Cheap Flights from Houston Hobby to St Louis

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Flight deals from Houston Hobby to St Louis

Looking for a cheap last-minute deal or the best return flight from Houston Hobby to St Louis? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Houston Hobby to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston Hobby to St Louis flights are currently cheapest in July.

Direct flights from Houston Hobby to St Louis

Houston Hobby to St Louis: Alternative routes

Compare routes from Houston Hobby to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Houston to St Louis: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 7,575
Cheapest month to flyJuly
Average flight time2 hrs
Most popular airlineSouthwest Airlines
Average flights per week36

Finding cheap flights from Houston Hobby to St Louis: Frequently asked questions

The best price we found for a return flight from Houston Hobby to St Louis is ج.م.‏ 11,785. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours is the average flight time from Houston Hobby to St Louis.
Southwest Airlines flies direct from Houston Hobby to St Louis.
As of June 2025, there are 36 flights per week flying from Houston Hobby to St Louis.
The cheapest month to fly from Houston Hobby to St Louis is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston Hobby Airport to St Louis Airport on Thursday, 28 August 2025.
Yes – the average flight time is 2 hours.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Southwest Airlines offers the cheapest flight tickets to St Louis.

Travelling from William P. Hobby Airport (HOU) to Lambert-St. Louis International Airport (STL): what you need to know

  • The average duration of a direct flight from William P. Hobby Airport to Lambert-St. Louis International Airport is 2 hours.

  • Houston and St Louis follow the same timezone, UTC-5.

  • You can choose from 22 weekly William P. Hobby Airport to Lambert-St. Louis International Airport flights. The 05:00 departure with Southwest Airlines is the earliest available. Southwest Airlines operates the latest service of the day at 22:25.

  • Arrive at the airport on time so you don't miss your HOU to STL flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • You can expect longer lines during popular months such as July. Arriving up to four hours ahead of international flights and two hours for a domestic departure will give you ample time for security and boarding.

  • Southwest Airlines is your gateway to discovering St Louis (and maybe even some other great corners of United States!). Browse the direct flights from William P. Hobby Airport to Lambert-St. Louis International Airport offered by this airline.

  • Southwest Airlines is the airline with the highest passenger demand for this route.

  • With a dependable 82.0% of services arriving as planned, Southwest Airlines has the best on-time record for HOU to STL flights.

  • Think about adding a stopover when booking your ticket from William P. Hobby Airport to Lambert-St. Louis International Airport. Simply deselect 'Direct flights only' to break up your trip, or visit a new city along the way. Check out these options between HOU and STL:

    • Dallas Love Field Airport

    • Kansas City International Airport

    • Nashville International Airport

How to find the cheapest flights from William P. Hobby Airport (HOU) to Lambert-St. Louis International Airport (STL)

  • ج.م.‏ 7,575 is currently the best price for a one-way William P. Hobby Airport to Lambert-St. Louis International Airport flight. A return flight starts from ج.م.‏ 11,785. These fares may change depending on availability and demand.

  • To score cheap tickets from HOU to STL, book your journey six months before your departure.

  • Plan your trip for May. That's the cheapest month for flights from William P. Hobby Airport to Lambert-St. Louis International Airport. If you're flexible with your travel dates, use the 'Whole month' tool to find the cheapest airfare across each month.

  • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll send you an update as soon as a special offer becomes available on cheap flights from HOU to STL.

  • Select your preferred departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from William P. Hobby Airport to Lambert-St. Louis International Airport.

Handy information about William P. Hobby Airport (HOU)

  • HOU's address is 7800 Airport Boulevard.

  • 81.06% of flights leaving William P. Hobby Airport land at their destination on time. Given its solid on-time performance, disruptions are unlikely when jetting out of HOU.

  • William P. Hobby Airport is around 19 kilometres from central Houston. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 20 minutes or so to get there, depending on the traffic.

  • You can expect a trip time of roughly 1 hour 40 minutes on public transport.

  • Looking for a handy hotel close to HOU? If you've booked an early flight from William P. Hobby Airport to Lambert-St. Louis International Airport, these stays will have you moments from check-in:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • STL is located at 10701 Lambert International Blvd..

  • Lambert-St. Louis International Airport to the centre of St Louis has a drive time of about 20 minutes. It's approximately 26 kilometres away.

  • Getting there on public transport typically takes 35 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • July is the most popular month for flights from William P. Hobby Airport to Lambert-St. Louis International Airport. To steer clear of the crowds, travel to St Louis in April.

  • Lock in your flight from William P. Hobby Airport to Lambert-St. Louis International Airport for July if you'd like to go to St Louis during its warmest month. Expect temperatures of between 17ºC and 33ºC.

  • Search for cheap tickets from HOU to STL in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -8ºC and 7ºC on average.

Explore more of United States

  • You've visited St Louis, now it's time to explore more of United States. Travel around 418 kilometres north-east to Chicago to tick off its popular sights. From Millennium Park to Art Institute of Chicago and LandShark Beer Garden at Navy Pier, you'll have a packed itinerary ahead.

  • Indianapolis is another well-known destination in United States and is around 370 kilometres east of St Louis. No journey is complete without visiting The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.