Question for people who might know better: I know this does not help people who don't have the means to do this but is it legal for someone in one of the states where this is banned to travel to a state where it is legal to get an abortion?
At this point, yes. Some states, like Missouri, have already hinted at trying to halt travel for abortion, however freedom of interstate movement (unless bound or prevented via incarceration or other legal decree on an individual basis) is guaranteed in the constitution. States will probably also try to prevent outside organizations from providing travel assistance.