Cheapest return flights from Las Vegas to Porto in December from 424€

AirHint found the following cheapest return flights from Las Vegas (LAS) to Porto (OPO) in December 2025 (see full year).

Return flights

27 Dec - 17 Jan KLM
30 Dec - 06 Jan Frontier Airlines
17 Dec - 04 Jan jetBlue

Also check the deals for one-way flights from Las Vegas to Porto in December.

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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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