AA678 MIA → IAH

American Airlines · Miami, FL to Houston, TX · 97 flights observed, 2025-07-01 to 2025-10-05 · 964 mi

This flight's reliability varies a lot by day of week — 69% on-time on Mondays vs. 29% on Tuesdays.

AA678 covers more than one route in the data window — the stats below are for MIA → IAH, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
55%
Median delay
+12 min
90th percentile
+99 min
Cancellation rate
1%

How often is AA678 on time?

Across 97 flights on MIA → IAH from 2025-07-01 to 2025-10-05, AA678 arrived within 15 minutes of schedule 55% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +99 min or later. 1% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time5355%
16-30 min1010%
31-60 min1516%
61-120 min99%
2+ hrs99%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073043%+41 min
2025-083148%+46 min
2025-093070%+16 min
2025-10580%+12 min

Performance by day of week

DayFlightsOn-time
Mon1369%
Tue1429%
Wed1464%
Thu1457%
Fri1464%
Sat1457%
Sun1346%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…