aftab - i don't know of any airlines that will accept you to work part time as soon as you join the company. part time seems to be very much a priviledge in this industry and many people who are mothers etc, are fighting for the chance to be able to work part time hours. however, there may be smaller companies who do allow this.
most of the charters will start recruiting in october. while sceduled airlines such as virgin, easyjet, ryanair etc. recruit generally all year round.
i finished uni a couple of months early to start my dream job of cabin crew...there is NO WAY i would have been able to do both at the same time. Even though with home standbys your family will think you are working part-time hours, you will soon find that you don't feel like you are!
good luck though!