I bought 10 tickets at 8:01 am on 12/22. They shipped at 9:41 am the same day, regular 1st class mail. I expected them in 10 days, especially that close to Christmas. I received them at 2:09 pm on 12/24. And we are in the Pacific Northwest!
When you order, they ask you when you need the tickets so they can ship those that are priority. Also, I had to sign for the shipment, so be aware of that.