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

Return flights

13 May - 20 May	Fiji Airways
31 May - 31 May	Fiji Airways
22 May - 29 May	Fiji Airways
20 May - 29 May	Fiji Airways
13 May - 10 Jun	Fiji Airways
22 May - 12 Jun	Fiji Airways
08 May - 13 May	Fiji Airways
19 May - 27 May	United	direct
12 May - 25 May	United	direct
13 May - 18 May	United
05 May - 02 Jun	United	direct
12 May - 09 Jun	United	direct
19 May - 16 Jun	United	direct
07 May - 13 May	United	direct
05 May - 13 May	United
25 May - 01 Jun	United	direct
27 May - 10 Jun	United
31 May - 08 Jun	United
21 May - 12 Jun	United
03 May - 02 Jun	United	direct

Also check the deals for one-way flights from Melbourne 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 Melbourne to San Francisco in May from $624

Return flights