FFL Helper
Houston HOU
$65
ONT → IAH · Frontier Airlines
FFL Helper / Ontario / Houston / September 2026
ONT → HOU · 2026-09
Ontario to Houston in September 2026
Dated one-way fares from Ontario to Houston in September 2026. Use the calendar to see which days are cheaper.
Lowest this month
$65
Highest this month
$65
Sample fare
$65
Airports
ONT–IAH
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Other months: August 2026 · September 2026 · October 2026 · Full route
September 2026 price calendar
September 2026
From $65
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$65
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Dated fares
Booking ONT to HOU in September 2026
This page is only September 2026 on the Ontario 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 Ontario to Houston in September 2026.