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

Return flights

01 May - 15 May	Qantas
05 May - 15 May	Qantas
10 May - 25 May	Singapore Airlines
06 May - 20 May	Singapore Airlines
13 May - 27 May	Virgin Australia
18 May - 27 May	Virgin Australia
20 May - 03 Jun	Virgin Australia
27 May - 10 Jun	Virgin Australia
18 May - 03 Jun	Virgin Australia
31 May - 15 Jun	Virgin Australia
17 May - 01 Jun	Virgin Australia
24 May - 08 Jun	Virgin Australia
03 May - 18 May	Virgin Australia

Also check the deals for one-way flights from Adelaide to San Francisco 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 Adelaide to San Francisco in May from $1067

Return flights