Kuala Lumpur Airports -KLIA 1 vs KLIA 2

What's the difference between KLIA 1 (the main international terminal) and KLIA2 (the budget low cost terminal)? Here's a quick comparison as noted from my recent trips- via KLIA 1 with Malindo and many earlier trips via KLIA2 with Air Asia. [AirAsia vs Malindo detailed comparison in this post]

#	Factor	KLIA1	KLIA2	Remarks
1	# of security checks for transit passengers	1	2	In KLIA2 one security check as you enter transit area, one more as you enter your zone
2	Inter terminal movement	Train	Walk
3	Key attractions	News Zone, Movie Zone, Waterfalls (KLIA Jungleboard)	Movie Zone, shop
4	Walkalators available?	Yes	Yes
5	Food & shop options	More	Decent
6	Sleeping area	Available (flat benches), easy to find	Hard to find
7	Lounges	Available	Available
8	Used by	All full service airlines	Low cost airlines
9	Free drinking water	Available	Available
10

Today, if you're arriving in KLIA 1 but connecting to another flight leaving out of KLIA2 or vise versa you will need Malaysia visa. Many passengers do not realize this and end up begging with immigration officials for ad-hoc visa else where will miss their flight.

There is a proposal to link KLIA 1 to KLIA 2 so that transit passengers can connect between terminals without needing Malaysia Visa



Of course KLIA1 is long way to go if it has to catch up with neighboring Changi