Location: US-380 and FM 51, Decatur At the next exit, exit for FM 730, which serves the airport. Location: US-380 and FM 51, Decatur Reassurance shield after the FM 51 interchange. Location: US-380 and Trinity St, Decatur Turn right for FM 730.  W to US-81/US-287, E to US-380 Bus  N to TX-FM1255, S to US-81 … Continue reading U.S. Route 380, TX-FM51 to TX-FM730