Cheap flights from Houston George Bush Intcntl Airport to St. Louis from $59

In general, January is the cheapest month to fly from Houston George Bush Intcntl Airport to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $303. The month of October is another great option to travel to St. Louis, with average flight prices from Houston George Bush Intcntl Airport averaging around $317.

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $290. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $410. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

Flying to St. Louis from Houston George Bush Intcntl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $336 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $377 per ticket.

Fly from Houston George Bush Intcntl to Lambert-St Louis for the best Houston George Bush Intcntl - Lambert-St Louis flight prices

You are more likely to see cheaper flights to St. Louis from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $383 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Houston George Bush Intcntl Airport for as low as $217 on momondo.

There are 3 cabin classes available to choose from on Houston George Bush Intcntl to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Houston George Bush Intcntl Airport to St. Louis.

As of March 2026, prices for Houston George Bush Intcntl Airport to St. Louis flights are approximately 24% cheaper when compared to flights at the same time last year.

United Airlines is the most popular carrier operating from Houston George Bush Intcntl to Lambert-St Louis

United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to St. Louis from Houston George Bush Intcntl Airport according to our data. United Airlines is the first choice among our users, with 79% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

Dallas (DFW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Orlando (MCO) offer the lowest average round-trip price of $230.

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 4h 22m.

Dallas (DFW) has the shortest average layover time for this route: 1h 01m.

The number of flights available between Houston George Bush Intcntl Airport and St. Louis is 9 per day as of March 2026. The most frequent departure time is 1:00PM, with 36% of daily flights leaving in the afternoon.

65 flights are operational weekly from Houston George Bush Intcntl Airport to St. Louis as of March 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.