USPS shipping time varies based on package type and the sender's and receiver's locations. For most domestic deliveries, expect 1-3 days. Remote areas may take longer. For example, deliveries from Texas to California typically take 2 days.
Here's a summary of delivery times from USPS:
• Priority Mail Express: 1-2 days guaranteed by 6 pm
• Priority Mail: 1-3 days
• First Class Mail: 1-5 days
• First Class Package Service: 2-5 days
• USPS Retail Ground: 2-5 days
• Media Mail: 2-8 days