Logistics and costs vary by study abroad program. Each program has its own page with cost information, as well as information about academics, housing, and eligibility requirements. Students can search for programs based on the estimated total cost of the program (among many other important criteria). Note that cost estimates on the study abroad program page generally do not include the student's personal recreational travel and entertainment. Recreational travel is the single greatest discretionary expense for most study abroad participants.
Yes, on many programs, financial aid still applies.