Yes, you can upgrade your day ticket to an annual or seasonal pass at LEGOLAND New York, but it must be done in person on the day of your visit. Upgrades cannot be done online. You can upgrade at any time during the day, as long as it is before the ticket window closes.
This upgrade option is available for tickets purchased through the LEGOLAND website only. The upgrade price is calculated by applying the value of your day ticket towards the standard price of the annual or seasonal pass you select, and you pay the difference. Enjoy the benefits of unlimited visits and exclusive perks with your new pass!