is worth planning around.
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Based on 5,848 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.