Miami to Washington DC or Vice Versa $132 on American Airlines (travel Sept-Nov) Nonstop

American Airlines have round trip airfares travelling to and from Miami (MIA) and Washington DC (IAD) for $132 including taxes and fees. This is nonstop service.
Travel Availability:
Departs MIA: Sept 7, 14, 21, 28; Oct 5, 12, 13, 19, 20, 26; Nov 2, 9, 16, 24, 30; Dec 1, 2, 6, 7, 8.
Departs IAD: Sept 9, 16, 23, 30; Oct 9, 16; Nov 11, 20, 28; Dec 2, 4, 9, 10, 11
Returns: wider availability returns if you depart on those dates.
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Sample attached.