When flying from Oakland, California to Busan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Due to multiple factors, expect to potentially pay more when booking in June. For low rates, November can be a great choice for travel to Busan. Flights to Busan from Oakland, California in November are about $1,576 on average during November, but can be found for as low as $1,234.