Cheapest return flights from Portland to Sydney in March from $1129

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

Return flights

18 Mar - 09 Apr Air Canada
20 Mar - 27 Mar Qantas

Also check the deals for one-way flights from Portland to Sydney 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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