How early can you make flight reservations...we are going to Switzerland on Delta May 2013
I think it is 330 days. Call delta and ask.
333 days before the return flight....although if you need to make a connection on a European domestic airline such as KLM City Hopper, you'd probably have to wait a while longer. For example, I tried a hypothetical reservation SEA-CDG, return AMS-SEA for 14 Jan, return 28 Jan, 2013, guessing that if I tried out of VIE, connecting in AMS, it probably wouldn't give me any options.
Thanks guys! Looking forward to a fun trip...wanted to book as soon as I could.