Not used with the iPad Air Smart Case however the case I have on my iPhone 5 offers the same kind of access around the lightning connection and this AmazonBasics cable works perfectly. No guarantees but I'd be surprised if it didn't with your case.
By essay2509 on 28 November 2013
I must admit I don't seem to have that problem. I bought the cable in November this year and I only use it to charge my Iphone 5 mobile and it works perfectly well for me and I'm still currently using it.
By Tina on 27 December 2013