Check your airlines policy for traveling with children. If your infant is under two you may be eligible for the infant fare which commonly is only 10% of the adult fare. On the larger international planes the infant will be provided with a clip-on bassinet to sleep in while in transit. When not sleeping the baby will have to be on your lap. A night flight will be more convenient.
Do your homework. Research as much as you can about the airport you will be going to and from. Find out about any facilities they have to accommodate families. Airports from around the world have a large range of facilities, nurseries, changing rooms, even indoor playgrounds to help pass the time.
Pack your carry-on accordingly. Have plenty of snacks on hand and activities to keep your little ones busy. Try not to pack any snacks with creams or white substances. These may be thrown out during your security check. Liquids for a baby 50ml and under are usually acceptable. Have a smaller wallet sized bag with just your diaper changing supplies, and another one with travel documents handy when needed. Make sure not to forget those special items, like a blanket from home or teddy for comfort.
Some inflight entertainment will be provided. When flying internationally the planes provide movies and games for the older children which will keep them busy for hours. For the smaller children try to get a window seat. The busy buzz of the plane being loaded is very exciting. A new toy can be equally exciting.
Redirect your child’s attention. If your little person is feeling unsettled or irritable try to divert attention to something that might be interesting. Go for a walk around the plane, chat to the attendants, check the views from windows in common areas. If there are any empty seats maybe changing seats for a moment will help to calm them down. Keep in mind small ears may not adjust to the new elevation as easy as ours and could be causing them some discomfort.