Cheap flights from St. Louis to Northwest Houston

View AU$183 flight on Mon, 18 Aug. 2025Opens in a new window

Popular airlines from St. Louis to Northwest Houston

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from St. Louis (STL) to Northwest Houston (HOU)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, 15 Aug. - Sun, 17 Aug.
STL
St. Louis
IAH
Houston
AU$375 Return, found 6 days ago
AU$375
Return
found 6 days ago
Select American Airlines flight, departing Fri, 15 Aug. from St. Louis to Houston, returning Sun, 17 Aug., priced at AU$375 found 6 days ago
Delta
Fri, 15 Aug. - Sun, 17 Aug.
STL
St. Louis
IAH
Houston
AU$414 Return, found 6 days ago
AU$414
Return
found 6 days ago
Select Delta flight, departing Fri, 15 Aug. from St. Louis to Houston, returning Sun, 17 Aug., priced at AU$414 found 6 days ago
United
Fri, 15 Aug. - Sun, 17 Aug.
STL
St. Louis
IAH
Houston
AU$453 Return, found 6 days ago
AU$453
Return
found 6 days ago
Select United flight, departing Fri, 15 Aug. from St. Louis to Houston, returning Sun, 17 Aug., priced at AU$453 found 6 days ago
Delta
Fri, 15 Aug. - Sun, 17 Aug.
STL
St. Louis
IAH
Houston
AU$467 Return, found 6 days ago
AU$467
Return
found 6 days ago
Select Delta flight, departing Fri, 15 Aug. from St. Louis to Houston, returning Sun, 17 Aug., priced at AU$467 found 6 days ago
Delta
Fri, 15 Aug. - Sun, 17 Aug.
STL
St. Louis
IAH
Houston
AU$468 Return, found 6 days ago
AU$468
Return
found 6 days ago
Select Delta flight, departing Fri, 15 Aug. from St. Louis to Houston, returning Sun, 17 Aug., priced at AU$468 found 6 days ago
American Airlines
Fri, 15 Aug. - Sun, 17 Aug.
STL
St. Louis
HOU
Houston
AU$483 Return, found 6 days ago
AU$483
Return
found 6 days ago
Select American Airlines flight, departing Fri, 15 Aug. from St. Louis to Houston, returning Sun, 17 Aug., priced at AU$483 found 6 days ago

Find the cheapest month to fly from St. Louis (STL) to Houston (IAH)

September is typically the cheapest month to fly

From AU$169 - AU$289 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.