I and my brother are due to travel to Italy next week with my DS1 who is 3 and my DS2 who is 8months. I need to change my flight to the next day so I can attend a funeral. DS will be very happy with uncle and will join grandparents and aunt and cousins, so I'm comfortable with that arrangement, and I will follow 24h later. Will the airline object? What should I do to enable them to travel together? If you have experience of this, I'd love to hear. Thanks in advance.