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Founded in 1991 and headquartered in Austin, LSO sets a new standard as a leading regional parcel carrier, offering a full range of next-day, day-definite guaranteed deliveries. LSO also offers extended pick-up times, early morning delivery options, and competitive rates throughout Texas, Oklahoma, western Louisiana, southeastern New Mexico, and beyond.

ShipEngine is fully partnered with the LSO shipping API, which means you can do all of your shipping from one place. There’s no need to export order details to any other software. Just select the service, view your negotiated rates, and print your labels (one at a time or in a batch).

We Support

Special Offer from LSO – Ship 10 Get $25

For a limited time, sign up with LSO and LSO will send you a $25 Amazon gift card after shipping your first 10 packages!

Ship and You Shall Receive

Our LSO Package Points™ program rewards you every time you ship, with points redeemable for stuff you love.

Lower Express Rates

LSO’s Express Shipping rates are 15-25% less than global carriers

Live Customer Service

Talk to a real, live LSO Customer Service Rep @ 1.800.800.8984