Hey there Dhruvi,
Welcome to planDisney and thanks for your question!
The 3-Day Disneyland Ticket Offer is a great way to save some money when planning your upcoming trip, so I'm happy to hear you're considering it.
When looking at the
Theme Park Reservation Availability Calendar, it looks like there are still reservations available for both parks through the end of the year, so you should be all set with booking those park reservations in your planning.
However, the base
3-Day Disneyland Tickets are available for use from Monday-Thursday, so I'm wondering if you might have been looking at visiting on a weekend day instead and that's perhaps why it looked like those days were blocked off? There is an upgraded version of this special offer where you can pay a bit more but there are no blockout dates, so if you're planning to visit over a weekend then these would be the tickets I'd recommend!
Additionally, this special offer only runs through September 26, which will be here before we know it, so if you're going to take advantage of it - make sure to do so before then!
Thanks again for your question, Dhruvi! I hope you have a great trip to the Happiest Place on Earth next month.
Have a Magical Day,
Greg