As these posts evidence, the time needed to get to the airport is well understood, frequencies are good, so I don't see much of a problem EXCEPT for those who have an early flight and face the tube's late start.
Originally Posted by
adrianlondon
It was around 10 years ago that I went to KL and I took the KLIA, although it only cost around £5 then. A quick google shows it to be £10 now with current exchange rates.
KLIA Ekspres is great, fast and cost effective,
if you're on your own and happen to be staying at one of the station hotels. If you're a couple/party, or going to need a final taxi to your hotel/home (not close to an LRT station and/or you have bags) it's likely cheaper and much more convenient, less faff, using taxi from the airport.
Bargain transport is the bus at £2. Comfortable, of course air-conditioned, half-hourly, it takes about one hour to Sentral. From there the same onward connection caveats apply.