broke a bone in my ankle today goin to jamaica on sunday will they let me fly do i need a note from doctor?

call whatever airline you are flying with.  
i can't see it being a big problem tho.

 
 
split (clamshell) the cast before you fly so it doesn't get tight on you at 36,000 ft, where no one has a cast cutter..

ask your doctor

I broke my foot in early December and flew to Calgary at Xmas time. No problem. By that point I had a walking boot, so wasn't such a bother with just a half cast and crutches. Good luck.  

I suggest calling the airline.  
And so sorry to hear this!

Yeah,that won't raise any suspicions from the already hyper paranoid airport security...lol  
A cast with a slit down the side....hmmm  
Can anyone say cavity search! lol

Rick Taylor said "Yeah,that won't raise any suspicions from the already hyper paranoid airport security...lol   A cast with a slit down the side....hmmm   Can anyone say cavity search! lol "

both coming and going. Set off the alarm bells...lol. Lots of fun.  
Course, it was just in Canada...hate to know what it's like elsewhere..

be a problem...did you get hardware put in? Might set off the security alarms.

Metal surgical implants may also set off detectors, bring a note from a doctor to avoid hang ups due to increased security precautions.  
 
http://jamaica-guide.info/getting.there/air.travel  
 

to all who replied i am going to a specialist tommorow and have got a note from my doctor that says i have a medical reason to have a cast on