To get from Kajang to Penang Island (Pulau Penang) the quickest way to travel is to take the direct ETS Kajang to Butterworth train operated by Malaysian Railways (Keretapi Tanah Melayu Berhad - known as the shorter name of KTM or KTMB).
These trains operate on the Gemas to Butterworth ETS route (laluan), however, for more options, you could easily take a cheap KTM Komuter train to KL Sentral station first, then take a more frequent train from there to Butterworth station (Penang Sentral).
(Jadual ETS dari KTM Kajang ke Butteworth)
KTM Kajang to Penang Sentral Butterworth ETS train timetable:
New train timetable from the 15th of January 2022 (2022-01-15):
For more options for trains heading to Butterworth you can take a KTM Komuter train from Kajang to KL Sentral Railway Station, then take a more frequent ETS service from KLS to Butterworth.
To see all the ETS train services heading north, see the following timetable:
(Tambang / Harga Tiket KTM dari Kajang ke Butterworth)
With KTM now charging different prices using the Flexi Fares system, what you pay will now depend on when you buy your tickets (the further in advance the cheaper the fare) and at what time of year and day you want to travel.
For a full explanation of the Flexi Fare system and all basic fares to Butterworth:
When travelling by ETS train in Malaysia you should always book your tickets in advance when you can, as trains can be full during busy periods and it is now cheaper under the flexi fare system.
To book advance tickets you can visit any KTMB ETS train stations ticket counter and buy your tickets in person.
Once you arrive at Butterworth, it is a short walk over to the main Penang Sentral terminal building where you can take a ferry over to Georgetown on Penang Island or connect to local and long-distance bus services.