I attempted to search, but I could not find any relevant threads based on my search terms. We are wanting to book a trip to Greece for June 2015. As I want to be sure I can book Business Low award travel, I'm not comfortable with waiting until the return leg opens up for booking in order to book the departure leg. With AA, we can book one-way awards and I can split the departure and return legs into separate bookings, but it doesn't appear that US has this luxury (for now).

What do I need to do to book these awards on US at the 335-day mark for each leg? I could book with AA miles (and in fact, we will be doing that since my father and stepmother will be coming with us and I'm planning to use miles across both programs), but they open up at 331 days vs. 335 days on US.