Two space tourists who have already paid "a significant deposit" were supposed to be launched to lunar orbit later this year, SpaceX announced last year.
The booster was not recovered for a second time and was instead allowed to crash into the ocean.
This is part of SpaceX's wider goal to make launching rockets similar to commercial flights, where they "can be flown again and again".
Commenting on the launch, Martin Halliwell, chief technology officer at SES said, "More content". "We're going really high". The good side of all this is it actually extends our (on orbit) life capability from 15 to 22 years.
The satellite could help broadcast television programs directly to more than 18 Million households in the Asia-Pacific region, along with the SES-8 satellite, launched in 2013 by SpaceX. After extensive tests and checkout, SES-12 should enter operational service early next year.
The 12,000-pound SES-12 spacecraft, built by Airbus Defence and Space, will deliver high-speed data to across Asia and the Pacific.
"This is an incredibly flexible satellite that we're putting into our fleet", said John-Paul Hemingway, CEO of SES Networks. This has it carrying larger satellites into orbit. "And satellite is one of the (ways) - and sometimes the only way - to connect.to those markets". "Ironically, we need to take it apart to confirm it does not need to be taken apart".