$56 Find cheap flights from Houston to St. Louis

In the last 3 days, the lowest price for a flight from Houston to St. Louis was $56 for a one-way ticket and $100 for a round-trip.

Yes, you'll most likely have to show a valid passport before boarding the plane in Houston and on arrival in St. Louis.

When flying out of Houston you will be using one of these airports: Houston Hobby or Houston George Bush Intcntl. You will be landing at Lambert-St Louis.

We unfortunately don’t have that data for this specific route.

Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Houston and St. Louis, with SkyTeam being the most commonly used for this route.

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 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 is likely to change within 7 days, so travelers know whether to wait or book now.

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 with another airline.

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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.