How to overnight a letter

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

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:

  1. FedEx First Overnight
  2. USPS Priority Mail Express
  3. UPS Express Critical

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.

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

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

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. 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)

SendOvernightMail is unparalelled in flexibility. Please email us at with questions, comments concerns or suggestions!