HOU - STL

$123 Find Cheap Flights from Houston Hobby Airport to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Hobby to St. Louis departing on 12/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$306
Overall average: $413
American Airlines
Thu 1/15Sun 1/18
HOU - STL • 1 stop
Cheapest non-stop
$313
Typical prices: $376-$433
Southwest
Thu 12/4Mon 12/8
HOU - STL • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
Use the Hobby Airport app for parking and navigation.
Take the MetroLink Red Line from STL to downtown.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
American Airlines
Cheapest • from $306 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 43% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 28% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Hobby to St. Louis (HOU-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Hobby to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Hobby to St. Louis

Thu, Jan 15 - Sun, Jan 18
American Airlines Logo
6:00 am - 11:05 amHOU-STL
5h 05m1 stop
American Airlines Logo
9:25 am - 6:06 pmSTL-HOU
8h 41m1 stop
$306American Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Southwest Logo
12:15 pm - 2:15 pmHOU-STL
2h 00mnonstop
Southwest Logo
8:15 pm - 10:25 pmSTL-HOU
2h 10mnonstop
$313Southwest
Find Deal
Thu, Dec 4 - Mon, Dec 8
Southwest Logo
7:30 am - 1:05 pmHOU-STL
5h 35m1 stop
Southwest Logo
5:45 am - 8:00 amSTL-HOU
2h 15mnonstop
$323Southwest
Find Deal
Thu, Dec 4 - Mon, Dec 8
Southwest Logo
12:30 pm - 5:20 pmHOU-STL
4h 50m2 stops
Southwest Logo
9:20 am - 11:30 amSTL-HOU
2h 10mnonstop
$328Southwest
Find Deal
Sat, Dec 6 - Thu, Dec 11
Southwest Logo
7:00 pm - 9:00 pmHOU-STL
2h 00mnonstop
Southwest Logo
5:45 am - 8:00 amSTL-HOU
2h 15mnonstop
$329Southwest
Find Deal
Wed, Nov 26 - Wed, Dec 3
Southwest Logo
6:55 pm - 8:55 pmHOU-STL
2h 00mnonstop
Southwest Logo
10:15 am - 1:55 pmSTL-HOU
3h 40m1 stop
$335Southwest
Find Deal
Thu, Jan 1 - Sun, Jan 4
American Airlines Logo
5:40 am - 3:00 pmHOU-STL
9h 20m1 stop
American Airlines Logo
6:44 pm - 11:46 pmSTL-HOU
5h 02m1 stop
$336American Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Southwest Logo
11:30 am - 5:15 pmHOU-STL
5h 45m2 stops
Southwest Logo
8:15 am - 12:15 pmSTL-HOU
4h 00m1 stop
$338Southwest
Find Deal
Thu, Dec 11 - Sun, Dec 14
Delta Logo
6:00 am - 10:45 amHOU-STL
4h 45m1 stop
Delta Logo
5:12 pm - 10:48 pmSTL-HOU
5h 36m1 stop
$374Delta
Find Deal
Wed, Nov 26 - Tue, Dec 2
Delta Logo
2:32 pm - 9:58 pmHOU-STL
7h 26m1 stop
Delta Logo
6:00 am - 1:28 pmSTL-HOU
7h 28m1 stop
$401Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Hobby to St. Louis flights

Get data-powered insights and trends into flights from Hobby to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Houston Hobby Airport to St. Louis?

The average price of all round-trip flights from Houston Hobby Airport to St. Louis clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Houston Hobby Airport to St. Louis, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from St. Louis, Friday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston Hobby Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Houston Hobby Airport to St. Louis is September, where tickets cost $249 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $413 and $398 respectively.

Can I save money by flying with a layover from Houston Hobby Airport to St. Louis?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $395 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston Hobby Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Houston Hobby Airport to St. Louis, you should book around 4 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Expert advice

Expert advice for your flight from Hobby to St. Louis

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
HOU

Use the Hobby Airport app to reserve parking, check security wait times, and navigate the terminal efficiently.

Read more about HOUby Yulia Denisyuk
STL

Take the MetroLink Red Line from STL for a convenient and cost-effective ride to downtown St. Louis.

Read more about STLby Yulia Denisyuk
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on STL and HOU

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more

Good to know

Low seasonJanuary
Cheapest flight$123
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Houston Hobby Airport to St. Louis

When to book flights from Hobby to St. Louis

Are your dates flexible? Find out the best times to travel from Hobby to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Houston Hobby Airport to St. Louis flights

  • What is the cheapest flight from Houston Hobby Airport to St. Louis?

    In the last 3 days, the lowest price for a flight from Houston Hobby Airport to St. Louis was $123 for a one-way ticket and $306 for a round-trip.

  • Do I need a passport to fly between Houston Hobby Airport and St. Louis?

    No

  • Which airlines offer Wi-Fi service onboard planes from Houston Hobby Airport to St. Louis?

    JetBlue, American Airlines, and Delta offer inflight Wi-Fi service on the Houston Hobby Airport to St. Louis flight route.

  • Which aircraft models fly most regularly from Houston Hobby Airport to St. Louis?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Houston Hobby Airport to St. Louis flight route.

  • Which airline alliances offer flights from Houston Hobby Airport to St. Louis?

    Star Alliance is the only airline alliance operating flights between Houston Hobby Airport and St. Louis.

  • On which days can I fly direct from Houston Hobby Airport to St. Louis?

    There are nonstop flights from Houston Hobby Airport to St. Louis on a daily basis.

  • Which is the best airline for flights from Houston to St. Louis, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from Houston to St. Louis are Southwest and United Airlines. With an average price for the route of $369 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $381 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Houston Hobby Airport to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston Hobby Airport to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston Hobby Airport to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Houston Hobby Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston Hobby Airport to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Houston Hobby Airport with another airline. Booking your flights between Houston Hobby Airport and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston Hobby Airport to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Houston Hobby Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Houston Hobby Airport to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $154 or less one-way and $313 or less round-trip.

Prefer to fly direct from Houston Hobby Airport to St. Louis?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Houston Hobby to Lambert-St Louis.
Find which airlines fly direct from Houston Hobby Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Houston Hobby to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Lambert-St Louis to Houston Hobby

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 3 airlines serving from Hobby to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Houston to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Hobby to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4242 reviews
8.6Crew
8.1Boarding
8.0Comfort
7.5Entertainment
7.0Food
Airline reviews

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

2.0 MediocreThomas, Oct 2025SAT - STL
Read more Southwest reviews

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Southwest's seats are the least comfortable I have ever sat in.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

It was one and half hour late... Not sure if any other experience matters.

For my birthday trip this was my second time ever flying, this trip was the best.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

Overall it was good. I missed my connection but I was put on another flight.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

Everything you need to know for your flight from Hobby to St. Louis

Information on your arrival and departure airports

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