Airlines will do everything they can at the airport to assist families that self-identify as needing to seat together to their agents. Even if the airline is unable to seat the entire family together, they may be able to ensure that each youngster is placed close to an adult member of the family.
However, once on board the aircraft, the captain makes the decision on who sits with whom. If a family feels like they cannot sit together, there are two options: they can either ask the flight crew for another seat assignment or they can pay a additional fee and have their luggage carry-on sized. Whether the family asks for a new seat assignment or carries one bag, it's important to remember that you and your children are not being removed from one seat assignment to another. You're being given more room in which to travel.
The carry-on size option is available only if you purchase this option before you check in online or at the airport. The charge for this option is $50 per person plus any applicable taxes. This option gives you and your children extra space when checking in and boarding the plane. But it does not guarantee that you'll be able to sit together once on board the aircraft.
If you feel like you need to separate from your child for whatever reason, whether it's security or hygiene issues, there are many things you can do.
While the airline is not bound to seat you together unless you pay an additional fee to reserve seats, the agent may be able to make an exception or note in the reservation that you are traveling with children, which may come in handy later.
Say it aloud: "Pause." If you're travelling with someone else, you could wish to reserve a window and an aisle seat (leaving the middle seat empty) in the hopes that it won't be occupied. Even if it happens, the individual will most likely swap with you since no one wants to sit between two people who are passing a baby back and forth.
The best seat in an aircraft for an infant is either an aisle or a window seat. It's important not to force a child to use the bathroom before takeoff because they might have an accident which could cause damage to the interior of the plane. The crew needs enough time to clean up any mess before landing the plane.
Middle seats are least recommended for infants due to the difficulty in getting them into and out of them. They are also less safe because an adult must be present in case of an emergency situation. Sitting with your arms around the seat in front of you while your infant sleeps in the next seat over is all that's required in most cases.
You should consider the type of aircraft you'll be flying in when choosing a seat for your infant. For example, if there are booster seats available, you should install them before takeoff so children can enjoy the ride too!