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Cheap Flights from Houston to St. Louis $243.67

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

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

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

Question : If having the most departure times is important to you, are there particular days that offer more options than others?
Answer : When you're flying from IAH to STL, the day with the most flight times is Thursday, with 89 different options. Note that Saturday offers the least number of options with 65 flight times.

Question : Who's offering the cheapest round-trip flight to Lambert-St. Louis International Airport (STL) over the coming months?
Answer : United Airlines has been booking passengers at the cheapest fare for flights scheduled throughout the next three months.

Question : Which airline can you expect delays with on this route?
Answer : Over the past month, GoJet Airlines is delayed on 100% of flights from George Bush Intercontinental Airport (IAH) to Lambert-St. Louis International Airport (STL). If you should choose this airline, be sure to track the flight status to stay on top of the departure time.

Question : If speed is all that matters, how can you get to Saint Louis as quickly as possible?
Answer : The fastest direct flight is 1 hour and 59 minutes via United Airlines. If you catch the 12:50 PM CST departure, you'll arrive at 2:49 PM CST.

Question : How many departure times from George Bush Intercontinental Airport (IAH) to Lambert-St. Louis International Airport (STL) are there on a daily basis?
Answer : On average, you can expect to see 17 available departure times for this route. Compared to the average route with 31 flight times, you won't have as many choices as other routes.

Question : Can you cut down on flight costs by changing the day of the week you travel to Saint Louis?
Answer : In December, Wednesday is your lowest-cost day to fly. Being flexible with your travel days garners you even more savings during your booking.