United Airlines has a $107 fare each way between Los Angeles and Miami for limited dates in August 2016. Round trip tickets are as low as $213.20 if you can find both dates. These low fare flights route via Houston IAH. The $107 fares are only found in August 2016. Google Flights fare calendar with low fare dates highlighted in images below.
United Airlines Los Angeles LAX – Houston IAH – Miami MIA
$213.20 Sunday August 7 – Tuesday August 16
Low fare dates highlighted in Google Flights August Fare Calendar
Los Angeles LAX – Miami MIA filtered for Star Alliance
August 1, 7, 17, 20, 21, 22
Miami MIA – Los Angeles LAX filtered for Star Alliance
August 16, 17, 18, 19, 20
This is a low summer August fare between Los Angeles and Miami at $107 on United. I give ticket price 4 stars and availability 2 stars on this fare.
You can always fly Frontier one-way, if difficulty finding two low fare dates with United.
Loyalty Traveler – Hotel Promotions Guide May 2016.