Our data suggests that currently, the cheapest flights from St. Louis are being offered by American Airlines, Cape Air, and Frontier. For example, American Airlines flights from St. Louis to Atlanta, start at $38, Cape Air flights from St. Louis to Owensboro cost around $45, and Frontier flights from St. Louis to Orlando Sanford Intl Airport are around $50.
Currently, the cheapest flight from St. Louis found by our users is for $47 to Minneapolis. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $1,238 to travel from St. Louis to Minneapolis.