FFL Helper / Houston / St Louis

HOU → STL

Houston (HOU) to St Louis (STL)

Compare one-way fares for flights from Houston to St Louis.

Lowest fare $102

Distance 680 mi

Flight time 11h 42m

Airports IAH–STL

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By month: October 2026 from $134 · November 2026 from $102

Price calendar

October 2026

From $134

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31 $134

November 2026

From $102

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Upcoming dates

St Louis STL

$102

Nov 13, 6:00am · 11h 42m · 1 stop

IAH → STL · Frontier Airlines

Tickets

About this route

This calendar shows dated one-way fares from Houston to St Louis. Use it to see which days are cheaper before you search tickets.

Flight time and airport codes on this page are for the sample itinerary we have on file. Always confirm the live routing when you book Houston to St Louis.