All orders ship from north Texas. We use USPS and UPS as our domestic carriers.
USPS is only used for orders below $45. Packages ship as (tracked) First Class shipments, meaning it'll typically take a day or two to deliver in Texas, 3-4 days for east coast, 4-5 days for west coast and everywhere in between. Alaska and Hawaii can take up to 10 days.
Orders over $45 ship via UPS SurePost, with upgrade options for Ground and 2-day. SurePost is a hybrid option, offering the reliability of UPS, but with USPS taking care of the 'last mile' delivery. This means that the shipping time is the same as Ground, plus one day. If UPS are delivering another package to you on the same day, then they'll also deliver the SurePost package - they only hand-off to USPS if they're not delivering to you in the delivery day.
Orders over $100 ship via UPS Ground, again, with upgrade options to 2-day if needed.