How to overnight a letter

Wondering how to overnight a letter? Send it via FedEx Standard Overnight, using!

How to overnight a letter

Updated 9.8.2019

If you want to send a letter overnight a letter in the United States (even if you're sending a letter on a saturday), you have a few options for getting next day delivery. This page is a resource that provides details on all the different overnight/next day mail providers, so that you can make the most informed choice. The available options for next day letter delivery are: 

  1. FedEx First Overnight
  2. USPS Priority Mail Express
  3. UPS Express Critical
  4. DHL Same Day

How to overnight a letter via FedEx Overnight

FedEx has 3 overnight services that provide fast delivery to ZIP codes in the U.S. and around the globe to ensure your letter arrives the next business day.

  • FedEx First Overnight provides next-business-day delivery by 8, 8:30, 9 or 9:30 a.m. to most areas and by 10 a.m., 11 a.m. or 2 p.m. to additional extended areas, depending on the postal code of your destination.
  • FedEx Priority Overnight provides next-business-day delivery by 10:30 a.m. to most U.S. addresses; by noon, 4:30 p.m. or 5 p.m. in remote areas; by noon, 1:30 p.m. or 4:30 p.m. on Saturdays.
  • FedEx Standard Overnight (which is supported by provides next-business-day delivery by 3 p.m. to most U.S. addresses, by 4:30 p.m. to rural areas and by 8 p.m. to residences. 

You can learn more about FedEx various overnight services here.

How to overnight a letter via USPS Priority Mail Express

This is the USPS's fastest domestic service, with limited exceptions, available 365 days a year, with delivery to most U.S. addresses, including PO Boxes. USPS Priority Mail Express is currently supported by Features include (but are not limited to):

  • Price includes proof of delivery signature record (if requested at time of purchase), and tracking information with USPS Tracking®
  • Overnight scheduled delivery by 10:30 am, or on a Sunday or holiday available in many major markets for an additional fee

Learn more about USPS Priority Mail Express here

How to overnight a letter via UPS Express Critical

This is the UPS's fastest shipping service for urgent and emergency shipping to all 50 states and Puerto Rico. You can even get same day delivery in some cases by using this service. Features include (but are not limited to):

  • Best available flight, 24 hours a day, 7 days a week, 365 days a year
  • A full range of services, including international, surface, hand-carry or chartered aircraft
  • Automated routing lets you choose from the fastest delivery options
  • Fast pickup and door-to-door reliability give you complete peace of mind

Learn more about UPS Express Critical here

How to overnight a letter via DHL Same Day

DHL Same Day is DHL's fastest, mission critical (almost explicitly designed for emergencies). DHL describes it as:

"For mission-critical international shipments that need immediate pickup and door-to-door delivery within the shortest possible timeframe, choose DHL’s flexible Same Day services – ideal for customized delivery of emergency shipments."

DHL has 2 separate Same Day services: Jetline, and SprintLine. Jetline's provides next available flight out and delivery door-to-door to any global destination within the shortest possible time. Features include:

  • Fully flexible arrangements dedicated for emergency shipments
  • Experienced on board couriers and full air charters possible
  • B2B needs
  • Dedicated customer support desk and shipment handling
  • Global coverage available from specific countries

Sprintline provides next available van or truck delivery door-to-door to any regional destination within the shortest possible time. Features include:

  • Fully flexible arrangements dedicated for emergency/expedited shipments 
  • B2B needs
  • Dedicated customer support desk and shipment handling
  • Regional coverage available from specific countries/regions

Learn more about DHL Same Day here

Here's how to overnight a letter, via is the fastest and easiest way to overnight a letter via FedEx Standard Overnight or USPS Priority Mail Express. Simply put, we're the fastest overnight mailing option because we're simple, we don't require you to create an account or get a subscription, and we're built on top of APIs that interact directly with FedEx and the USPS. Here's how it works:

  1. First, upload your documents at Multiple documents will be printed as part of the same envelope or package. Next, click "Recipient" First, upload the letter you'd like to overnight
  2. Enter the recipient address, including the company name if necessary. We only service domestic US addresses. Once you're done, hit "Sender" to continueEnter the destination/recipient address (Domestic US addresses only at this time)
  3. Enter the return address, again including the company name if necessary. Click the Confirm button to continue.

    Enter your return address (where the mail will go if it cant be delivered to the recipient)
  4. To send your mail overnight, you'll need to select FedEx Standard Overnight, and make sure your mail is in before 3pm EST.

    Select FedEx Standard Overnight, and make sure it's in before 3pm EST. Fe
  5. Confirm your options once more, then choose how you'd like to pay: you can pay securely with your credit card or use Paypal.

    Pay and send!
  6. Enter your credit card to complete the order and have your mailing sent.

  7. That's it! You will receive an email receipt shortly. We will also send you a follow up email with the tracking number once it has shipped, as well as a delivery confirmation email once FedEx confirms that the package has been delivered.

How to overnight a letter via FedEx Standard Overnight (Video Tutorial)

When will my overnight letter be delivered?

If you choose to overnight a letter using, via our FedEx services, your delivery time depends when you place your order, and on waht day of the week you send. SendOvernightMail routes your orders to an open FedEx Kinko's that can fulfill the order. One caveat - during peak times like Christmas season, these SLAs might slip:

FedEx Delivery Times
Ordered By 3PM EST Ordered After 3PM EST 
Order Day Delivered By  Delivered By 
Monday Tuesday Wednesday
Tuesday Wednesday Thursday
Wednesday Thursday Friday
Thursday Friday Saturday
Friday Saturday Monday
Saturday Monday Monday
Sundays Monday Tuesday

These delivery times only apply to domestic deliveries (we don't yet support international deliveries). In addition, delivery is available from Alaska and Hawaii to many U.S. markets by 8 or 8:30 a.m., depending on the destination ZIP code. Delivery is also available to many Alaska markets by 9 a.m. For additional details about Alaska and Hawaii shipments, please see FedEx Alaska and Hawaii services.

Can my overnight letter arrive early?

Actual delivery times are based on several factors, including the specific service you choose, order time, pickup time, local conditions, weather. The SLAs form an upper bound on when your letter should arrive, rather than a precise time of day. From time to time a package ships and delivers sooner than promised, but otherwise the SLAs are as stated above.

What's the maximum number of pages I can overnight?

There's no limit on the number of pages you can overnight with As orders get larger, we split them into multiple packages, and we'll notify you if for some reason we need direction on how to split your package.

How can I overnight bulk mail or mass mail?

You can easily overnight bulk mail (letters, documents, forms, pdfs, word docs, jpgs, pngs and more) to multiple recipients via all of SendOvernightMail's FedEx or USPS Services. You'll need to upload the document(s) you're sending and a spreadsheet of the addresses of all the recipients you're sending to. For more details on our bulk/mass mail option, select here.

When will my USPS Priority Mail Express be fulfilled?

USPS Priority Mail Express orders that are in before 8.45am EST are printed and shipped on the same day. After 8.45am, and on Sundays and USPS Postal Holidays, your mail will be out on the next business day: Printing and Shipping times for USPS Priority Mail Express
Ordered Before 8.45 AM EST  Ordered After 8.45 AM EST 
Order Day Printed & Shipped Printed & Shipped
Monday Same Day Next Business Day
Tuesday Same Day Next Business Day
Wednesday Same Day Next Business Day
Thursday Same Day Next Business Day
Friday Same Day Next Business Day
Saturday Same Day Next Business Day
Sunday & USPS Postal Holidays Next Business Day Next Business Day

When will my USPS Priority Mail Express be delivered?

For USPS Priority Mail Express documents, your delivery speed depends on the time of day you're sending it, where in the country you're sending it to, and so on:

USPS Priority Mail Express: USPS Delivery Service Level Agreement
Ordered Before 8.45 AM EST  Ordered After 8.45 AM EST 
Order Day Delivered By  Delivered By 
Monday Wednesday Thursday
Tuesday Thursday Friday
Wednesday Friday Saturday
Thursday Saturday Monday
Friday Monday Tuesday
Saturday Tuesday Wednesday
Sunday & USPS Postal Holidays Wednesday Thursday is simply the fastest way to send a Fedex letter overnight; your other option is to head to a Kinko's to print and mail your FedEx letter. This option is obviously available to you, but you'll have to leave your home or office to do it, and with, you can just do it from your browser.