Cheap flights from Houston to Saint Louis

Travel > North America > United States > Houston to Saint Louis flights

Check our current prices for flights from Houston to Saint Louis. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Houston to Saint Louis, you will need to run a search below.

Search and Compare cheap Flights

Enter your travel details:Step 1

Flight only
Flight + HotelSave up to 30% on vacations

From (city or airport):
Rooms: 1 2 3 4 5 6
Travelers: 1 2 3 4 5 6
To (city or airport):
Depart (mm/dd/yyyy):
Return (mm/dd/yyyy):
Weekly newsletter (optional)

Select merchants to compare:Step 2

 

From $135 / RT details

Book your flight now with Cheapoair.com and save!

Cheap Saint Louis airfares from $135/RT are provided by Cheapoair.com. Outbound flight is leaving on 03/27/2025, 10:00 pm from Houston Intercont (IAH) airport and arrives at St. Louis Intl (STL) at 09:16 am. The flight time is 11 hours and 16 minutes. The Returning flight departes on 04/01/2025, 04:57 pm (other return dates are also available). Date posted: 10 Feb 2025

Price evolution for flights From Houston To Saint Louis

Recent Deals on Flights from Houston to Saint Louis:Roundtrip / Oneway

• $135 Frontier Airlines 

  From	To	Departure	Time
  Houston, TX (IAH)	Saint Louis, MO (STL)	03/27/2025	10:00 pm
  Saint Louis, MO (STL)	Houston, TX (IAH)	04/01/2025	04:57 pm

  cheapoair.com check price
• $249 Multiple Airlines 

  From	To	Departure	Time
  Houston, TX (IAH)	Saint Louis, MO (STL)	03/27/2025	05:45 am
  Saint Louis, MO (STL)	Houston, TX (IAH)	04/01/2025	04:57 pm

  cheapoair.com check price
• $710 Frontier Airlines 

  From	To	Departure	Time
  Houston, TX (IAH)	Saint Louis, MO (STL)	06/10/2025	08:01 pm
  Saint Louis, MO (STL)	Houston, TX (IAH)	06/18/2025	09:49 pm

  cheapoair.com check price
• $720 Frontier Airlines 

  From	To	Departure	Time
  Houston, TX (IAH)	Saint Louis, MO (STL)	06/17/2025	12:09 pm
  Saint Louis, MO (STL)	Houston, TX (IAH)	07/01/2025	05:22 pm

  cheapoair.com check price
• $262 Spirit Airlines 

  From	To	Departure	Time
  Houston, TX (IAH)	Saint Louis, MO (STL)	03/20/2025	05:45 am

  cheapoair.com check price
• $366 Frontier Airlines 

  From	To	Departure	Time
  Houston, TX (IAH)	Saint Louis, MO (STL)	03/20/2025	06:00 am

  cheapoair.com check price
• $486 Frontier Airlines 

  From	To	Departure	Time
  Houston, TX (IAH)	Saint Louis, MO (STL)	03/26/2025	10:21 pm

  cheapoair.com check price