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Cheapest Ways to Ship

Ecommerce businesses should always be looking for lower shipping costs since it can protect your bottom line and pass savings on to your customer.

Finding cheaper ways to ship doesn’t require you to negotiate huge contracts with carriers, but you do need to know where to look. There are also long-term strategies and even small everyday changes you can make to cut costs on shipping without cutting corners. Our friends at ShipStation provided a summary below:

Using a Shipping Calculator

Carriers base their rates on distance, delivery speed, weight, shipping service, and package dimensions. Use a carrier’s shipping calculator (easily found on a carrier’s website) to determine the best option for a package based on these criteria.


You can calculate shipping rates on carrier sites with the USPS Postage Price Calculator, FedEx Rate Finder, UPS Calculate Time and Cost, or DHL Rate Quote and Transit Time.

It’s important to remember that carriers also have additional criteria for calculating rates. For instance, it costs more to ship to residential addresses through UPS and FedEx than with USPS. There are also other delivery and fuel surcharges that can be added to a shipment after you generate a label and these may not appear in the initial calculated rate.

Shipping platforms like ShipStation, though, have rate calculators that let you compare all of your carrier accounts’ rates at once. Furthermore, third-party shipping calculators may display these additional charges that are not present when rating in a carrier website directly.

Which carriers have the cheapest out-of-box rates?

USPS is typically the most economical option for US customers, particularly for parcels weighing under 10 lbs. We've broken down a few shipping configurations to show which carriers offer the lowest rates. The following price rankings are based on rates available to you with a Pro Plan and the FedEx Advantage Program, which are both available to ShipStation customers upon signup.

Delivery Speed

Best Options for 2-3 Day Shipping

2–3 day shipping typically works best with USPS Priority Mail. While FedEx and UPS Ground/Home services offer similar delivery times, USPS typically offers the lowest rates. If a package weighs over 10 lbs, though, UPS and FedEx start offering more lower rates—particularly to higher zone shipments.

shipping truck

Best Options for Next Day Shipping

Next Day and Overnight delivery is an area where FedEx and UPS outperform USPS. With strategic hubs located throughout the world, FedEx and UPS are frequently the carrier of choice for expedited shipping. Furthermore, FedEx and UPS planes frequently deliver USPS airmail orders, so you’re paying into these carrier networks anyways.

- UPS Next Day Air Saver® - FedEx Standard Overnight®

Best International Shipping Options

Standard International Delivery

For international parcels 4.4 lbs and under, Global Post and First Class Mail International are the most affordable ways to ship. However, keep in mind that these services have no guarantee on delivery timeframes, so it can take several weeks for final delivery to be made.


Fast International Delivery

For quicker delivery, USPS Priority Mail Express International has the best rates. Beyond that, FedEx offers comparable rates and shorter delivery timeframes with its Economy International service.

Quickest International Delivery

For Expedited services, FedEx International Priority® offers a slight edge over UPS Worldwide Express® and a quicker delivery time than a USPS Priority Mail International Express.

Package Size

The size of a parcel impacts the shipping rate. This has led to higher dimensional weight pricing through carriers. Sorting facilities, delivery vehicles, and delivery persons’ messenger bags only have so much space. One way to maintain steady shipping costs is to opt for Flat Rate packages. These packages don’t always offer the lowest rate, so let’s explore some alternative packaging options.

Best for Envelopes or Flats

First Class Mail is always the most affordable option, with First Class Mail envelopes and flat rate envelopes being the cheapest. If this option doesn’t work, USPS Priority Mail is the way to go. Remember, First Class Envelopes are not trackable.

Best for Small Packages

Generally, the USPS offers the best rates for small packages regardless of if you’re shipping First Class Mail, Priority Mail Package or Flat Rate.

Cubic pricing

USPS Priority Mail offers the best rates on cubic pricing. This is a special service that allows you to ship small, heavy items at a lower shipping rate through the USPS. For items weighing less than 20 lbs, this is the formula for how to find their cubic feet:

Length x Width x Height / 1728 = Cubic Feet Cubic pricing is broken into 5 categories, ranging from 0.1 to 0.5 cubic feet.

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