I am glad you asked. I wanted to know this. I have flown before with arosal things (hair spray etc..)
I found this sun screen I love and I wanted my Niece to bring it with her when she was meeting us on a vacation we drove too, but she was flying too. We were on an Island that was hard to get to and my brother said they wouldn't allow it checked on the plane. I thought that was nuts.
I am now wondering if we can bring it with us when we fly to WDW in Jan. It works really well and I just love it. I guess maybe I will have to bring some with me.
I have shaving cream (2 small cans, one for hubby one for me) with me every time I fly. I have never had a problem with it. The last time I have flown was May 2005