S$178 Cheap Flights from St. Louis to Houston

View S$178 flight on Wed, 17 Jun, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)

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Cheap Flights from St. Louis to Houston (STL-IAH)

Prices were available within the past 7 days and start at S$178 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much is a flight from Lambert Field to IAH?
Pack your bags, because round-trip journeys from Lambert Field to George Bush Intercontinental Airport (IAH) start from . That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book today to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to Houston Airport?
Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Lambert Field to Houston Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for STL to IAH flights, you'll see a "no change fees" filter for you to select.
How far is the flight from STL to IAH?
A flight distance of just 1,100 kilometres separates St. Louis and Houston. Once you're up in the skies, you won't have time to do much more than listen to some short podcasts.
Which airlines fly direct from STL to IAH?
United Airlines (UA) will take you from Lambert Field to IAH safely and comfortably. Take your pick of 91 direct flights each month along this route.
Are St. Louis Lambert International Airport to George Bush Intercontinental Airport (IAH) flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes nab a bargain, with some super cheap airfares from STL to George Bush Intercontinental Airport (IAH) arising a few weeks before the departure date. If you'd rather plan ahead, Expedia compares and updates all the best flight deals continuously — as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines advertise prices so far in advance.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
George Bush Intercontinental
Distance
1068 km
Average flight time
2 hours 21 mins

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