Are passengers allowed to carry backpacks on airplanes

Yes, of course! ''Normal-sized'' is the key term here.

Yes, you can bring a backpack. I has to be able to fit in the overhead bin or under the seat in front of you. It will have to be x-rayed in the security line, but as long as you do not have anything illegal in there, you're fine.

Yes,

You are allowed to carry 2 carry ons. One backpack and your computer.

I travel a lot and this is what I do.

So you know you will leave the Earth for a while do not you?

It is going to be exciting.

of course

you are allowed one carry-on (small luggage that fits regulation, plus a purse or backpack). Once a friend was told he has to check-in his luggage because he has a back pack, he pointed to a lady with large purse and hinted discrimination. They let him take both.

YEa.. one person is actually allowed teo handbags .. that yu can put in the cabin thingy .. over under yur seat

yes, you can take it as a carry-on. As long as you have no liquids in it or weapons or anything like that, you can take it. If you buy something inside the airport like a water or something though, you can take it.

yeah acorss.As long as u do not have anything that your not supposed to have in the backpack then you will be fine.An easier way to do it would to just put it in your suitcase.

yeah your fine,have fun where ever your going

Yes as long as it will fit into the device which measures carry-on bag size.

Yes i do it all the time. please note when you dont carry much you can be marked as a suspect not sure why.

yes if there normal sized, your allowed 2 carry on bags

Yeah, each person is allowed 1 carryon and 1 ''personal item'' which in essence is another carry on. Your backpack should be fine.

yes

yes. If its normal sized and you dont have anything that could be taken then you will be fine.