One reason why Air Asia is cheaper in MYR is because it's a Malaysian company, so they don't take foreign exchange risk nor pay bank fees when selling to you in

One reason why Air Asia is cheaper in MYR is because it's a Malaysian company, so they don't take foreign exchange risk nor pay bank fees when selling to you in ringgit. For even more fun, try buying KTM (Malaysian rail) tickets in MYR vs. e.g. SGD. They will charge you the same numeric price, ignoring the exchange rate of about 2.5:1. This works much the same as the airlines pricing by sales region.