Singapore Airlines released its Northern Summer operating schedule (25 March 2012 - 27 October 2012) and announced increased capacity from Adelaide, Brisbane and Perth as part of frequency adjustments across the airline's network in order to match capacity to prevailing demand for travel.

Adelaide services will increase to 10 times per week from seven, while Brisbane and Perth will each be served 21 times per week, rather than 19 and 18, respectively, as in the last Northern Summer schedule.

Frequency to the Maldives’ capital Male will increase to two flights per day from the current 10 flights per week. The four additional flights will be daytime flights, enabling SIA to offer customers a choice of seven daytime flights and seven nighttime flights per week.

Mumbai services will be increased to 19 per week from 17.

An additional daily service will be introduced to Seoul, increasing frequency to four flights per day from three, including one flight that continues to San Francisco.

Frequency reductions will meanwhile be implemented in select markets during the Northern Summer schedule.

Singapore–Moscow–Houston services will be reduced to five times weekly from daily. Singapore–Munich–Manchester services will be reduced to six times weekly from daily.

Singapore–Taipei services will be reduced to 14 per week from 18.

Some Middle Eastern services will also be restructured during the Northern Summer season. Flights to Riyadh, which are currently served via Abu Dhabi, will instead operate via Dubai. This will result in Abu Dhabi being served three times per week, down from seven times, with flights carrying on to Jeddah. Dubai will continue to be served with 10 flights per week, four of which will carry on to Riyadh and three to Cairo.

Consolidated details of the changes in the Northern Summer schedule can be found in the table on the next page.