The Butterfly Labs FAQ says they use USPS for shipping (except for Mini Rigs), and displays the options "Standard" and "Express" during the checkout process:
However, the USPS website appears to offer "Express" shipping (1-3 business days) and "Priority" (6-10 business days) for international shipping.
I'm sure people out there have received FPGA devices internationally from BFL in the past, probably with the same international shipping options. Can anyone confirm that delivery times of BFL hardware are equivalent to the two options I found on the USPS website?