Postal Letter

what are the average delivery times for usps, fedex ground, dhl, fedex, and ups?

also how much does each one of the companies i mention charge for a 1/2 ounce of mail

Public Comments

1. USPS First Class Mail Letter, 41¢, 2-3 days First Class Mail Flat, 80¢ First Class Mail Parcel, $1.13