Route on-time record
AUS to ATL: most on-time flights and the best time to fly
Austin (Austin Bergstrom International Airport) to Atlanta (Hartsfield Jackson Atlanta International Airport). 4,565 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was Delta 1344 at 5:25 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
AUS → ATL
Austin to Atlanta: 4,565 nonstop flights a year
On time (12 months)
81%
Cancelled
1.6%
avg delay 13 min
Best time to leave
Before 9 AM
93% on time vs 68% 3 to 6 PM
Most reliable airline
Delta
83% chance on time
Lowest nonstop fare seen in the next two months: $83 (Frontier 4702 on 2026-11-25). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Delta 1344
5:25 AM → 8:35 AM2h 17m nonstop
Local times, typical schedule. Last flown 2026-05-31.
95%
chance on time
- On time (history)
- 97%
- Cancelled
- 1.6%
- Avg arrival delay
- 6 min
- Arrived on time 97% of the time (357 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 68%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
Strong track record · 357 flights
Find Delta 1344 fares Opens this date on Aviasales#2 · Delta 1258
6:30 AM → 9:45 AM2h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
91%
chance on time
- On time (history)
- 92%
- Cancelled
- 1.9%
- Avg arrival delay
- 8 min
- Arrived on time 92% of the time (358 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 68%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
Strong track record · 358 flights
Find Delta 1258 fares Opens this date on Aviasales#3 · Southwest 781
9:20 AM → 12:30 PM2h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 91% of the time (23 flights, Jun 2025 to May 2026).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 781 fares Opens this date on Aviasales#4 · Southwest 2433
8:40 AM → 11:50 AM2h 10m nonstop
Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 2892; its record covers all of them.
89%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 92% of the time (51 flights, Jun 2025 to May 2026).
- Never cancelled in 51 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 68%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
Limited track record · 51 flights
Find Southwest 2433 fares Opens this date on Aviasales#5 · Delta 2976
10:40 AM → 1:55 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 90%
- Cancelled
- 1.9%
- Avg arrival delay
- 6 min
- Arrived on time 90% of the time (357 flights, Jun 2025 to May 2026).
- Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 357 flights
Find Delta 2976 fares Opens this date on Aviasales#6 · Delta 2899
8:25 AM → 11:35 AM2h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.8%
- Avg arrival delay
- 10 min
- Arrived on time 89% of the time (360 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 68%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
Strong track record · 360 flights
Find Delta 2899 fares Opens this date on Aviasales#7 · Delta 2011
1:24 PM → 4:38 PM2h 16m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 86%
- Cancelled
- 1.4%
- Avg arrival delay
- 11 min
- Arrived on time 86% of the time (272 flights, Jun 2025 to May 2026).
- Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 272 flights
Find Delta 2011 fares Opens this date on Aviasales#8 · Delta 2886
12:27 PM → 3:42 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Delta 2885; its record covers all of them.
82%
chance on time
- On time (history)
- 83%
- Cancelled
- 1.6%
- Avg arrival delay
- 9 min
- Arrived on time 83% of the time (311 flights, Jun 2025 to May 2026).
- Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 311 flights
Find Delta 2886 fares Opens this date on Aviasales#9 · Delta 1722
3:55 PM → 7:12 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-04-12.
80%
chance on time
- On time (history)
- 77%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 77% of the time (31 flights, Jun 2025 to May 2026).
- Never cancelled in 31 scheduled flights.
- Leaves in this route's least on-time window (3 to 6 PM: 68% on time; Before 9 AM: 93%).
- Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
Limited track record · 31 flights
Find Delta 1722 fares Opens this date on Aviasales#10 · Delta 2104
2:40 PM → 5:52 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 77%
- Cancelled
- 1.4%
- Avg arrival delay
- 14 min
- Arrived on time 77% of the time (346 flights, Jun 2025 to May 2026).
- Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 346 flights
Find Delta 2104 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines83%
3,263 flights · 85% on time as flown · 1.6% cancel
- Southwest Airlines77%
1,036 flights · 78% on time as flown · 0.8% cancel
- Frontier Airlines54%
265 flights · 50% on time as flown · 3.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM93%
1,235 flights · avg delay 8 min
- 9 AM to noon92%
646 flights · avg delay 5 min
- Noon to 3 PM80%
1,119 flights · avg delay 13 min
- 3 to 6 PM68%
1,093 flights · avg delay 22 min
- 6 to 9 PM69%
472 flights · avg delay 21 min
Best day: Tuesday (87%). Worst: Sunday (78%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft48%
- Airline (crew, maintenance, boarding)27%
- Air traffic control and airport volume21%
- Severe weather4%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
AUS to ATL questions
- What time of day is best to fly AUS to ATL?
- Before 9 AM: 93% of flights arrived on time, against 68% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from AUS to ATL?
- Delta, with a season-adjusted 83% chance of operating and arriving on time over 3,263 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on AUS to ATL?
- May (73% on time); the best was September (91%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from AUS
- ATL to AUS (return)
- AUS to DEN 78%
- AUS to DFW 73%
- AUS to LAX 82%
- AUS to PHX 79%
- AUS to ORD 73%
- AUS to BNA 77%
- AUS to LAS 75%
- AUS to SFO 76%
- AUS to MCO 73%
- AUS to IAH 76%
- AUS to SAN 75%
- AUS to DAL 78%
Live status: FAA delays and ground stops