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Cheap Flights from St. Louis to Houston $246.65

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Cheapest Flights from St. Louis to Houston (STL to IAH)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from St. Louis to Houston (STL to IAH)

Question : How many days should you spend in Houston if you're flying in from Saint Louis?
Answer : Of course you're not most people, but if you were, you'd stay roughly five days.

Question : Which day has the most flight time options?
Answer : The day with the most departure times for this route is Monday with 20 options. Wednesday and Saturday currently offer the fewest flight times with 12 options.

Question : Which airline can you expect delays with on this route?
Answer : If you decide to book your flight with Trans States Airlines, keep an eye on your departure time. Trans States Airlines flights from Lambert-St. Louis International Airport (STL) to George Bush Intercontinental Airport (IAH) are late 47% of the time.

Question : Interested in traveling in the next 30 days and want to get the lowest fare?
Answer : As of January 16th, the best day for booking to Houston (IAH) from Saint Louis (STL) is February 15th. Bookings have been made roughly 18% below the average price for this route.