When flying from Adelaide to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
For a flight from Adelaide to San Juan, you will be flying from Adelaide. Adelaide (ADL) is just 6.6 km from the centre of the city. Adelaide is the only Adelaide airport and it handles 0 outbound flights to San Juan per day. 0 airlines have flights to San Juan from Adelaide on a regular basis.