I am coming to US in B2 (tourist) visa. I am flying on April 10, 2012 and my return ticket is on Dec. 10, 2012 (exactly 8 months apart). I am hearing that return ticket should be within 6 months otherwise I will not be allowed to enter at port of entry. I asked this question to US embassy in Kathmandu but they did not provide me the substantive information on this. Please share your experience if you have deal this situation before.

Thanks!!!