Generally the best time to book Houston to Saint Louis flights is two months in advance. And the cheapest days to fly are Tuesdays, Wednesdays, and Saturdays. Sunday is the most expensive.
There are 33 direct flights from Houston to Saint Louis.
United Airlines provides 100 of the non-stop flights between Houston and Saint Louis.
|Airlines flying this route:||Southwest Airlines Copa Airlines ANA United Airlines Air New Zealand|
|Airports in Houston:||George Bush Intercontinental Airport William P. Hobby Airport|
|Airports in Saint Louis:||St.Louis Lambert International Airport St. Louis Downtown Airport|
|Average duration of direct flights:||2h6m|