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Flying with babies and children

Lap infants, child seats, documents and practical tips for a calmer family flight. · 4 min read · Updated October 2026

Family trips need a little more planning. Here is what to know before you book.

Lap infant or own seat?

On US domestic flights, children under 2 can usually travel on an adult's lap without a seat of their own. On international flights, lap infants normally pay a reduced fare plus taxes. Each adult can usually hold only one lap infant. The US Federal Aviation Administration (FAA) recommends that young children fly in their own seat, in an approved child restraint.

Car seats and child restraints

If your child has their own seat, you can use a car seat labelled as approved for aircraft use. Check your airline's width limits and seating rules; car seats generally cannot go in exit rows. Most airlines carry strollers and car seats free of charge.

Documents

  • Children need their own passport for international travel.
  • Airlines may ask for proof of age, such as a birth certificate, for lap infants.
  • If only one parent is travelling with a child abroad, carry a signed consent letter from the other parent.

Practical tips

  • Choose flight times around naps where possible.
  • Feeding or a pacifier during take-off and landing can help with ear pressure.
  • Pack a change of clothes for the child and for yourself in the carry-on.

Source: FAA, Flying with children, https://www.faa.gov/travelers/fly_children. Airline rules vary.

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