Travel Tips
Flying With Children: A Practical Guide
Children fly better than people expect. The problems come from booking choices, not from the children.
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
| Category | Age | Typical fare | Seat |
|---|---|---|---|
| Infant on lap | Under 2 | 10 percent of adult fare international, often free domestic | No seat |
| Infant with seat | Under 2 | Child fare | Own seat, car seat required by most carriers |
| Child | 2 to 11 | 75 to 100 percent of adult fare | Own seat |
| Young passenger | 12 and over | Adult fare | Own seat |
| Unaccompanied minor | Usually 5 to 14 | Adult fare plus service charge | Own 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
- Every child needs their own passport for international travel, including newborns.
- Children need electronic travel authorizations in their own right, including ESTA, eTA and ETIAS.
- A child travelling with one parent may be asked for a consent letter from the other, particularly for South Africa, Canada and Mexico.
- Carry a full birth certificate where the child's surname differs from the accompanying adult's.
- Infant tickets are issued as a separate document attached to an adult ticket, so check both appear on the confirmation.
- Unaccompanied minor paperwork must name the person collecting the child, with identity details that will be checked.
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.
| Option | Works when | Watch for |
|---|---|---|
| Early morning departure | Short haul, child sleeps in transit | Very early wake up |
| Mid morning departure | Most short haul family travel | Nothing significant, usually the best choice |
| Overnight long haul | Child sleeps reliably in a seat | Failure means a sleepless night for everyone |
| Daytime long haul | Younger children, entertainment available | Arrival in the evening, which helps adjustment |
During the flight
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.
02
Bring more snacks than seems reasonable
Airline catering timing rarely matches a child's schedule, and delays extend the day unpredictably.
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.
04
Ration novelty
Introduce one new small item per hour rather than everything at once. Novelty is the resource, not quantity.
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.
06
Ignore the audience
Crew see this daily and are generally helpful. Most other passengers are far less bothered than anxious parents assume.
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.
Read next
- Passport Validity and Travel Authorizations Around the WorldAirlines check documents because they pay the fine if you are refused entry. That is why the rules are enforced at the desk, not at the border.
- Long-Haul Comfort That Actually WorksThe cabin is a dry, low pressure, immobile environment. Almost everything useful follows from those three facts.
- How Airport Check-In Really WorksCheck-in is not one deadline. It is three, stacked, and airlines only advertise the friendliest of them.