How far ahead should you book a college tour?
Short answer: Most campuses release guided-tour and info-session slots 2 to 4 weeks ahead, and popular spring and summer dates fill fast. Book 3 to 4 weeks out where your calendar allows, and earlier for April and July visits at high-traffic campuses.
Large public flagships like Ohio State and UCF often publish their visit calendars a full semester ahead; small selective colleges like Williams and Bowdoin typically open slots only 2–3 weeks out.
If your dates are fixed around a school break, book the campus tour first and build the rest of the trip around it — hotels have more supply than tour slots.