Cheapest return flights from Portland to Las Vegas in March from $159

AirHint found the following cheapest return flights from Portland (PDX) to Las Vegas (LAS) in March 2026 (see full year).

Return flights

06 Mar - 11 Mar Frontier Airlines direct
10 Mar - 13 Mar Alaska Airlines direct
29 Mar - 02 Apr Hawaiian Airlines direct
25 Mar - 31 Mar Alaska Airlines direct
06 Mar - 08 Mar Frontier Airlines direct
05 Mar - 10 Mar Hawaiian Airlines
05 Mar - 10 Mar Alaska Airlines direct
05 Mar - 08 Mar Alaska Airlines
05 Mar - 08 Mar Alaska Airlines direct
21 Mar - 28 Mar Hawaiian Airlines direct

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

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