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Cheap flights from St Louis to Houston (STL - IAH)

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The best prices from St Louis to Houston are usually found in July or August, booked 23 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

How to find the cheapest flight from
St Louis (STL) to Houston (IAH)

STL - IAH
Price
$184 - $359
IAH
Temperature
59 - 86 °F

Popular in

December

High demand for flights, 14% potential price rise

Cheapest in

July

Best time to find cheap flights, 41% potential price drop

Round-trip from

$184

From St Louis to Houston

One-way from

$74

One-way flight from St Louis to Houston

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from St Louis to Houston?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 30% when planning your travel around this day of the week.

How far in advance should I book a flight from St Louis to Houston?

Users have found that booking a flight from St Louis to Houston at least 30 days early can save you up to 39% on average compared to booking a flight this week. If booking 30 days before your flight isn’t an option for you, users have found flights from St Louis to Houston for as little as $260 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $337 for flights departing within the next 3 days.

What is the cheapest month to fly from St Louis to Houston?

The best pricing can be found in the month of August. Prices to Houston from St Louis average $233. You can even find prices in August for less than $233, as users have found deals to Houston from as low as $37. The month of December appears to be one of the more expensive times to travel to Houston from St Louis. Flying in the targeted month can save you up to 47%.

When is the cheapest time to fly from St Louis to Houston (STL - IAH)?

It’s optimal to fly from St Louis to Houston in the evening. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the afternoon.

Cheap flights from St Louis to Houston in November, December 2020

The best prices found for STL to IAH flights for November, December
11 Dec - 13 Dec
$118pp
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
11 Dec - 14 Dec
$123pp
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
18 Dec - 19 Dec
$126pp
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis

St Louis to Houston 2021 flight deals

Cheap flights to Houston from St Louis found for next year
11 Dec - 13 Dec
$118pp
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
11 Dec - 14 Dec
$123pp
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
18 Dec - 19 Dec
$126pp
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis

Non-stop flights to Houston from St Louis

Save time with St Louis to Houston direct flight deals
21 Dec - 28 Dec
$157pp
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
31 Dec - 1 Jan
$177pp
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
31 Dec - 3 Jan
$192pp
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis

Last minute flights from St Louis to Houston

Late deals on round-trip flights to Houston from St Louis, departing today and this week
10 Dec - 13 Dec
$123pp
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
7 Dec - 12 Dec
$134pp
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
6 Dec - 13 Dec
$135pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis

One-way flights to Houston from St Louis

The cheapest one-way flights from St Louis to Houston
6:33 am - 9:38 am
Frontier
1 Stop
27h 05m
STL - IAH
Frontier
$74
Kiwi.com
2:00 am - 10:03 am
American Airlines
1 Stop
8h 03m
STL - IAH
American Airlines
9:46 am - 2:10 pm
Multiple Airlines
3 Stops
28h 24m
STL - IAH
Multiple Airlines
$155
Kiwi.com

Related info for your journey

Useful info, stats and facts about St Louis to Houston flights.

Flight FAQs

From St Louis to Houston

Are flight prices decreasing from St Louis to Houston due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and Houston for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Lambert-St Louis to Houston George Bush Intcntl to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travelers flying from Lambert-St Louis to Houston George Bush Intcntl are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Lambert-St Louis to Houston George Bush Intcntl have flexible cancellations due to COVID-19?

United Airlines, Frontier, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from St Louis to Houston for under $100 on Cheapflights?

Yes, there are multiple flights from St Louis to Houston for under $100. The cheapest flight booked recently is on Frontier for just $68, but on average you can expect to pay $135.

Are there nonstop flights from St Louis to Houston for under $200 on Cheapflights?

Cheapflights has at least 16 direct flights from St Louis to Houston under $200. A good price for a nonstop flight from St Louis to Houston is less than $290.

Are there last-minute flights available from St Louis to Houston for under $200?

There are currently 20+ open flights from St Louis to Houston within the next 7 days for less than $200.

What days are nonstop flights available from St Louis to Houston?

Nonstop flights are available for this route on the following days: Wednesday.

How popular is this flight route?

The Lambert-St Louis to Houston George Bush Intcntl flight path was viewed by 40 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How many flights depart from St Louis to Houston on average per day?

Travelers can expect 2 flights from Lambert-St Louis to Houston George Bush Intcntl on average per day.
Morning (6am - Noon) - 100% of flight departures

Does it rain more in St Louis or Houston?

In St Louis, there will be less rainfall in St Louis compared to Houston over the next 12 days.

Is St Louis weather warmer or cooler than Houston?

We forecast the temperature to be around the 90 °F's in July, on average. The temperature in Houston is generally colder than in St Louis. Book flights in a timely manner in correlation to your departure date.

How long is the flight from St Louis to Houston?

Departing from St Louis to Houston will take you 2h 24m. There are 671 mi between St Louis and Houston. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from St Louis to Houston round-trip?

Cheapflights users have booked flights from St Louis to Houston round-trip from $68. Other airlines that can offer you cheap pricing are United Airlines, from $157, and American Airlines, from $164. Users have found that Frontier is 78% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from St Louis to Houston one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $23. United Airlines flights start at $79 while deals on American Airlines start at $102 one-way.

Alternative routes for St Louis to Houston

Destination information for Houston

Things to know before you go. Useful info for your trip from St Louis to Houston
Flight duration
2h 15m
Average temperature for November in Houston
69.8 °F

Airports servicing St. Louis

Airports servicing Houston

Top 4 airlines from St Louis to Houston

The chart below displays the airlines Cheapflights users traveling from St Louis to Houston choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$101 $226 No cancel fee 62%
American Airlines
$171 $343 No cancel fee 71%
Delta
$236 $390 No cancel fee N/A
United Airlines
$174 $392 No cancel fee 69%

Hourly flight availability from St Louis to Houston

Early morning Midnight to 6 AM 51% of STL to IAH departures
Morning 6 AM to noon 31% of STL to IAH departures
Afternoon Noon to 6 PM 18% of STL to IAH departures
Evening 6 PM to midnight 0% of STL to IAH departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from St Louis to Houston
Sunday
7 daily flights
Monday
6 daily flights
Tuesday
3 daily flights
Wednesday
5 daily flights
Thursday
4 daily flights
Friday
5 daily flights
Saturday
7 daily flights
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