Cheap flights from Houston to St. Louis from $87
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to St. Louis departing on 7/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from Houston to St. Louis
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How to get the cheapest flight ticket from Houston to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Houston and St. Louis?
What is the cheapest month to fly to St. Louis?
In general, April is the cheapest month to fly from Houston to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $264. The month of August is another great option to travel to St. Louis, with average flight prices from Houston averaging around $322.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $312. 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 $468. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Houston at noon is the least expensive time of day to depart. momondo users have found prices as low as $365 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $389 per ticket.
What is the cheapest Houston to Lambert-St Louis flight route?
Fly from Houston George Bush Intcntl to Lambert-St Louis for the best Houston - Lambert-St Louis flight prices
How far in advance should I book a flight to St. Louis?
You are more likely to see cheaper flights to St. Louis from Houston when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $353 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Houston for as low as $253 on momondo.
What cabin class options are available on Houston to Lambert-St Louis flights?
There are 4 cabin classes available to choose from on Houston 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.
What is the cheapest airline that flies from Houston to Lambert-St Louis?
Spirit Airlines, American Airlines, and Southwest are the most popular carriers operating from Houston to Lambert-St Louis
What airlines fly to St. Louis?
United Airlines, Southwest and Frontier are the top three most popular airlines that fly to St. Louis from Houston according to our data. United Airlines is the first choice among our users, with 45% 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.
How many flights depart from Houston to St. Louis on average per day?
The number of flights available between Houston and St. Louis is 18 per day as of June 2025. The most frequent departure time is 8:00PM, with 45% of daily flights leaving in the evening.
How many flights depart from Houston to St. Louis on average per week?
The number of flights available between Houston and St. Louis is 127 per week as of June 2025. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.
Cheap Houston to St. Louis flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Houston to St. Louis
How far is Houston to Lambert-St Louis by plane?
Houston and Lambert-St Louis are 679.6 mi apart from one another. Typically, this will take 1h 55m by plane in normal conditions.
When did momondo last update prices for flights from Houston to Lambert-St Louis Airport?
Prices for flights from Houston to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Houston to Lambert-St Louis Airport?
The number of operators available for flights from Houston to Lambert-St Louis Airport is 4 as of June 2025.
How old do you have to be to fly from Houston to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Houston to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Houston to St. Louis
Compare and see reviews for airlines that fly from Houston to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $106 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $180 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $217 | Free Cancellation | Rating 8.0 4,287 reviews | |||
| PriceFrom $239 | Free Cancellation | Rating 7.4 8,790 reviews |
Traveling to a place near St. Louis?
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Why should I use momondo to find a flight deal from Houston to St. Louis?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Houston.
Can I find flights from Houston to St. Louis with flexible booking policies on momondo?
All flight searches from Houston to St. Louis on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Houston to St. Louis?
momondo provides multiple filters to help you find the best flight to St. Louis from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Houston to St. Louis right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Houston to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.