Ear pain, diaper blowouts, and a security line that doesn’t know your rules — here’s what actually matters when flying with an infant.
Flying with a baby is a totally different experience to traveling with an older child. Anyone who has flown with an infant knows they can find aspects unsettling and even frightening. Even the most-baby friendly airports can still struggle to make the process completely stress-free and some don’t seem to have taken small children into account at all. And the flights themselves have aspects that are unavoidably uncomfortable for little kids.
This guide covers the infant-specific parts — ears, feeding, gear, and security — rather than general child-travel advice, which our guide to traveling with kids covers separately.
Book a Bulkhead Seat and Ask About a Bassinet
On longer flights, bulkhead seats — the row immediately behind a cabin divider — often have bassinet hooks on the wall in front of you. These allow a small infant to sleep flat in a cot-style cradle rather than in your arms, which makes a meaningful difference on a six- or eight-hour flight. Bassinets need to be requested directly with the airline when you book, not at check-in, and they’re allocated first-come-first-served. Call as soon as your booking is confirmed. Weight and size limits vary by airline, but most accommodate infants up to around 20lbs (9kg).
Feed or Offer a Pacifier During Climb and Descent
Babies can’t equalise ear pressure by yawning or chewing gum the way adults can. Nursing, offering a bottle, or giving a pacifier during takeoff and landing keeps them swallowing, which does the same job — and it’s the single most effective thing you can do to prevent the ear-pressure crying that often peaks at these moments. Pack a clean pacifier in an accessible outer pocket specifically for this, not buried at the bottom of the bag.
TSA Rules for Breast Milk and Formula
Breast milk, formula, and juice for infants are exempt from the standard 3.4oz liquid limit. You can bring reasonable quantities for the trip, but you do need to declare them separately at the security checkpoint rather than packing them in with your regular liquids bag. TSA may test the liquids, which is routine and not a reason to worry; knowing it’s coming makes it less startling. Ready-to-feed formula pouches travel easily and bypass the need for any mixing on the plane.
What Counts as a Personal Item for Baby Gear
Diaper bags, car seats, and strollers generally don’t count against your carry-on allowance — airlines treat them as necessary baby equipment. Most strollers and car seats can be gate-checked for free, which means they travel to the jetbridge rather than the cargo hold and are available immediately on arrival. Confirm your specific airline’s policy before you fly, since procedures for gate-checking versus hold-checking do vary. A compact, lightweight travel stroller is worth the investment if you fly regularly with a baby.
What to Pack in the Diaper Bag
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Diapers — one per hour of total travel time, door to door, plus three or four extras for the blowout that will happen at the worst possible moment.
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A full pack of baby wipes — useful for far more than changing, and impossible to have too many of on a long travel day.
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Two complete changes of clothing for the baby, including a vest and socks.
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A change of top for you — this is not optional; it will be needed!
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A portable changing mat — aircraft lavatories have fold-down changing tables, but a clean surface matters.
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Any feeding supplies: bottles, formula or pumped milk, nursing cover if you use one.
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A small tube of nappy cream — long flights increase rash risk, and treating early is better than managing a sore baby mid-air.
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A dummy/pacifier, ideally two — in case one goes on the floor.
Babywearing Through Security
A soft-structured baby carrier lets you keep both hands free through the security line and boarding, which matters more than it sounds like when you’re also managing a stroller, a diaper bag, and your own carry-on.
Most carriers can go through the metal detector without removing the baby, but TSA officers may ask you to step aside for additional screening. It’s not unusual, just build in a few extra minutes. Check TSA’s current guidelines before you fly since baby-related screening procedures do get updated.
Keeping the Baby (and Yourself) Comfortable In-Flight
Cabin air is very dry, which affects infants as much as adults. A little saline nasal spray can help if the baby seems congested in the last hour of a long flight.
Dress the baby in layers rather than one heavy garment so you can adjust to cabin temperature changes.
A familiar blanket or soft toy from home helps with settling — the smell and feel of something familiar matters to an infant in an unfamiliar environment.
Pack something for yourself too: earplugs and a podcast for when the baby eventually sleeps and you need quiet of your own.
✈️ Find Flights
Use Skyscanner to compare fares across airlines and dates. Booking around three months ahead generally gives the best prices on most routes; flexibility on dates can reduce the fare further.
🛡️ Travel Insurance
Considering travel insurance for your trip? World Nomads offers coverage for emergency medical expenses, trip cancellation, lost luggage, and more than 150 adventure activities.
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Keep all medical receipts and contact your insurance provider as soon as any emergency arises.
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Bring a full supply of prescription medicines in their original packaging with prescription labels attached.
The Short Version
Book a bulkhead seat and request a bassinet for long flights. Feed or pacify during pressure changes. Declare breast milk and formula separately at security. Pack one diaper per hour plus spares, full wipes, and a change of clothes for both of you. Gate-check the stroller rather than checking it to the hold. Consider babywearing through the airport for hands-free navigation. Most infant flight problems come from one of these being missed, not from anything harder to prepare for.
