If you want to take your laptop on board you have to be aware that if you travel with regular flight you can take suitcase with sizes 55 x 40 x 20 cm and suitcase or backpack or handbag for your laptop. If you travel with low cost airlines you have to take only a suitcase or handbag with luggage of your laptop. Of course you will prefer the laptop or will put it in the suitcase or in the handbag. If only the laptop is taken on board you can prefer to not put it in the luggage department as normally the other passenger while putting their own huge suitcases do not care what they can break or damage. They normally push their luggage and can break easily your laptop no matter that it is in a special protected suitcase or bag. For solving this problem you can wait all the passengers to put their luggage in the luggage department and put your laptop last. Or if you prefer you can take it under the seat that is in front of you. This way you can use it after the airplane takes it off, and it will not be necessary to bother anyone while taking it from the luggage department.

If you are flying with low cost airlines, be sure that the bag for your laptop is big enough to accommodate your tickets, money, some book and etc.
Do not forget that on departing and arriving airport they will make you to take your laptop outside of the bag. So be sure you have put your laptop in the bag, so there is nothing over it. Otherwise you will need to take out all the objects and after this take out the laptop. Also do not forget to put fragile objects in different department of the laptop suitcase, backpack or bag. Because in all the rush the fragile object can be broke down and can damage the lid of your laptop seriously.

And last but not least, before departing to foreign country think of the idea what types of wall plugs are being used there and if your laptop plug is compatible with the ones at the place you go. Do not want to leave without battery and no option for charging, am I right.

Enjoy flying with laptop!