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Cheapest one-way flights from Houston (HOU) to Porto (OPO), March

Select a price to book. see full year.

Dates, airline, and price
Dates	Airline	Price
02 Mar	United
03 Mar	United
08 Mar	United
09 Mar	United
07 Mar	Air France
05 Mar	British Airways
06 Mar	British Airways
04 Mar	British Airways

deals for return flights from Houston to Porto in March.

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Updated Jul 17, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Houston (HOU) to Porto (OPO), March

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