Car pulls to the right on the highway

A pull that started right after a tire rotation often points to the tires themselves rather than alignment. A tire with an internal belt shift, or uneven wear patterns moved from the back to the front, can make the car drift. This is sometimes called radial pull.

A simple test a shop can do is swap the two front tires side to side. If the pull moves to the left, it is a tire issue. If it stays to the right, alignment, a sticking brake caliper, or a worn suspension part becomes more likely.

Also check whether one front wheel is noticeably hotter than the other after a drive (carefully, without touching the brake parts). A dragging brake can cause a pull and is a safety issue. Since steering and brakes are involved, please have it inspected rather than driving with the pull for a long time.