Travelling with 23 month old twins should we book seats??

No experience of US flights, but can you go through the process of booking online and see how many seats are left?

Or consider getting one seat for them to share - ie a couple of hours at a time each, to give your laps a rest?

Under two's do not usually get their own seat unless its been paid for in advance. If there is no pre-paid seat each child will have to remain on a parent's lap for the duration of the flight. Would not like to leave to chance there perhaps being a empty seat next to you for the flight in either direction.

Each child will in any event have to be on a parent's lap for both take off and landing. You will be provided with a seat belt for this purpose.

Most airlines charge for kids age 2 and over so if they turn 2 while you are away they will have to have their own seats anyway.

I've been on about 6 flights with the dts, I've always got seats for them, without paying. Because of the limited number of oxygen masks for infants, you have to sit seperately from your partner, and we have two older kids as well, so it was easier to give us two rows of three for all of us. Not sure if you would get the same or not, it is a gamble. But I've found that mine aren't event aht keen on sitting in their own seats, and I'm not actually much looking fw to having to make them sit in their own seats with a belt on this year, as they will be 2.5 when we go away.

If they are 2 when they return, the airline has to give them a seat free of charge for that part of the journey.