6 months. You can reserve up until the day of the show but it fills up fast so i wouldn't wait. If you already waited and it's full just keep checking you might get lucky. It is a great show.
Definitely get your reservation as quick as you possibly can, six months out, the show does feel quickly but is worth every penny
The sooner you book, the closer you are to the stage.
6 months
6 months out is best or you may not get seating. 180 days in advance
6 months, get seating group 1, the rest are chance in good seating
180 days, or if you have a confirmed disney resort reservation you can book 190 days out
6 months is usually as soon as you can book, and do it as soon as possible! This show fills up fast because its so good. Disney world has a reservation hotline to call if you need more information
Everything at DW fills fast, use a Disney certified travel agent as soon as you decide you're going to go. They know all the inns and outs and will make for a stress free vacation......and its pretty much free service to you. Most get a commission from Disney for booking vacations.
You'll want to try and book months in advance because it is very popular (depending on the time of year you plan on going). We went this past Christmas and I booked mine a couple of weeks before we left, but I had to check the site every day and we were lucky enough to get a 4 PM dinner/show time last minute due to cancellations.
Months
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