AirHint found the following cheapest return flights from San Francisco (SFO) to Sydney (SYD) in May 2026 (see full year).

Return flights

01 May - 08 May	Fiji Airways
03 May - 10 May	Fiji Airways
06 May - 13 May	Fiji Airways
08 May - 15 May	Fiji Airways
10 May - 17 May	Fiji Airways
13 May - 20 May	Fiji Airways
15 May - 22 May	Fiji Airways
17 May - 24 May	Fiji Airways
20 May - 27 May	Fiji Airways
22 May - 29 May	Fiji Airways
27 May - 03 Jun	Fiji Airways
29 May - 05 Jun	Fiji Airways
31 May - 07 Jun	Fiji Airways
25 May - 01 Jun	Air Canada
26 May - 02 Jun	Air Canada
12 May - 02 Jun	Air Canada
28 May - 04 Jun	Air Canada
25 May - 01 Jun	United	direct
27 May - 30 Jun	Air Canada
12 May - 02 Jun	Qantas	direct

Also check the deals for one-way flights from San Francisco to Sydney in May.

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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Cheapest return flights from San Francisco to Sydney in May from 687€

Return flights