I have 2 ceiling fans littleton by hampton bay model 270614 I need to replace the blades where can I buy them ?

Check with Home Depot or online here.
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&sqi=2&ved=0CD8QFjAC&url=http%3A%2F%2Fwww.ceilingfanreplacementparts.co m%2F&ei=tNBSVPiuCsOqgwSV7YP4Bw&usg=AFQjCNFaBEE6PeiX85xEKdf0vSnOcECHvw&sig2=9cYcXicEkhFoj1jSvZQLLw&bvm=bv.78677474,d.eXY

Yep, ma gave good advice. Brand of fan doesn't matter much replacement blades are mosr often universal but not all. Keep in mid this is a very inexpensive fan which can be totally replaced for about $24 http://www.sensetosustain.com/270614-42inch-littleton-hamptonbay.html