Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

STL - IAH

$59 Find cheap flights from St. Louis to Houston George Bush Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to George Bush Intcntl departing on 6/26. 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
0 bags
Wed 7/10
Wed 7/17

Search hundreds of travel sites at once for deals on flights to Houston George Bush Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Houston, 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 St. Louis to Houston, as well as popular online travel agencies
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from St. Louis to George Bush Intcntl (STL-IAH)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to George Bush Intcntl 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 and deals for you by selecting your travel dates.
Choose your dates
2:12 pm - 8:29 pmSTL-IAH
6h 17m1 stop
3:13 pm - 7:02 amIAH-STL
15h 49m1 stop
$96Frontier
Find Deal
Wed, Sep 4 - Wed, Sep 11
1:48 pm - 8:28 pmSTL-IAH
6h 40m1 stop
10:41 pm - 9:29 amIAH-STL
10h 48m1 stop
$118Frontier
Find Deal
Wed, Jun 19 - Fri, Jun 21
7:29 pm - 6:11 pmSTL-IAH
22h 42m1 stop
9:35 am - 9:29 amIAH-STL
23h 54m1 stop
$121Frontier
Find Deal
Thu, Jun 20 - Sun, Jun 23
2:03 pm - 8:28 pmSTL-IAH
6h 25m1 stop
11:09 pm - 9:29 amIAH-STL
10h 20m1 stop
$126Frontier
Find Deal
Fri, Jun 21 - Sun, Jun 23
11:57 am - 8:16 pmSTL-IAH
8h 19m1 stop
8:20 pm - 8:43 amIAH-STL
12h 23m1 stop
Tue, Jul 9 - Tue, Jul 16
12:15 pm - 5:45 pmSTL-IAH
29h 30m2 stops
5:15 am - 2:23 pmIAH-STL
9h 08m1 stop
Tue, Jul 2 - Tue, Jul 9
5:30 pm - 11:59 pmSTL-IAH
6h 29m1 stop
2:24 pm - 4:28 pmIAH-STL
2h 04mnonstop
$281United Airlines
Find Deal
Tue, Jul 23 - Mon, Aug 5
7:00 am - 11:21 amSTL-IAH
4h 21m1 stop
6:28 pm - 10:52 pmIAH-STL
4h 24m1 stop
$294American Airlines
Find Deal
Sat, Jul 13 - Sat, Jul 13
5:03 pm - 7:10 pmSTL-IAH
2h 07mnonstop
8:13 pm - 10:17 pmIAH-STL
2h 04mnonstop
$297United Airlines
Find Deal
Fri, Aug 2 - Mon, Aug 5
3:18 pm - 11:21 pmSTL-IAH
8h 03m1 stop
6:20 am - 2:30 pmIAH-STL
8h 10m1 stop
$305Delta
Find Deal
Fri, Oct 4 - Sat, Oct 12

Flights from St. Louis to George Bush Intcntl - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to George Bush Intcntl 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 St. Louis to Houston George Bush Airport?

The average price of all flights from St. Louis to Houston George Bush Intcntl Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from St. Louis to Houston George Bush Airport, look for departures on Tuesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Houston George Bush Airport, Tuesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from St. Louis to Houston George Bush Intcntl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Houston George Bush Intcntl Airport, 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 St. Louis to Houston George Bush Intcntl Airport is August, where tickets cost $308 on average. On the other hand, the most expensive months are December and March, where the average cost of tickets is $457 and $391 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Houston George Bush Intcntl Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 66 days before departure.

Which airlines provide the cheapest flights from St. Louis to Houston George Bush Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting St. Louis to Houston George Bush Airport were found on Frontier ($96) and Spirit Airlines ($194). Frontier proposed the cheapest one-way flight at $59.

Which airlines fly non-stop between St. Louis and Houston George Bush Intcntl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from St. Louis to Houston George Bush Intcntl Airport.
There is just one airline that flies from St. Louis to Houston George Bush Intcntl Airport direct and that is United Airlines. The best one-way deal found from United Airlines for the route is $188.

How many flights are there between St. Louis and Houston George Bush Intcntl Airport per day?

Each day, there are between 6 and 9 nonstop flights that take off from St. Louis and land in Houston George Bush Intcntl Airport, with an average flight time of 2h 12m. The most common departure time is 8:00 am and most flights take off in the morning. Each week, there are 52 flights. The most frequent day of departure is Monday, when 17% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between St. Louis and Houston George Bush Intcntl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from St. Louis to Houston George Bush Airport take?

Nonstop flights from St. Louis generally make it to Houston George Bush Airport in 2h 05m. The flying distance between the two cities is 668 miles.

What’s the earliest departure time from St. Louis to Houston George Bush Airport?

Early birds can take the earliest flight from St. Louis at 6:15 am and will be landing in Houston George Bush Intcntl Airport at 8:22 am.

What’s the latest departure time from St. Louis to Houston George Bush Airport?

If you prefer to fly at night, the latest flight from St. Louis to Houston George Bush Intcntl Airport jets off at 5:03 pm and lands at 7:10 pm.

Good to know

Low season

January

High season

May

Cheapest flight

$59
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from St. Louis to Houston George Bush Airport

When to book flights from St. Louis to George Bush Intcntl

Are your dates flexible? Find out the best times to travel from St. Louis to George Bush Intcntl 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 St. Louis to Houston George Bush Airport flights

  • What is the cheapest flight from St. Louis to Houston George Bush Intcntl Airport?

    In the last 3 days, the lowest price for a flight from St. Louis to Houston George Bush Intcntl Airport was $59 for a one-way ticket and $96 for a round-trip.

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

    No

  • Which airports will I be using when flying from St. Louis to Houston George Bush Airport?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Houston George Bush Airport, also known as Houston George Bush Intcntl.

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

    American Airlines, Alaska Airlines, United Airlines, and Lufthansa offer inflight Wi-Fi service on the St. Louis to Houston George Bush Airport flight route.

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

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the St. Louis to Houston George Bush Airport flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Houston are Delta and United Airlines. With an average price for the route of $305 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $356 and an overall rating of 7.4.

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

    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 St. Louis to Houston George Bush Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston George Bush Airport from St. Louis 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 St. Louis to Houston George Bush Airport?

    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 Houston George Bush Airport with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and IAH 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 St. Louis to Houston George Bush Airport?

    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 Houston George Bush Airport from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $202 or less one-way and $406 or less round-trip.

Prefer to fly non-stop from St. Louis to Houston George Bush Airport?

Find which airlines fly direct from Lambert-St Louis to George Bush Intcntl, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Houston George Bush Intcntl

Monday

ANA, Air New Zealand, Copa Airlines, +2 more

ANA, Air New Zealand, +3 more

Tuesday

ANA, Air New Zealand, Copa Airlines, +2 more

ANA, Air New Zealand, +3 more

Wednesday

ANA, Air New Zealand, Copa Airlines, +2 more

ANA, Air New Zealand, +3 more

Thursday

ANA, Air New Zealand, Copa Airlines, +2 more

ANA, Air New Zealand, +3 more

Friday

ANA, Air New Zealand, Copa Airlines, +2 more

ANA, Air New Zealand, +3 more

Saturday

ANA, Air New Zealand, Copa Airlines, +2 more

ANA, Air New Zealand, +3 more

Sunday

ANA, Air New Zealand, Copa Airlines, +2 more

ANA, Air New Zealand, +3 more

See more direct flights

Nonstop returns

Houston George Bush Intcntl to Lambert-St Louis

Monday

ANA, Air New Zealand, Copa Airlines, +3 more

ANA, Air New Zealand, +4 more

Tuesday

ANA, Air New Zealand, Copa Airlines, +3 more

ANA, Air New Zealand, +4 more

Wednesday

ANA, Air New Zealand, Copa Airlines, +3 more

ANA, Air New Zealand, +4 more

Thursday

ANA, Air New Zealand, Copa Airlines, +3 more

ANA, Air New Zealand, +4 more

Friday

ANA, Air New Zealand, Copa Airlines, +3 more

ANA, Air New Zealand, +4 more

Saturday

ANA, Air New Zealand, Copa Airlines, +3 more

ANA, Air New Zealand, +4 more

Sunday

ANA, Air New Zealand, Copa Airlines, +3 more

ANA, Air New Zealand, +4 more

See more direct flights
See more direct flights

Top 4 airlines serving from St. Louis to George Bush Intcntl

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Houston. 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 St. Louis to George Bush Intcntl? 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
DeltaOverall score based on 10295 reviews
8.2Boarding
7.4Food
8.6Crew
7.9Comfort
8.0Entertainment
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

Boarding was unorganized. They expected passengers to ask people to move their assigned seat they paid for in order to sit together. The seats even in comfort are smaller than other airlines and the flight attendants appeared not to be well prepared

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

It was delayed several hours which delayed our connection in Denver. Not happy.

Ok, but comfort was lacking as the seats were way to small

All good except paid for wifi that did not work

Some of these FA’s need attitude check. Snarky bitches

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

They cancelled two flight and got us onto another airline, which was also delayed.

Nothing, terrible travel experience due to weather and maintenance delays and was left stranded in Austin.

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Delayed so that missed connecting flight. Connecting flight was also delayed on the tarmac but they closed the gate before the rescheduled time.

Took off over an hour late with multiple mechanical issues. Gate agent in Dallas was lazy and was slow as molasses. Had a line 10 people long. Spirit bad..

LIT to DFW - 3 hours late; the entire plane had been boarded before they told us there was a delay due to a weather-related ground stop in Dallas. DFW to MAY - 2+ hours late due to A/C needing to be repaired after everyone had boarded, then when we finally reach the runway, the First Officer timed out and we had to taxi all the way back to the gate and wait for a new one. I arrived in New Orleans 5+ hours later than I should have. Return flights were completely cancelled; rebooked through the app to fly through CLT instead of DFW. MSY to CLT had no issues, but CLT to LIT was delayed 1.25 hrs because flight attendants had not arrived to the airport yet. At least they didn’t make us all sit on the plane to wait for them. I should have driven.

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

Even though we left CMI late, we mostly made up the time.

The CX617 from HK to BKK was delayed more than 1.5 hours.

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

Book cheap flights from St. Louis to Houston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Houston found on KAYAK in the last 72 hours.
6/26Wed
1 stopFrontier
6h 40mSTL-IAH
$59
6/22Sat
1 stopFrontier
12h 31mSTL-IAH
$67
7/10Wed
2 stops
27h 48mSTL-IAH
$106
10/4Fri
2 stopsSpirit Airlines
25h 05mSTL-IAH
$117
7/14Sun
1 stopSpirit Airlines
15h 33mSTL-IAH
$120
7/10Wed
3 stops
20h 45mSTL-IAH
$122
10/12Sat
nonstopUnited Airlines
2h 07mSTL-IAH
$149
7/10Wed
nonstopUnited Airlines
2h 07mSTL-IAH
$158
10/12Sat
2 stopsAmerican Airlines
10h 14mSTL-IAH
$283
6/29Sat
2 stopsAmerican Airlines
9h 56mSTL-IAH
$295

Search by stops

Search by airline

Search by price

Last minute flights from St. Louis to George Bush Intcntl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Houston that are departing in the next 10 days.
6/14Fri
multi-stopFrontier
15h 02mSTL-IAH
6/18Tue
multi-stopFrontier
12h 06mIAH-STL
$168
6/14Fri
multi-stopFrontier
21h 26mSTL-IAH
6/17Mon
multi-stopFrontier
14h 58mIAH-STL
$182
6/14Fri
multi-stopFrontier
28h 17mSTL-IAH
6/17Mon
multi-stopFrontier
14h 58mIAH-STL
$183
6/14Fri
multi-stopFrontier
15h 02mSTL-IAH
6/16Sun
multi-stopFrontier
10h 20mIAH-STL
$203
6/14Fri
multi-stop
25h 39mSTL-IAH
6/17Mon
multi-stop
13h 19mIAH-STL
$248
6/14Fri
multi-stop
29h 30mSTL-IAH
6/17Mon
multi-stop
25h 38mIAH-STL
$311
6/15Sat
multi-stopSpirit Airlines
24h 18mSTL-IAH
6/17Mon
multi-stopSpirit Airlines
13h 19mIAH-STL
$497
6/15Sat
multi-stopSpirit Airlines
13h 16mSTL-IAH
6/16Sun
multi-stopSpirit Airlines
7h 39mIAH-STL
$589
6/12Wed
nonstopUnited Airlines
2h 17mSTL-IAH
6/18Tue
nonstopUnited Airlines
2h 10mIAH-STL
$677
6/14Fri
nonstopUnited Airlines
2h 17mSTL-IAH
6/16Sun
nonstopUnited Airlines
2h 08mIAH-STL
$684

Search by stops

Search by airline

Search by price

St. Louis - Houston George Bush Airport Flights

Departure:

St. Louis (STL)United States

Destination:

Houston George Bush Airport (IAH)United States

Return flight deals:

Houston George Bush Airport - St. Louis

Cabin classes:

$646
$672
$540
$286