Cheap flights from Houston Hobby Airport to St. Louis from $116

In general, September is the cheapest month to fly from Houston Hobby Airport to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $234. The month of October is another great option to travel to St. Louis, with average flight prices from Houston Hobby Airport averaging around $256.

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $291. 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 $438. 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 Hobby Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $365 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $473 per ticket.

Fly from Houston Hobby to Lambert-St Louis for the best Houston Hobby - Lambert-St Louis flight prices

You are more likely to see cheaper flights to St. Louis from Houston Hobby Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $357 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 Hobby Airport for as low as $197 on momondo.

There is only 1 cabin class available to choose from on Houston Hobby Airport to 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 Hobby Airport to St. Louis.

As of June 2026, prices for Houston Hobby Airport to St. Louis flights are approximately 1% more expensive when compared to flights at the same time last year.

Southwest and Delta are the most popular carriers operating from Houston Hobby to Lambert-St Louis

Southwest, United Airlines and Frontier are the top three most popular airlines that fly to St. Louis from Houston Hobby Airport according to our data. Southwest is the first choice among our users, with 65% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

The number of flights available between Houston Hobby Airport and St. Louis is 4 per day as of June 2026. The most frequent departure time is 7:00AM, with 46% of daily flights leaving at noon.

As of June 2026, 30 flights take off from Houston Hobby Airport and land in St. Louis each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.