The route from Saint Louis to Chennai is one of the busiest between the United States and India. Both cities are renowned for their mutual interests across various sectors. A significant portion of visitors to Chennai hail from Saint Louis, and this number is expected to grow as cheap flights from Saint Louis to Chennai become more available. For the best STL to MAA flights and the lowest fares, Indian Eagle is the go-to resource. Find flights from STL to Chennai and book your tickets today