Cheapest return flights from Austin to Porto in May from 482€

AirHint found the following cheapest return flights from Austin (AUS) to Porto (OPO) in May 2026 (see full year).

Return flights

05 May - 12 May Iberia
04 May - 12 May Iberia
05 May - 13 May Iberia
02 May - 10 May Virgin Atlantic
06 May - 13 May British Airways
06 May - 14 May British Airways
02 May - 09 May British Airways
04 May - 11 May British Airways
03 May - 11 May British Airways
11 May - 19 May British Airways
26 May - 02 Jun Air France
26 May - 03 Jun Delta
27 May - 04 Jun British Airways
28 May - 04 Jun Delta
25 May - 02 Jun British Airways
28 May - 05 Jun United
27 May - 03 Jun British Airways
24 May - 01 Jun British Airways
25 May - 01 Jun British Airways
31 May - 08 Jun British Airways

Also check the deals for one-way flights from Austin to Porto in May.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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