BD (before digital) I always put my film in hand luggage simply because the xray levels are lower than those for cases as I understand it.
The higher the ASA film the more likely to be damaged but I doubt you'll have more than ISA 400, more likely 100 for Florida so it should be OK
You can always ask for it to be hand inspected at security as there are those who swear that even the hand luggage screening can cause a foggy effect.