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Ranking & search details
10 nonstop, 30 with 1 connection, 6 with 2 · ranked by overall best · 11 hidden by your Most reliable time setting (they leave at other times of day) · showing the top 3
Most reliable time: morning departures (5–11 AM), the window with the best on-time odds for this trip. Turn off “Most reliable” under Departure time in Advanced settings to see every time.
Fares seen on this date: nonstop from 173 · any route from 139 (recent searches, one way, per person; each card opens the live price)
35 matching trips
Why this is our top pick
- This morning flight leaves in the most reliable time of day on this route: its best departures have an 83% reliability rating vs 67% for midday departures.
- It has the same 30 in of legroom as the next-best option (American 1417 on the Airbus A319); it flies a newer plane (about 14 vs 26 years old).
7:05 AM12:18 PMMIA → AUS
Delta · DL 1211 / DL 2011
6h 09m1 stop
1h 30m in ATL
One ticket
84%arrive on time93% connections madeCheck fares
Aircraft and legroom reflect the planes each flight has flown recently. Airlines can swap planes and seat maps change, so check the airline’s seat map when you book.
MIA → AUS
Miami to Austin: 2,131 nonstop flights a year
On time (12 months)
73%
Cancelled
1.1%
avg delay 20 min
Best time to leave
Before 9 AM
92% on time vs 64% 3 to 6 PM
Most reliable airline
American
73% chance on time
Lowest nonstop fare seen in the next two months: $173 (Southwest 1774 on 2026-11-02). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- American Airlines73%
1,510 flights · 74% on time as flown · 1.4% cancel
- Southwest Airlines70%
348 flights · 69% on time as flown · 0.5% cancel
- Delta Air Lines68%
192 flights · 67% on time as flown · 1.1% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM92%
418 flights · avg delay 6 min
- 9 AM to noon75%
87 flights · avg delay 14 min
- Noon to 3 PM70%
441 flights · avg delay 18 min
- 3 to 6 PM64%
296 flights · avg delay 27 min
- 6 to 9 PM70%
559 flights · avg delay 26 min
- After 9 PM68%
330 flights · avg delay 28 min
Best day: Tuesday (79%). Worst: Sunday (67%).
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