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

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The best prices from Houston to St Louis are usually found in September or May, booked 30 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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

IAH - STL
Price
$276 - $396
STL
Temperature
44.6 - 89.6 °F
STL
Rainfall
2.2 - 5.1 inches

Popular in

March

High demand for flights, 12% potential price rise

Cheapest in

September

Best time to find cheap flights, 21% potential price drop

Round-trip from

$276

From Houston to St Louis

One-way from

$59

One-way flight from Houston to St Louis

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 Houston to St Louis?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 11% when planning your travel around this day of the week.

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

Travelers have found it’s best to book a flight 61 days in advance to save up to 27% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Houston to St Louis 1-2 weeks in advance for as low as $164, or $181 for flights within the next 24 hours.

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

It’s optimal to fly from Houston to St Louis at noon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the evening.

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

The best prices found for IAH to STL flights for October, November
10 Nov - 14 Nov
$97pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
4 Nov - 9 Nov
$107pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
13 Nov - 15 Nov
$117pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl

Houston to St Louis 2020 flight deals

Cheap flights to St Louis from Houston found for this year
10 Nov - 14 Nov
$97pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
4 Nov - 9 Nov
$107pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
13 Nov - 15 Nov
$117pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl

Non-stop flights to St Louis from Houston

Save time with Houston to St Louis direct flight deals
10 Nov - 14 Nov
$97pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
4 Nov - 9 Nov
$107pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
13 Nov - 15 Nov
$117pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl

Last minute flights from Houston to St Louis

Late deals on round-trip flights to St Louis from Houston, departing today and this week
29 Oct - 30 Oct
$167pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
29 Oct - 30 Oct
$170pp
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
28 Oct - 30 Oct
$178pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl

One-way flights to St Louis from Houston

The cheapest one-way flights from Houston to St Louis
12:00 pm - 5:48 pm
Delta
1 Stop
5h 48m
IAH - STL
Delta
$59
Delta
3:50 am - 9:34 am
American Airlines
1 Stop
5h 44m
IAH - STL
American Airlines
9:20 am - 11:29 am
United Airlines
Nonstop
2h 09m
IAH - STL
United Airlines
$377
United

Related info for your journey

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

Flight FAQs

From Houston to St Louis

Are flight prices decreasing from Houston to St Louis 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 Houston and St Louis 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 Houston George Bush Intcntl to Lambert-St Louis 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 Houston George Bush Intcntl to Lambert-St Louis 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 Houston George Bush Intcntl to Lambert-St Louis have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines, Frontier, and American Airlines flying from Houston George Bush Intcntl to Lambert-St Louis have implemented new flexible cancellation policies.

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

Yes, there are multiple flights from Houston to St Louis for under $100. The cheapest flight booked recently is on United Airlines for just $97, but on average you can expect to pay $138.

Are there nonstop flights from Houston to St Louis for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Houston to St Louis under $100. A good price for a nonstop flight from Houston to St Louis is less than $220.

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

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

How popular is this flight route?

The Houston George Bush Intcntl to Lambert-St Louis flight path was viewed by 63 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Does it rain more in Houston or St Louis?

Expected rainfall in Houston is less than in St Louis. You can expect this to be the case over the next 11 days.

Is Houston weather warmer or cooler than St Louis?

Our data indicates that the weather will be 90 °F on average in the month of July. The temperature in St Louis is typically hotter than in Houston. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Houston to St Louis?

Departing from Houston to St Louis will take you 2h 04m. 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 Houston to St Louis round-trip?

According to our current data, United Airlines ($97), Delta ($118), and American Airlines ($145) offers the cheapest pricing from Houston to St Louis. United Airlines is priced at 72% lower than the current average price of a flight leaving 3 months from now.

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

One-way options have recently been found by users for as low as $49 on United Airlines. Other airlines that offer cheap prices include Delta from $59 and American Airlines from $103 one-way.

Alternative routes for Houston to St Louis

Destination information for St Louis

Things to know before you go. Useful info for your trip from Houston to St Louis
Flight duration
2h 15m
Average temperature for October in St Louis
71.6 °F
Avg rainfall for October in St Louis
2.8 ″

Airports servicing Houston

Airports servicing St. Louis

Hourly flight availability from Houston to St Louis

Afternoon Noon to 6 PM 40% of IAH to STL departures
Morning 6 AM to noon 38% of IAH to STL departures
Evening 6 PM to midnight 21% of IAH to STL departures
Early morning Midnight to 6 AM 1% of IAH to STL departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Houston to St Louis
Sunday
7 daily flights
Monday
7 daily flights
Tuesday
4 daily flights
Wednesday
4 daily flights
Thursday
8 daily flights
Friday
8 daily flights
Saturday
7 daily flights
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