Cheapest one-way flights from Portland to Los Angeles in March from $28

AirHint found the following cheapest one-way flights from Portland (PDX) to Los Angeles (LAX) in March 2026 (see full year).

One-Way flights

07 Mar Frontier Airlines direct
13 Mar Frontier Airlines direct
08 Mar Frontier Airlines direct
29 Mar Frontier Airlines direct
26 Mar Frontier Airlines direct
27 Mar Frontier Airlines direct
04 Mar Southwest Airlines
19 Mar Frontier Airlines direct
18 Mar Alaska Airlines
10 Mar Alaska Airlines

Also check the deals for return flights from Portland to Los Angeles in March.

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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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