What is the estimated regular mail delivery time between zip code 99005 and 98106?

I'm sorry, but regular mail delivery time between two zip codes depend on various factors such as mail volume, distance between the zip codes, weather conditions, and transportation delays. While the United States Postal Service does provide estimated shipping time frames for certain services like Priority Mail or Express Mail, they do not provide such estimations for regular mail.

The delivery time of regular mail sent between two zip codes can range from 1-3 business days, but this can vary depending on the specific locations.