Yes, USPS delivers on Sunday, but only for specific services. Priority Mail Express arrives seven days a week, Amazon packages move on Sundays across most metro areas, and a growing share of Priority Mail and other parcels now get delivered on Sundays too. What you will not get on a Sunday is regular First-Class Mail, marketing mail, or USPS Ground Advantage, and your local Post Office is almost certainly closed. Below is exactly what does and does not move on a Sunday, why the rules work this way in 2026, how to tell whether your address is on a seven-day route, and how to get something delivered when the weekend cannot wait.
Does USPS deliver on Sunday?
USPS does deliver on Sunday, but it is limited to parcels rather than everyday mail. Three things reliably move on a Sunday:
- Priority Mail Express is delivered 365 days a year, including Sundays and federal holidays. It is the only USPS service with a delivery guarantee that covers the weekend.
- Amazon packages are delivered seven days a week in most cities under a long-standing parcel contract. If you order from Amazon on a Friday or Saturday, a USPS carrier may well drop it on Sunday.
- Priority Mail and other parcels increasingly get Sunday delivery in higher-volume areas, especially during the holiday peak, though it is not guaranteed the way Express is.
Everything else waits for Monday. If you are trying to work out when a specific package should land, the free Delivery Time Estimator gives you a realistic window by service and distance, and our guide to what time USPS delivers covers the daily cutoffs.
What USPS delivers on Sunday vs what it does not
The simplest way to hold the rule in your head is that Sunday is a parcel day, not a mail day. This table sums it up:
| Delivered on Sunday | Not delivered on Sunday |
|---|---|
| Priority Mail Express (guaranteed) | First-Class Mail (letters, bills, cards) |
| Amazon packages (most metro areas) | USPS Ground Advantage |
| Priority Mail (seven-day areas) | USPS Marketing Mail and periodicals |
| Some other parcels in peak season | Standard Priority Mail in non-seven-day areas |
So if you are waiting on a letter, a check sent by regular mail, or a magazine, Sunday will come and go without a visit, and it will typically arrive the next business day instead. USPS Ground Advantage, the ground service that replaced Retail Ground, First-Class Package, and Parcel Select Ground back in 2023, runs Monday through Saturday and is never a Sunday service.
Why does USPS deliver on Sunday at all?
The short version: Amazon. Modern Sunday delivery started in November 2013, when USPS and Amazon struck a deal to move Amazon packages seven days a week, beginning in New York and Los Angeles and expanding quickly across the country. Sunday delivery today is built almost entirely around that parcel volume, plus the premium Priority Mail Express service.
This is a real shift from how the Postal Service used to run. For most of the twentieth century there was no routine Sunday delivery at all, and Post Offices were closed. What changed was not manpower or tradition but economics: e-commerce gave USPS enough weekend parcel volume to make Sunday routes worth staffing. Remember that USPS is self-funded, earning its money from postage and services rather than tax dollars, so it runs Sunday routes where the package volume pays for them and skips them where it does not. That single fact explains almost every quirk of the Sunday schedule, including why big metro areas get robust Sunday service while thinly populated rural routes often get none.
How to tell if your address gets Sunday delivery
There is no public map of seven-day routes, but a few signals tell you where you stand. Dense metropolitan and suburban areas almost always have Sunday parcel delivery because the Amazon and Priority volume supports it. Rural and low-volume ZIP codes frequently do not. The most reliable read is your own tracking: once a package is scanned, USPS posts an estimated delivery date, and if that date falls on a Sunday, your address is on a route that runs that day. You can also look back at past Amazon orders, since a history of Sunday arrivals is a good sign that future parcels can land then too. When you are unsure whether a specific date is even a delivery day, the free Postal Holiday and Delivery Day Checker settles it in a couple of seconds.
Does USPS pick up mail on Sunday?
Generally, no. Blue collection boxes are not emptied on Sundays, and carriers are not out collecting outgoing mail. If you drop a letter in a blue box on Sunday, it sits until the next scheduled pickup, usually Monday morning, so nothing you mail on a Sunday actually starts moving until the new week.
The one exception is scheduled Package Pickup. If you print a Priority Mail Express label and request a pickup, USPS can collect Express items on Sunday in areas that offer Sunday service, since those carriers are already running parcel routes. For everyday mail, though, Sunday pickup does not happen, so plan any Sunday send-out around Monday acceptance.
Are Post Offices open on Sunday?
Almost never. Retail Post Office counters are closed on Sundays as a rule. A small number of larger postal facilities keep self-service kiosks accessible, and some contract postal units inside other businesses may follow that host store’s hours, but you should not count on buying stamps or shipping a package at the counter on a Sunday. Behind the scenes it is a different story: clerks, mail handlers, and the trucking network keep sorting and moving mail through processing centers on Sundays so that Monday starts on schedule. In other words, the mail is still flowing through the system on Sunday even though the lobby doors are locked and letter carriers are not out with regular mail.
What time does USPS deliver on Sunday?
Sunday delivery times are less predictable than weekday times. On a normal weekday, routes run in a fairly consistent order, so mail tends to reach you around the same time. Sunday routes are lighter and built around whatever Express and Amazon volume exists that day, so a package can show up early in the morning or well into the evening. USPS lists Priority Mail Express delivery as generally by 6:00 p.m., but Sunday and holiday parcels often arrive later than that, sometimes into the evening. If you are tracking something specific, our breakdown of how late USPS delivers explains the realistic evening cutoffs, which apply to Sundays as much as weekdays.
How to get something delivered on a Sunday
If you genuinely need Sunday delivery, you have one dependable option and one lucky one.
The dependable option is Priority Mail Express. It carries a date-certain guarantee that includes Sundays and holidays, so it is the only way to actually promise weekend arrival. To hit a Sunday, send it early on Friday or on Saturday, and confirm the delivery commitment for that exact route first. A Sunday or holiday surcharge applies to Express items delivered on those days, so you are paying a premium on top of the already-higher Express rate, but you are buying a real guarantee in exchange.
The lucky option is standard Priority Mail. In seven-day parcel areas it may arrive on a Sunday, but there is no guarantee, so treat any Sunday arrival as a bonus rather than a plan. Before you pay for Express, it helps to confirm whether the destination is even on a seven-day route and what the realistic arrival date is. Run the addresses through the Delivery Time Estimator, and if you are still deciding between carriers for a weekend delivery, our full ZIP-to-ZIP mail delivery time guide compares expected speeds side by side.
Do UPS and FedEx deliver on Sunday?
They can, and in some cases more broadly than USPS. FedEx delivers to many residential addresses on Sundays through FedEx Home Delivery, having expanded seven-day residential service in recent years. UPS also delivers on Sundays in a growing number of areas, largely driven by the same e-commerce demand that pushed USPS into weekend parcels. So if Sunday arrival is essential and your USPS options look thin for your ZIP, it is worth comparing carriers rather than assuming USPS is the only route. Our Shipping Cost Comparison tool lines up USPS, UPS, and FedEx side by side so you can weigh weekend speed against cost for your specific package.
What about Saturday?
Saturday is a much fuller service day than Sunday. USPS delivers regular First-Class Mail, packages, and most services on Saturdays, and many Post Offices keep limited Saturday counter hours. If your question is really about the weekend as a whole, the companion guide on whether USPS delivers on Saturday walks through exactly what moves on Saturdays and which locations stay open. Between the two, Saturday is the reliable weekend delivery day and Sunday is the parcels-only exception.
Sunday delivery on holidays
Holidays follow the same logic as Sundays, only stricter. On federal holidays, USPS suspends regular mail delivery and closes Post Offices, but Priority Mail Express still runs, since it is the guaranteed 365-day service. Amazon and other parcel deliveries may or may not run depending on the holiday and your area. When a holiday lands next to a weekend, delivery schedules can shift by a day, and a Monday holiday effectively creates a three-day gap in regular mail, so checking the Postal Holiday and Delivery Day Checker before you ship around a holiday will save you a guessing game.
Frequently asked questions
Does USPS deliver mail on Sunday?
USPS delivers parcels on Sunday, not everyday mail. Priority Mail Express is delivered every day including Sunday, Amazon packages move seven days a week in most areas, and some Priority Mail arrives on Sundays. First-Class Mail, Ground Advantage, and marketing mail are not delivered on Sundays.
Does USPS deliver packages on Sunday?
Yes. Priority Mail Express packages are delivered on Sundays year-round, and Amazon packages are delivered on Sundays across most metro areas. Standard Priority Mail parcels are also delivered on Sundays in higher-volume regions, though it is not guaranteed.
What time does USPS deliver on Sunday?
Sunday delivery times are less predictable than weekdays because routes are lighter. Packages can arrive anywhere from early morning to the evening. Priority Mail Express is generally delivered by 6:00 p.m., but Sunday parcels sometimes arrive later.
Are Post Offices open on Sunday?
As a rule, no. Retail Post Office counters are closed on Sundays. A few larger facilities keep self-service kiosks available, but you should not count on counter service, buying stamps, or shipping in person on a Sunday.
How can I tell if my address gets Sunday delivery?
Check your tracking once a package is scanned; if the estimated delivery date lands on a Sunday, your route runs that day. Dense metro and suburban areas almost always have Sunday parcel delivery, while rural and low-volume ZIP codes often do not.
How can I guarantee a Sunday delivery?
Use Priority Mail Express, the only USPS service with a date-certain guarantee that covers Sundays and holidays. Ship early on Friday or on Saturday, confirm the delivery commitment for that route, and expect a Sunday or holiday surcharge.
The bottom line
USPS does deliver on Sunday, but only for Priority Mail Express, Amazon packages, and a widening set of Priority Mail and parcel routes, largely thanks to the Amazon partnership that started in 2013. Regular letters, Ground Advantage, and marketing mail all wait for the next business day, and your local Post Office counter is closed. If you need something in a recipient’s hands on a Sunday, Priority Mail Express is the only service that will promise it, it is worth confirming the delivery date for that specific route before you pay, and it is always worth checking whether UPS or FedEx serves your address on Sundays too.
