AirHint found the following cheapest return flights from Oakland (OAK) to Singapore (SIN) in June 2026 (see full year).

Return flights

05 Jun - 08 Jun	Japan Airlines
01 Jun - 26 Jun	Qatar Airways
02 Jun - 23 Jun	Qatar Airways
24 Jun - 29 Jul	Qatar Airways
04 Jun - 26 Jun	Qatar Airways
08 Jun - 29 Jun	Qatar Airways
04 Jun - 30 Jul	Qatar Airways
19 Jun - 17 Jul	Korean Air

Also check the deals for one-way flights from Oakland to Singapore in June.

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 Oakland to Singapore in June from $1725

Return flights