Cheap flights from Houston George Bush Intcntl Airport to St. Louis from $73
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 George Bush Intcntl Airport to St. Louis departing on 9/6. 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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Spirit Airlines flights from Houston George Bush Intcntl Airport to St. Louis
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United Airlines flights from Houston George Bush Intcntl Airport to St. Louis
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How to get the cheapest flight ticket from Houston George Bush Intcntl Airport 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 cheapest month to fly to St. Louis?
In general, August 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 $290. The month of July is another great option to travel to St. Louis, with average flight prices from Houston George Bush Intcntl Airport averaging around $329.
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 George Bush Intcntl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $370 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 $386 per ticket.
What is the cheapest Houston George Bush Intcntl to Lambert-St Louis flight route?
Fly from Houston George Bush Intcntl to Lambert-St Louis for the best Houston George Bush Intcntl - 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 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 $380 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 $268 on momondo.
What cabin class options are available on Houston George Bush Intcntl to Lambert-St Louis flights?
There are 4 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.
Can stopping save me money on Houston George Bush Intcntl Airport to St. Louis flights?
No. A direct flight is the cheapest option for a flight between Houston George Bush Intcntl Airport to St. Louis.
How have Houston George Bush Intcntl Airport to St. Louis flight prices changed over time?
As of June 2025, prices for Houston George Bush Intcntl Airport to St. Louis flights are approximately 30% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Houston George Bush Intcntl to Lambert-St Louis?
Spirit Airlines, United Airlines, and Delta are the most popular carriers operating from Houston George Bush Intcntl to Lambert-St Louis
What airlines fly to 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 77% 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.
How many flights depart from Houston George Bush Intcntl Airport to St. Louis on average per day?
The number of flights available between Houston George Bush Intcntl Airport and St. Louis is 8 per day as of June 2025. The most frequent departure time is 8:00PM, with 56% of daily flights leaving in the evening.
How many flights depart from Houston George Bush Intcntl Airport to St. Louis on average per week?
62 flights are operational weekly from Houston George Bush Intcntl Airport to St. Louis as of June 2025. The most popular departure day for this route is Thu, with 27% of flights per week taking off on this day.
When to book flights from Houston George Bush Intcntl Airport to St. Louis
Cheap Houston George Bush Intcntl Airport to St. Louis (IAH to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to St. Louis
How far is Houston George Bush Intcntl to Lambert-St Louis by plane?
The straight-line distance from Houston George Bush Intcntl to Lambert-St Louis is 664.5 mi. 2h 00m is a normal flight duration for this route.
When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Lambert-St Louis Airport?
Prices for flights from Houston George Bush Intcntl Airport to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Lambert-St Louis Airport?
There are 3 operators available for flights from Houston George Bush Intcntl Airport to Lambert-St Louis Airport as of June 2025.
How old do you have to be to fly from Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Houston George Bush Intcntl Airport to St. Louis?
momondo data reveals that the most frequently booked plane model on the route from Houston George Bush Intcntl Airport to St. Louis is Embraer 175 (Enhanced Winglets), representing 34.31% of all bookings. The subsequent popular models are Boeing 737-900 at 14.23%, Airbus A319 at 13.81%, and Boeing 737-800 at 11.72%.
What is the most popular airline from Houston George Bush Intcntl Airport to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Houston George Bush Intcntl Airport to St. Louis is United Airlines (77% of total bookings). The next most popular airlines are Frontier (16%) and American Airlines (7%).
Best airlines flying from Houston George Bush Intcntl Airport to St. Louis
Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $109 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $180 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $243 | Free Cancellation | Rating 7.4 8,838 reviews |
United Airlines Flights From Houston George Bush Intcntl Airport to St. Louis
United Airlines operates around 15 flights from Houston George Bush Intcntl Airport to St. Louis every week. The average price of these flights found in the last 72 hours has been $391, but momondo users have found United Airlines deals from Houston George Bush Intcntl Airport to St. Louis from as low as $243 round-trip. United Airlines has been scored 7.4/10 in 8,838 reviews.
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Why should I use momondo to find a flight deal from Houston to St. Louis?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to St. Louis. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Houston to St. Louis with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Houston to St. Louis flights to just show those with 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 simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Houston and alert you when they change.