text: If you need a post office that is open late this one is open the latestnnCant tell you how many times I have tried to find a post office that is open later than the one in my neighborhood until I discovered this one It is on Sunset right across the street from McCarran Airport is open till pm MondayFriday and pm on Saturdays As much as I like my local office Silverado for convenience this one seems to be the go to place if you do not want an overwhelmed staff and want to get in and out in a relatively efficient amount of time They also do passport stuff in case you need to get that taken care ofnnHowever being the main post office in Las Vegas it does have a big of a huge warehouse type feel to it Almost think the ambiance of a Costco with envelopes in place of food samples Also despite the extended hours the overnight shipping deadline is relatively early pm I have been to other post offices where the deadline has been closer to pm so that is something you got to keep in mind Also if you are coming from South Strip andor the Henderson area it is probably easier to access this place by heading north on Paradise It is right there on your right as the street ends rather than dealing with traffic on Sunset