Hey there Michele,
Welcome to planDisney and thank you so much for your questions! I'm thrilled to see that you're planning a trip to the Disneyland Resort later this year during the
Halloween season.
To figure out which days will have fireworks, you'll want to check the
Hours & Events Schedule when you get a bit closer to your trip. That schedule is updated and shows all daily events six weeks out from the current date, so if you check back in late August or early September then you should be able to see all that will happen on the days of your visit.
For Oogie Boogie Bash - A Disney Halloween Party, there are two main places that I would recommend keep an eye on. First is the
Disney Parks Blog! This is the best place to get all the up-to-date information on what is happening around the Disneyland Resort. In previous years, they have published articles on Oogie Boogie Bash - A Disney Halloween Party including when tickets would go on sale. Second is the
event page itself for Oogie Boogie Bash - A Disney Halloween Party, which will also include more details once they become available. Since these tickets are quite popular, I would recommend planning on being ready to purchase yours as soon as they go on sale.
As for your
theme park tickets, these are the same price whether you buy them online through the Disneyland Resort website or in-person at the parks. However, I would definitely not recommend waiting to purchase them until you arrive since you also need
theme park reservations for each day you plan to visit along with your park tickets to visit one of the parks of the Disneyland Resort. Therefore, if you purchase tickets online then you can also make your theme park reservations during the purchase process to make sure you'll be able to visit on the dates that you planned since park reservations are subject to availability.
Thanks again for your question, Michele! I hope you have a wonderful visit to the Happiest Place on Earth.
Have a Magical Day,
Greg