Free shipping can be offered for one type of shipping service and a fee can be charged for a different service for the same item.
Free shipping for standard shipping and flat rate for expedited.
Once again, free shipping can only be offered for the following charge types:
Flat - Same cost to all buyers
In the below example:
For item shipping weight less than pound
Offer Economy Shipping (1 to 10 business days) as free
Offer Expedited Shipping (1 to 3 business days) with a charge
Step 1: On the first line select shipping service you will be offering as free
Step 2: Check the Free Shipping box under the first line
Step 3: Add a new line
Step 4: Select shipping weight less than pound
Step 5: Select the service you'd like to charge for the same item weight
Your item(s) with shipping weight less than a pound will now display 2 shipping options to your customers:
One shipping service for free
The other one chargeable