Order online delivery from Sonic (6816 Mcneil Rd) to enjoy some of the best brunch in Austin. Looking to find the cheapest way to order Sonic (6816 Mcneil Rd)? 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 brunch. Get some Sonic (6816 Mcneil Rd) delivery today!