Several airlines try their best to accommodate families, but it’s not always a guarantee, especially during busy travel seasons. Booking your seats as early as possible can be the best way to ensure your family is seated together. Yet, if you haven't pre-selected your seats, airlines will often prioritize families, especially those traveling with young children. In fact, airlines make a concerted effort to seat a Family on a Plane together, but availability may vary depending on the flight. If you end up with separated seats, checking in early or speaking with the airline staff at the gate could improve your chances of reuniting your family.