San Antonio to Houston in September 2026

Dated one-way fares from San Antonio to Houston in September 2026. Use the calendar to see which days are cheaper.

Lowest this month $227

Highest this month $239

Sample fare $227

Airports SAT–IAH

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September 2026 price calendar

From $227 · up to $239

Mon

Tue

Wed

Thu

Fri

Sat

Sun

2 $227 3 $233 4 $233 5 $233 6 $233 7 $239

Houston HOU

$227

Sep 02, 12:00pm · 1h 7m · 0 stops

SAT → IAH · United Airlines

Houston HOU

$239

Sep 07, 6:50pm · 1h 5m · 0 stops

SAT → HOU · Southwest Airlines

This page is only September 2026 on the San Antonio to Houston route. Open the full route if you want the next months side by side.

Prices move as seats sell. Confirm the live itinerary before you book San Antonio to Houston in September 2026.