Cheapest return flights from San Francisco to Sydney in May from $903

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 May 2025 (see full year).

Return flights

06 May - 13 May Fiji Airways
01 May - 29 May Frontier Airlines
22 May - 31 May Fiji Airways
03 May - 10 May Fiji Airways
05 May - 18 May Delta
13 May - 29 May Delta
12 May - 15 May Frontier Airlines
05 May - 26 May Cathay Pacific
16 May - 26 May Philippine Airlines
25 May - 01 Jun United
13 May - 29 May United direct

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

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.

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