[08/17/2016 @ 3:43 PM] Deal is back.
American Airlines and United have round-trip flights from Houston (IAH) to Miami (MIA) for $87-$97, NONSTOP. $44 (Midweek) $54 (Other days) each way. Flights August to October. No Fridays. Holiday Blackouts apply. Fare is reversible. Carrier will depend on dates selected.
Note: When Miami goes on sale, you can usually find a matched sale to Fort Lauderdale (FLL). This may be helpful to you if the dates you want to Miami are already sold out since these airports are close together.