Austin (AUS) to Atlanta (ATL): On-Time Performance
Data through July 2026
When you fly AUS to ATL matters as much as anything else about the booking: the route swung from 91% on-time in September 2025 to just 64% in July 2024. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 67%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 12
- last 12 months
- Duration
- 2h 17m
- scheduled
- Distance
- 813 mi
Best airline from AUS to ATL
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 84% | 13 min | 1.5% | 6,521 |
| Southwest Airlines | 80% | 12 min | 0.7% | 2,350 |
| Frontier Airlines | 48% | 43 min | 3.2% | 443 |
Monthly on-time trend
Best time to fly from AUS to ATL
Aim for departures around 9 a.m. (96% on-time); avoid 7 p.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 16 min |
| Tuesday | 86% | 12 min |
| Wednesdaybest | 86% | 9 min |
| Thursday | 81% | 12 min |
| Friday | 78% | 17 min |
| Saturday | 84% | 12 min |
| Sunday | 75% | 20 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft44%
- Airline operations30%
- National airspace system22%
- Weather4%
Frequently asked questions
- How often are flights from AUS to ATL delayed?
- 19% of AUS–ATL 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 14 minutes.
- Which airline is most reliable from AUS to ATL?
- Delta Air Lines has the best on-time record on this route at 84%, based on 6,521 flights. 3 airlines flew AUS–ATL frequently enough to compare in this period.
- What is the best time of day to fly from AUS to ATL?
- Departures around 9 a.m. have the best record (96% on-time), while departures around 7 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 AUS to ATL?
- The scheduled AUS–ATL flight time averages 2h 17m over 813 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are AUS to ATL flights cancelled?
- 1.4% 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 AUS to ATL?
- July 2024 was the roughest month in this dataset, with only 64% of arrivals on time. The best was September 2025 at 91%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 9,318 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.