DHL Express and UPS have joined FedEx and the US Postal Service in increasing their shipping rates beginning in 2014. The price of shipping a package via ground, air and international rates, and air freight within the US, Canada and Puerto Rico using one of these two services increased an average of 4.9%, according to new reports. DHL increased is average shipping price 3.9% on January 2 and the US Postal Serves is raising its prices for competitive package and express services by an average of 2.4% beginning January 26.