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Find cheap flights from St. Louis to Houston George Bush Airport from $42

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 5/14. 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
dim. 5/26
dim. 6/2

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 44,335,567 times on KAYAK, and here is why:

Save 22% 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
2:35 pm - 1:00 pmSTL-IAH
22h 25m1 stop
6:27 am - 10:46 amIAH-STL
28h 19m2 stops
$104Spirit Airlines
Find Deal
mar., mai 7 - mar., mai 14
7:51 pm - 5:34 pmSTL-IAH
21h 43m1 stop
4:31 pm - 7:08 amIAH-STL
14h 37m1 stop
$107Frontier
Find Deal
ven., mai 10 - mer., mai 15
8:04 pm - 8:45 amSTL-IAH
12h 41m1 stop
11:26 pm - 10:13 amIAH-STL
10h 47m1 stop
$108Frontier
Find Deal
sam., mai 18 - dim., mai 19
7:23 pm - 4:07 pmSTL-IAH
20h 44m1 stop
11:26 pm - 10:13 amIAH-STL
10h 47m1 stop
$109Frontier
Find Deal
jeu., mai 16 - dim., mai 19
11:36 am - 4:44 amSTL-IAH
17h 08m1 stop
11:30 am - 7:55 pmIAH-STL
32h 25m2 stops
mer., mai 8 - mer., mai 15
10:34 am - 9:54 amSTL-IAH
23h 20m2 stops
8:51 pm - 4:45 pmIAH-STL
19h 54m2 stops
mar., mai 7 - mer., mai 8
6:15 am - 8:22 amSTL-IAH
2h 07mnonstop
8:11 pm - 10:15 pmIAH-STL
2h 04mnonstop
$250United Airlines
Find Deal
ven., mai 31 - mar., juin 4
5:04 am - 1:06 pmSTL-IAH
8h 02m1 stop
5:44 pm - 11:22 pmIAH-STL
5h 38m1 stop
$251American Airlines
Find Deal
mar., mai 21 - mar., mai 21
9:44 am - 5:37 pmSTL-IAH
7h 53m1 stop
9:37 am - 4:56 pmIAH-STL
7h 19m1 stop
$280American Airlines
Find Deal
mer., juil. 3 - sam., juil. 6
6:15 am - 8:22 amSTL-IAH
2h 07mnonstop
8:11 pm - 10:15 pmIAH-STL
2h 04mnonstop
$287United Airlines
Find Deal
ven., juin 21 - dim., juin 23

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 January, where tickets cost $303 on average. On the other hand, the most expensive months are March and May, where the average cost of tickets is $505 and $428 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 55 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 Spirit Airlines ($104) and Frontier ($107). Spirit Airlines proposed the cheapest one-way flight at $42.

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 4 and 5 nonstop flights that take off from St. Louis and land in Houston George Bush Intcntl Airport, with an average flight time of 2h 14m. The most common departure time is 6:00 am and most flights take off in the morning. Each week, there are 34 flights. The most frequent day of departure is Sunday, when 15% of all weekly flights depart. The fewest flights depart on a Monday.

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 4:57 pm and lands at 7:10 pm.

Good to know

Low season

January

High season

August

Cheapest flight

$42
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 17% lower on average.
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 $42 for a one-way ticket and $104 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, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Houston are United Airlines and American Airlines. With an average price for the route of $356 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $381 and an overall rating of 7.3.

  • 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

Top tips for finding a cheap flight from STL to Houston George Bush Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $217 or less one-way and $385 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 10966 reviews
8.6crew
8.0entertainment
7.9comfort
8.2boarding
7.4food
Airline reviews

Delta is one of the best airlines I have flown

10.0 ExcellentKellie, Apr 2024ANC - SEA
Read more about Delta reviews

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I liked the ease of checking in, luggage check in, wheel chair assistance, boarding and flight.

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

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 plane boarded and deplaned twice before the crew timed out. Flight was 7 hours late departing. Horrible experience!

Got automatically assigned middle seats unless you fork out extra money for a seat assignment, not impressed.

Flight was canceled 12 hours before take-off due to “weather”

The flight was short and that was the best part. The flight was about 90 minutes delayed.

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

Missed the flight because of them and up geting a rental car

Delayd flight out of atl as always miss my conection in dfw no flight untill next day

No problems with flight. Even though I had a short layover in DFW, I was still able to easily make my connection.

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Late boarding to clean plane from previous flight; initial boarding announcement not loud enough; fantastic cabin attendant front of plane

Delayed flight, few announcements with information, no comps, cluster f boarding because zones weren’t spread out and announced loud and repeatedly, staff did their job -nothing more nothing less, annoying kids were speaking and kicking the heck out of the back of my seat and parents weren’t willing to parent… so another typical day of air travel in the US.,

Gossipy flight attendants talked the whole flight about bar hopping and dating.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

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.
5/14mar.
1 stopSpirit Airlines
7h 02mSTL-IAH
$42
5/14mar.
2 stopsSpirit Airlines
24h 30mSTL-IAH
$58
6/19mer.
1 stopFrontier
6h 40mSTL-IAH
$80
5/25sam.
1 stopFrontier
12h 41mSTL-IAH
$84
5/8mer.
3 stops
19h 25mSTL-IAH
$117
5/27lun.
2 stops
18h 00mSTL-IAH
$125
6/13jeu.
nonstopUnited Airlines
2h 07mSTL-IAH
$144
7/20sam.
1 stopAmerican Airlines
6h 12mSTL-IAH
$152
6/18mar.
nonstopUnited Airlines
2h 07mSTL-IAH
$153
7/12ven.
2 stopsAmerican Airlines
7h 59mSTL-IAH
$322

Search by stops

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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.
5/1mer.
multi-stopFrontier
9h 27mSTL-IAH
5/8mer.
multi-stopFrontier
8h 32mIAH-STL
$208
4/30mar.
multi-stopFrontier
12h 04mSTL-IAH
5/1mer.
multi-stopFrontier
8h 32mIAH-STL
$209
5/1mer.
multi-stopSpirit Airlines
18h 34mSTL-IAH
5/6lun.
multi-stopSpirit Airlines
15h 56mIAH-STL
$294
5/1mer.
multi-stop
33h 24mSTL-IAH
5/8mer.
multi-stop
19h 54mIAH-STL
$309
5/1mer.
multi-stop
33h 24mSTL-IAH
5/8mer.
multi-stop
32h 28mIAH-STL
$319
5/1mer.
multi-stopSpirit Airlines
26h 36mSTL-IAH
5/6lun.
multi-stopSpirit Airlines
15h 56mIAH-STL
$323
4/28dim.
multi-stopAmerican Airlines
7h 54mSTL-IAH
5/1mer.
multi-stopAmerican Airlines
5h 50mIAH-STL
$588
4/28dim.
multi-stopAmerican Airlines
7h 27mSTL-IAH
5/1mer.
multi-stopAmerican Airlines
9h 47mIAH-STL
$593
4/28dim.
nonstopUnited Airlines
2h 13mSTL-IAH
5/1mer.
nonstopUnited Airlines
2h 08mIAH-STL
$656
4/28dim.
multi-stopUnited Airlines
5h 37mSTL-IAH
5/1mer.
nonstopUnited Airlines
2h 03mIAH-STL
$666

Search by stops

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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:

$737
$978
$2,674
$238