Cheapest return flights from San Francisco to Sydney in October from $933

Best time to book flights for San Francisco (SFO) to Sydney (SYD) flights at AirHint

AirHint found the following cheapest return flights from San Francisco (SFO) to Sydney (SYD) in October 2025 (see full year).

Return flights

01 Oct - 25 Oct Alaska Airlines
06 Oct - 14 Oct Alaska Airlines
12 Oct - 31 Oct Vietnam Airlines
20 Oct - 02 Nov Air Canada
06 Oct - 14 Oct United direct
20 Oct - 02 Nov United direct
01 Oct - 25 Oct United direct
12 Oct - 31 Oct United direct

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

Skyscanner

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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney