Cheapest return flights from Portland to Las Vegas in August from $196

Best time to book flights for Portland (PDX) to Las Vegas (LAS) flights at AirHint

AirHint found the following cheapest return flights from Portland (PDX) to Las Vegas (LAS) in August 2025 (see full year).

Return flights

27 Aug - 02 Sep United
01 Aug - 04 Aug Alaska Airlines direct
28 Aug - 01 Sep Alaska Airlines direct
27 Aug - 02 Sep Alaska Airlines direct

Also check the deals for one-way flights from Portland to Las Vegas in August.

Skyscanner

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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