This guide covers Saturday delivery rules, Sunday delivery options, holiday exceptions, and practical tips for making weekend shipping work in 2026.
TLDR: Quick Answer on USPS Weekend Delivery
- Saturday is a standard USPS delivery day with no extra fees for most services
- Sunday delivery is limited to Priority Mail Express (with a $12.50 surcharge) or Amazon-partnered shipments
- Federal holidays block all regular deliveries regardless of day
- Packages move through USPS sorting facilities 24/7, even when delivery isn't scheduled
Does USPS Deliver on Saturday?
Yes, Saturday is a regular delivery day for USPS. Carriers complete their full routes just as they do Monday through Friday, and no additional fee applies to standard services. Saturday delivery is included across the most popular USPS retail options, making it one of the most reliable weekend shipping days.
Which USPS Services Deliver on Saturday?
The following USPS services include Saturday delivery at no extra charge:
- First-Class Mail — Letters, flats, and small parcels weighing up to 13 ounces
- Priority Mail — 1-3 day service with tracking and up to $100 insurance
- Priority Mail Express — The only service with guaranteed Saturday delivery dates
- USPS Ground Advantage — Economy ground service for packages up to 70 lbs
With Priority Mail Express, you can select Saturday as your guaranteed delivery date at checkout — something no other retail USPS service allows. If hitting a specific Saturday deadline matters, it's the only option that locks it in.
USPS Saturday Delivery Hours
USPS carriers typically run their routes between 9 AM and 5 PM on Saturdays, matching weekday schedules. During peak holiday periods or for guaranteed services, deliveries may extend to 6:30 PM.
Priority Mail Express has a separate cutoff: the guaranteed delivery time is 6 PM. The Postal Service eliminated the optional 10:30 AM window in 2021, moving all Express deliveries to the 6 PM cutoff.
How Much Does Saturday Delivery Cost?
Here are the 2026 starting rates for the services that include Saturday delivery:
| Service | Starting Rate | Notes |
|---|---|---|
| First-Class Mail | $4.15 | Letters, flats, and small parcels up to 13 oz |
| USPS Ground Advantage | $7.30 | Economy option for packages up to 70 lbs |
| Priority Mail | $11.95 | Flat Rate Envelope; zone-based pricing for boxes |
| Priority Mail Express | $33.25 | Flat Rate Envelope with guaranteed delivery |
No Saturday surcharge applies to any of these services. The rate you see on a weekday is the rate you pay on Saturday.
Does USPS Deliver on Sunday?
USPS Sunday delivery is limited to specific services and partnerships. Most customers won't have access unless they meet narrow criteria.
What Services Deliver on Sunday?
Only two types of shipments qualify for Sunday delivery:
- Priority Mail Express — Guarantees next-day or two-day delivery 365 days a year, including Sundays, for an additional $12.50 surcharge
- Select Amazon packages — Delivered via USPS in eligible metro areas through a negotiated service agreement; Amazon determines eligibility, not the sender
Amazon's Sunday delivery arrangement routes packages to USPS for last-mile delivery in participating ZIP codes. Customers cannot request this service directly—it's determined by Amazon's logistics network.
USPS Sunday Delivery Hours and Cost
Priority Mail Express Sunday delivery is guaranteed by 6 PM for most destinations. The $12.50 Sunday/holiday surcharge applies on top of the standard Priority Mail Express rate, which already starts around $28–$33 for flat rate options.
For example, shipping a Priority Mail Express Flat Rate Envelope on Sunday would cost $33.25 (base rate) + $12.50 (Sunday surcharge) = $45.75 total.
What Features Come with Sunday Delivery?
Priority Mail Express Sunday service includes:
- Full refund if delivery misses the guaranteed window (money-back guarantee)
- Real-time tracking as the package moves through the network
- $100 built-in insurance coverage for merchandise and documents
- Signature confirmation available at checkout for proof of delivery
- Free Flat Rate envelopes, boxes, and tubes from USPS
- Free carrier pickup scheduled at your home or office
If Sunday delivery is time-sensitive, Priority Mail Express is the only retail USPS option that guarantees it — but plan for the surcharge when comparing rates against FedEx or UPS weekend services.
What Days Does USPS NOT Deliver?
USPS does not deliver on federal holidays, even if they fall on a Saturday. Here's the 2026 holiday schedule:
- New Year's Day — Thursday, January 1
- Martin Luther King Jr. Day — Monday, January 19
- Presidents Day — Monday, February 16
- Memorial Day — Monday, May 25
- Juneteenth — Friday, June 19
- Independence Day — Saturday, July 4
- Labor Day — Monday, September 7
- Columbus Day — Monday, October 12
- Veterans Day — Wednesday, November 11
- Thanksgiving Day — Thursday, November 26
- Christmas Day — Friday, December 25
When a federal holiday falls on Sunday, USPS observes the holiday on the following Monday, which can push standard deliveries back two full days for anything shipped over that weekend — worth factoring in if you're cutting it close on timing.
If timing is critical around a holiday, Priority Mail Express may still deliver for the $12.50 premium — but availability varies by location and isn't guaranteed. When in doubt, dropping off at a multi-carrier ship center like ShipMate+ in Vista gives you the flexibility to compare USPS, UPS, and FedEx options side by side before committing to a service.
Do USPS Packages Still Move on Weekends?
Yes. Even when USPS doesn't deliver to your door on a given day, packages continue moving through USPS sorting and distribution facilities over the weekend. Processing centers operate 24/7, meaning transit time keeps ticking and packages may arrive sooner than expected on Monday.
Want to confirm your package is moving? Use USPS tracking to check weekend activity—scans at sorting facilities will show updates even if no delivery attempt was made. Tracking updates may be less frequent on Sundays for non-Express services, but the package is still in transit.
Tips to Make the Most of USPS Weekend Shipping
Timing Your Drop-Off
To maximize the chance of Saturday delivery, drop off packages at a USPS location before their cutoff time—typically 5 to 6 PM on Friday. For Sunday Priority Mail Express delivery, packages must be dropped off Saturday before the local post office closes.
ShipMate+ in Vista, CA offers a convenient alternative to standing in post office lines. The store is open Saturday from 9 AM to 1 PM and serves as a USPS-authorized drop-off location. USPS pickup occurs at 11 AM on Saturdays, so drop off before then to ensure same-day processing.
Choosing the Right Service
Match your service to your deadline:
- Priority Mail — Best cost-to-speed balance when Saturday arrival is preferred but not required
- Priority Mail Express — The only option for guaranteed Saturday or Sunday delivery
- USPS Ground Advantage / First-Class Mail — May arrive Saturday at no extra charge, but delivery isn't guaranteed
Tracking and Insurance
Use USPS tracking for any weekend shipment—with Priority Mail Express, tracking confirms the guaranteed delivery time. For high-value packages, add insurance and signature confirmation to protect against loss or theft.
For customers who can't be home to receive weekend deliveries, ShipMate+ offers private mailbox rentals with 24-hour access, free package receiving from all carriers, and email/text notifications when shipments arrive. This eliminates the risk of packages sitting unattended on your porch over the weekend.
Frequently Asked Questions
Does USPS deliver on Sunday?
USPS delivers on Sundays only via Priority Mail Express (with a $12.50 surcharge) and select Amazon packages in eligible areas. Regular mail services like First-Class or Ground Advantage do not deliver on Sundays.
Can USPS deliver packages on Saturdays?
Yes, Saturday is a standard delivery day for USPS with no added fees. Services including First-Class Mail, Priority Mail, Ground Advantage, and Priority Mail Express all qualify for Saturday delivery.
What days does USPS not deliver?
USPS does not deliver on any federal holidays. When a holiday falls on Sunday, Monday is typically observed instead, which can cause additional delays for packages shipped over that weekend.
Do USPS packages still move on weekends?
Yes, packages continue moving through USPS sorting and distribution facilities on weekends even when door delivery is not scheduled. Transit time counts, and tracking will still show scans at processing centers.
How much does it cost to overnight a letter?
Priority Mail Express starts at $33.25 for Flat Rate Envelopes, with an additional $12.50 surcharge for Sunday or holiday delivery. Rates vary by weight, destination, and package type.
