RATABET RTP SLOT The only remaining route from the Air California and Reno Air purchases is from San Francisco to Los Angeles. Miami International Airport became a hub after American Airlines bought Central and South American routes ("El Interamericano") from Eastern Air Lines in 1990 (inherited from Braniff International Airways but originated by Pan American-Grace Airways which was known as Panagra). In 1991, American Airlines bought the assets of TWA's operations at London Heathrow for $445 million.|The Special Modification Allowed Switching In