Order online delivery from Sonic (155 Slaughter Lane) to enjoy some of the best comfort food in Austin. Looking to find the cheapest way to order Sonic (155 Slaughter Lane)? Choose the most affordable, or the quickest delivery option listed below. Enjoy them in the comfort of your own home, since they deliver in Austin. Don’t wait another day to treat yourself to their delicious comfort food. Get some Sonic (155 Slaughter Lane) delivery today!