Hello Haleigh, it depends on the costume size & shipping method you chose. :)
*If you buy the standard size (2 weeks processing time) & use free shipping (20-30 days shipping time), you should order it 6-7 weeks before the date you want it.
*If you buy the standard size (2 weeks processing time) & use fastest shipping (UPS, 4-6 days shipping time), you should order it 3-4 weeks before the date you want it.
*If you buy the custom size (3 weeks processing time) & use free shipping (20-30 days shipping time), you should order it 7-8 weeks before the date you want it.
*All shipping information (including methods, cost & estimated delivered date) will be shown in order page, before payment.
*Please remember to mark down the date (you need it) in the order form when you order it. :)