Since this is the last Grand Prix in Malaysia (at least for the time being), Sepang International Circuit are selling all tickets at discounted rates at up to 82% off except for paddock club.
Grandstand seats are around $212 for all three days.
The track is literally over the road from KLIA so a whirlwind stay is easily accomplished using hotels inside the airport.
This season looks to be particularly good as well so it'd be well worth attending.
What a shame we will be travelling through KL the weekend before and after, we seem to always be just a week or two out. This is the middle weekend of NSW school holidays and the long weekend so perfect for those looking to get away!