Located just west of the Lambert-St. Louis International Airport, you don’t have to go far to explore everything that makes Ameristar an exceptional experience in historic St. A stay at Ameristar Casino Resort and Spa (St. Charles) places you in the heart of St. Charles, steps from Ameristar Casino St. Charles and a 4-minute drive from Family Arena. This 4.5-star hotel is 2.1 mi (3.4 km) from Lindenwood University and 2.2 mi (3.5 km) from Katy Trail. Popular Hotel Amenities and Features. Ameristar Casino St. Charles, Saint Charles: Address, Phone Number, Ameristar Casino St. Charles Reviews: 4/5. 1 Ameristar Blvd, Saint Charles, MO.