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Travel Tips

Flying With Children: A Practical Guide

Children fly better than people expect. The problems come from booking choices, not from the children.

Palm lined courtyard pool at a family resort hotel

Marcus Reiner · May 17, 2026 · 8 min read

The single most useful thing to know is that the age categories airlines use are fixed at the date of travel, not the date of booking. A child who turns two during the trip needs a seat for the return, and airlines will apply that rule strictly.

Fare categories

CategoryAgeTypical fareSeat
Infant on lapUnder 210 percent of adult fare international, often free domesticNo seat
Infant with seatUnder 2Child fareOwn seat, car seat required by most carriers
Child2 to 1175 to 100 percent of adult fareOwn seat
Young passenger12 and overAdult fareOwn seat
Unaccompanied minorUsually 5 to 14Adult fare plus service chargeOwn seat, escorted

Child discounts have been shrinking. On many low cost carriers a child pays the same as an adult, and infant charges are per sector rather than per journey. Budget for close to full price on anyone over two.

Seats, bassinets and car seats

  • Bassinets attach to bulkhead walls, have weight limits usually between 10 and 14 kg, and are limited in number. Request one at booking and reconfirm before travel.
  • Bulkhead rows are the only rows with bassinet positions, and they are frequently released only at check in on some airlines.
  • An approved car seat can be used in a purchased seat on most carriers, and is the safest option during turbulence. Check the airline's approval markings requirement.
  • Children under a certain age cannot sit in exit rows, and adults travelling with them cannot either.
  • Airlines are generally required to seat young children with an accompanying adult without charging for it, though systems handle this inconsistently. Contact them if seats are split.

Documents

  1. Every child needs their own passport for international travel, including newborns.
  2. Children need electronic travel authorizations in their own right, including ESTA, eTA and ETIAS.
  3. A child travelling with one parent may be asked for a consent letter from the other, particularly for South Africa, Canada and Mexico.
  4. Carry a full birth certificate where the child's surname differs from the accompanying adult's.
  5. Infant tickets are issued as a separate document attached to an adult ticket, so check both appear on the confirmation.
  6. Unaccompanied minor paperwork must name the person collecting the child, with identity details that will be checked.
Calm shoreline with clear shallow water at golden hour
Family destinations with short transfer times and direct flights reduce the total travel day more than any onboard tactic.

Scheduling the day

Timing choices do more work than anything you pack. Direct beats connecting almost regardless of price on any journey with a child under five, because the difficulty scales with the number of transitions rather than with hours in the air.

OptionWorks whenWatch for
Early morning departureShort haul, child sleeps in transitVery early wake up
Mid morning departureMost short haul family travelNothing significant, usually the best choice
Overnight long haulChild sleeps reliably in a seatFailure means a sleepless night for everyone
Daytime long haulYounger children, entertainment availableArrival in the evening, which helps adjustment
Flight timing with young children

During the flight

  1. 01

    Ears on climb and descent

    Feeding, a bottle, a dummy or chewing all help. Descent is worse than climb, so keep something in reserve for the last forty minutes.

  2. 02

    Bring more snacks than seems reasonable

    Airline catering timing rarely matches a child's schedule, and delays extend the day unpredictably.

  3. 03

    Pack a change of clothes for the child and for you

    Experienced parents pack the second one. It is the item most often missing when it is needed.

  4. 04

    Ration novelty

    Introduce one new small item per hour rather than everything at once. Novelty is the resource, not quantity.

  5. 05

    Walk when it is safe to

    Movement resets a difficult mood faster than any device, and the galley area is usually tolerant of a short visit.

  6. 06

    Ignore the audience

    Crew see this daily and are generally helpful. Most other passengers are far less bothered than anxious parents assume.

Wide beach with families walking near the water in soft light
The journey is a few hours. Choosing a destination with a short transfer at the far end shapes the whole trip more than the flight does.

Frequently asked

Do infants get a baggage allowance?

Usually a small one, commonly 10 kg or one piece, plus a stroller and car seat carried free. Lap infants on low cost carriers sometimes get nothing beyond the changing bag.

Can I take liquids for a baby through security?

Yes. Baby milk, formula, water for making feeds and baby food are exempt from the 100 ml rule in most countries. Declare them at the checkpoint and expect them to be screened separately.

What age can a child fly alone?

Most airlines accept unaccompanied minors from five, with a compulsory paid service usually up to eleven or twelve and an optional service above that. Rules differ on connecting flights, and many carriers refuse them entirely.

Is family boarding still offered?

Widely, though it has become less consistent. Ask at the gate rather than assuming, and note that boarding early means longer in the seat, which is not always the better choice.