Cheapest return flights from Oakland to Singapore in September from $827

Best time to book flights for Oakland (OAK) to Singapore (SIN) flights at AirHint

AirHint found the following cheapest return flights from Oakland (OAK) to Singapore (SIN) in September 2025 (see full year).

Return flights

23 Sep - 14 Oct Korean Air
24 Sep - 15 Oct Korean Air
09 Sep - 15 Sep Korean Air
02 Sep - 23 Sep Korean Air
03 Sep - 24 Sep Korean Air
02 Sep - 09 Sep Korean Air
09 Sep - 12 Oct Korean Air
17 Sep - 17 Oct Korean Air
30 Sep - 21 Oct Japan Airlines
17 Sep - 08 Oct Qatar Airways
16 Sep - 07 Oct Qatar Airways
25 Sep - 03 Oct Qatar Airways
02 Sep - 04 Oct Korean Air
09 Sep - 30 Sep Korean Air
10 Sep - 01 Oct Qatar Airways

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

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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