Menu

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

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Houston to St Louis are usually found in September or May, booked 29 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

$440
$390
$330
$276
Price
$276 - $396
Temperature
45 - 90 °F
Rainfall
2 - 5 inches
Most popular in March High demand for flights, 7% potential price rise
Cheapest in September Best time to find cheap flights, 2% potential price drop
Average price $356 Price for this month
Cheapest price $276 From Houston to St Louis

Cheap flights from Houston to St Louis in February 2020

The best prices found for IAH to STL flights for February
28 Feb - 2 Mar
$259pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
27 Feb - 1 Mar
$260pp
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
26 Feb - 29 Feb
$266pp
IAH
Houston George Bush Intcntl
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl

Houston to St Louis 2020 flight deals

Cheap flights to St Louis from Houston found for this year
24 Mar - 25 Mar
$228pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
8 May - 12 May
$242pp
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
9 Apr - 13 Apr
$247pp
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 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
28 Feb - 2 Mar
$259pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
27 Feb - 1 Mar
$260pp
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
26 Feb - 29 Feb
$266pp
IAH
Houston George Bush Intcntl
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl

One-way flights to St Louis from Houston

The cheapest one-way flights from Houston to St Louis
10:29 am - 12:39 pm
United Airlines
Nonstop
2h 10m
IAH - STL
United Airlines
$163
United
5:35 am - 7:48 am
United Airlines
Nonstop
2h 13m
IAH - STL
United Airlines
$185
United
3:40 pm - 5:50 pm
United Airlines
Nonstop
2h 10m
IAH - STL
United Airlines
$188
United

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
Average temperature for February in St Louis
48.2 °F
Avg rainfall for February in St Louis
2.2 ″

Airports servicing Houston

Airports servicing St. Louis

Weekly flight availability
from Houston to St Louis
Sunday
9 daily flights
Monday
9 daily flights
Tuesday
13 daily flights
Wednesday
13 daily flights
Thursday
13 daily flights
Friday
13 daily flights
Saturday
3 daily flights

Related info for your journey

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

Flight FAQs

From Houston to St Louis

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

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

The Houston George Bush Intcntl to Lambert-St Louis flight path was viewed by 52 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What percent of flights are delayed?

Flights from Houston to St Louis are usually delayed by 50min. so prepare accordingly.

How many passenger seats are available on a flight on this route?

Commercial airlines for the flight route can seat a total of 267 passengers per day from Houston George Bush Intcntl to Lambert-St Louis.

What is the cheapest airline for this route?

The cheapest airline for this route is Trans States Airlines, Inc.. When flying this airline from Houston to St Louis on average you can expect to find 115 flights available for this route daily.

How long does the flight from Houston to St Louis take?

A typical nonstop flight can take about 3 hours, covering about 417 miles.

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

Travelers can expect 28 flights from Houston George Bush Intcntl to Lambert-St Louis on average per day.
Morning (6am - Noon) - 68% of flight departures
Afternoon (Noon - 6pm) - 11% of flight departures
Evening (6pm - Midnight) - 21% of flight departures

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 15 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.

What airports serve Houston to St. Louis flights?

You can fly from either of Houston’s major airports to St. Louis. The majority of the flights on this route have one stop in between. There are more flights going from George Bush Intercontinental Airport to Lambert-St. Louis International Airport than from William P. Hobby Airport in Houston. St. Louis Lambert International Airport is located 14 miles from the downtown district in St. Louis. You’ll sometimes see it listed as Lambert Field. This airport is the busiest and the biggest one in the state of Missouri. There is a second airport in the city or located close to the city but the majority of flights arrive at Lambert. There is a connected railway though if it’s needed for a traveler to make it to the other airport.

Which airlines fly directly from Houston to St. Louis?

There are not a lot of direct flights between these two cities but there are a few. They are operated by United. The flight is 2h 5m to 2h 12m, depending on the time of day you go. For more choices of departure times, you can look for a stopover flight.

What are the stopover options between Houston to St. Louis?

American Airlines has a stop in Dallas for this route. Most of these are an hour or less. Delta stops in Atlanta and sometimes in Detroit. There are also a couple of options that stop in Minneapolis. United offers flights that land in Chicago at O’Hare before moving on to St. Louis. Most of the flights are around five hours or so. The longest ones are about eight hours.

Do I need a passport or visa to fly from Houston to St. Louis?

You will not need your passport or a visa for this flight. The connections are all within the United States so the flights are purely domestic. There is only a requirement that you bring a valid form of identification to the airport so you are allowed to board the plane.