We're off to the states (Washington DC) in early Jan and are taking the DD (18 months)and DS (6 months) with us as lap children. We'd seriously considered booking at least one extra seat but an extra £500 for the ticket really made a dent in our spending money so decided against it.
I'm now regretting it! We've been told that if there is available room they will be able to sit in their car seats in the spare spots but has anyone had an experience of this? Do we find out when we check in or as we board the flight? Does that mean we have to lug the 2 huge car seats around Heathrow only to find there was never a spot for them after all?!