(This post contains affiliate links)
I've been in love with the online shop TeaBox for some time now. Not only do they have a "regular" online shop, but they do also have subscription options (various weight and it's costumized to what types of tea you like).
I recently purchased a couple of packages with Craigmore Classic Winter Frost Black Tea from the Nilgiri tea estate on sale and I really love the tea. One of the bigger bonuses with TeaBox is that even when you click on the "air mail" option the package arrives relatively quickly, considering it's shipped from India.
By the way, if you want to purchase anything from TeaBox, feel free to use this link and we both get $10 off on the next purchase.