Cheapest one-way flights from San Francisco to Sydney in April from $488

AirHint found the following cheapest one-way flights from San Francisco (SFO) to Sydney (SYD) in April 2026 (see full year).

One-Way flights

18 Apr Alaska Airlines
07 Apr Alaska Airlines
22 Apr Alaska Airlines
01 Apr Frontier Airlines
11 Apr Frontier Airlines
06 Apr Frontier Airlines
09 Apr Frontier Airlines
28 Apr Alaska Airlines
24 Apr Alaska Airlines
26 Apr Alaska Airlines

Also check the deals for return flights from San Francisco to Sydney in April.

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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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