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Route on-time record

AUS to MIA: most on-time flights and the best time to fly

Austin (Austin Bergstrom International Airport) to Miami (Miami International Airport). 2,131 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 1.3% were cancelled. The most reliable flight number was American 406 at 5:10 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

AUS → MIA

Austin to Miami: 2,131 nonstop flights a year

On time (12 months)

78%

Cancelled

1.3%

avg delay 16 min

Best time to leave

Before 9 AM

89% on time vs 63% 3 to 6 PM

Most reliable airline

Delta

84% chance on time

Check AUS to MIA fares

Lowest nonstop fare seen in the next two months: $278 (Southwest 2893 on 2026-10-20). 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. #1 · American 406

    5:10 AM → 8:59 AM2h 49m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1593; its record covers all of them.

    91%

    chance on time

    On time (history)
    93%
    Cancelled
    1.6%
    Avg arrival delay
    6 min
    • Arrived on time 93% of the time (359 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 89% on time; 3 to 6 PM: 63%).
    • 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 · 359 flights

    Find American 406 fares Opens this date on Aviasales

  2. #2 · Delta 2507

    9:00 AM → 12:33 PM2h 42m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    87%

    chance on time

    On time (history)
    89%
    Cancelled
    1.6%
    Avg arrival delay
    10 min
    • Arrived on time 89% of the time (188 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).

    Moderate track record · 188 flights

    Find Delta 2507 fares Opens this date on Aviasales

  3. #3 · American 2294

    7:00 AM → 10:53 AM2h 53m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    85%

    chance on time

    On time (history)
    86%
    Cancelled
    1.1%
    Avg arrival delay
    11 min
    • Arrived on time 86% of the time (174 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 89% on time; 3 to 6 PM: 63%).
    • Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).

    Moderate track record · 174 flights

    Find American 2294 fares Opens this date on Aviasales

  4. #4 · American 1417

    10:45 AM → 2:37 PM2h 52m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1823; its record covers all of them.

    84%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 91% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
    • Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.

    Limited track record · 54 flights

    Find American 1417 fares Opens this date on Aviasales

  5. #5 · American 1483

    7:10 AM → 11:02 AM2h 52m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    84%

    chance on time

    On time (history)
    86%
    Cancelled
    2.0%
    Avg arrival delay
    13 min
    • Arrived on time 86% of the time (145 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 89% on time; 3 to 6 PM: 63%).
    • Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).

    Moderate track record · 145 flights

    Find American 1483 fares Opens this date on Aviasales

  6. #6 · American 2708

    10:33 AM → 2:20 PM2h 47m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    80%

    chance on time

    On time (history)
    83%
    Cancelled
    1.2%
    Avg arrival delay
    10 min
    • Arrived on time 83% of the time (81 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 MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
    • 50% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 81 flights

    Find American 2708 fares Opens this date on Aviasales

  7. #7 · American 620

    4:12 PM → 8:05 PM2h 53m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    72%

    chance on time

    On time (history)
    71%
    Cancelled
    0.0%
    Avg arrival delay
    34 min
    • Arrived on time 71% of the time (77 flights, Jun 2025 to May 2026).
    • Never cancelled in 77 scheduled flights.
    • Leaves in this route's least on-time window (3 to 6 PM: 63% on time; Before 9 AM: 89%).
    • Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).

    Moderate track record · 77 flights

    Find American 620 fares Opens this date on Aviasales

  8. #8 · American 1121

    6:36 PM → 10:25 PM2h 49m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    70%

    chance on time

    On time (history)
    72%
    Cancelled
    3.3%
    Avg arrival delay
    25 min
    • Arrived on time 72% of the time (29 flights, Jun 2025 to May 2026).
    • Cancelled 3.3% of the time (1 of 30).
    • Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
    • 69% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 29 flights

    Find American 1121 fares Opens this date on Aviasales

  9. #9 · American 1352

    6:25 PM → 10:10 PM2h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    69%

    chance on time

    On time (history)
    75%
    Cancelled
    0.0%
    Avg arrival delay
    19 min
    • Arrived on time 75% of the time (44 flights, Jun 2025 to May 2026).
    • Never cancelled in 44 scheduled flights.
    • Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
    • 83% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 44 flights

    Find American 1352 fares Opens this date on Aviasales

  10. #10 · American 1411

    6:10 PM → 10:05 PM2h 55m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    67%

    chance on time

    On time (history)
    64%
    Cancelled
    0.0%
    Avg arrival delay
    27 min
    • Arrived on time 64% of the time (11 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 (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find American 1411 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Delta Air Lines84%

    191 flights · 89% on time as flown · 1.5% cancel

  • American Airlines79%

    1,509 flights · 80% on time as flown · 1.4% cancel

  • Frontier Airlines76%

    55 flights · 74% on time as flown · 1.4% cancel

  • Southwest Airlines68%

    349 flights · 67% on time as flown · 0.8% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM89%

    798 flights · avg delay 9 min

  • 9 AM to noon82%

    585 flights · avg delay 14 min

  • Noon to 3 PM64%

    190 flights · avg delay 23 min

  • 3 to 6 PM63%

    235 flights · avg delay 24 min

  • 6 to 9 PM64%

    321 flights · avg delay 31 min

Best day: Tuesday (83%). Worst: Sunday (74%).

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.

J
77
F
86
M
73
A
80
M
74
J
74
J
74
A
70
S
86
O
82
N
81
D
78

What delays this route

  • Late-arriving aircraft44%
  • Airline (crew, maintenance, boarding)35%
  • Air traffic control and airport volume18%
  • Severe weather2%

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 MIA questions

What time of day is best to fly AUS to MIA?
Before 9 AM: 89% of flights arrived on time, against 63% 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 MIA?
Delta, with a season-adjusted 84% chance of operating and arriving on time over 191 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 MIA?
August (70% on time); the best was September (86%), 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

Live status: FAA delays and ground stops