Sure you can---you can book up to 11 months out. We are also going in June and have had our air booked since this past July
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You should have no problem booking flights 333 days out from departure on most airlines....
Last June we booked our trip to CSA with our travel agent for 4-14-12. We received our flight numbers and seat assigments at the same time. I would suggest contacting a travel agent. Our travel agent found more flight options also.
CSA just 99 days away!!!!
Cotton Bowl, go Wildcats!