Travelling with a baby is entirely doable — it's just that spontaneity now requires planning. The good news: babies are surprisingly portable, don't complain about the itinerary, and travel free or nearly free on most transport.

The trick is that the kit matters less than a handful of safety basics: the same safer-sleep rules apply on holiday as at home, sun protection is non-negotiable, and the car seat rules travel with you. Get those right and everything else is just logistics and snacks.

Start with a day trip or a night away before attempting anything with a boarding pass. It's a gentle dress rehearsal, and you'll find out what you actually use versus what you heroically carried around all day.

The day-trip bag (your training ground)

More nappies than seems reasonable, plus wipes and bags A rough rule: one nappy per hour out, then add two.
A portable changing mat Or a folded muslin over whatever surface fate provides.
A full change of clothes for the baby And a spare top for you. Experienced parents pack the spare top first.
Feeding kit for however you feed See the feeding section below.
Muslins, a blanket, and one small toy
Snacks and water for the grown-ups A hungry parent is a logistical hazard.

Documents for going further afield

A passport for your baby Babies need their own passport — apply well ahead, as it can take several weeks. Helpfully, under-ones are allowed to have their eyes closed in the photo.
GHIC or EHIC cards for travel in Europe Free to get, and your baby needs their own.
Travel insurance that covers the baby Usually free to add to a family policy — but do actually add them.
A vaccine check-in with your GP or practice nurse Well before you go: routine jabs up to date, plus anything extra for your destination.
Your airline's infant rules, read in advance Minimum ages (often around two weeks, sometimes with a doctor's letter for very new babies), baggage allowances for prams and car seats — they vary more than you'd expect.

Feeding on the move

If breastfeeding: nowhere is off limits You're legally protected feeding your baby anywhere in the UK, and it's welcomed on planes — no kit required, which is the ultimate packing hack.
If formula feeding: ready-to-feed cartons Pricier per feed but gloriously simple when travelling — no powder, no faff, no hot water hunt.
Baby milk and food are exempt from the 100ml hand-luggage rule Carry what you need for the journey; expect it to be screened separately at security.
Sterilising bags or cold-water tablets for travel Light, cheap, and work in any hotel sink.
Bibs, muslins and a sealable bag for the aftermath
Feed (or offer a dummy) during take-off and landing Sucking helps tiny ears cope with the pressure change.

Sleep away from home

A travel cot with a firm, flat mattress — or check what's provided The safer-sleep rules come on holiday too: baby on their back, in a clear cot, same room as you. Ring ahead to check the cot the hotel provides is sound.
Familiar sheets and their usual sleeping bag Home smells are surprisingly persuasive at bedtime.
Something for blackout A travel blackout blind, or the time-honoured towel over the curtain rail.
Don't let the car seat become the bed Car seats are for travel, not routine sleep. When you arrive, move a sleeping baby to a flat surface — yes, even though it risks waking them. We know. We're sorry.
Keep the routine loose Holiday naps happen in prams and slings, and that's fine. Aim for familiar, not identical.

Cars and planes

A correctly fitted rear-facing car seat UK law requires a proper child seat until 12 years or 135cm, and babies stay rear-facing until at least 15 months in i-Size seats. Never put a rear-facing seat in front of an active airbag.
Check the car seat situation at your destination Hiring a car abroad? Book the seat ahead or bring your own — taxis and transfers often have nothing suitable.
On long drives, stop every couple of hours A feed, a change and a stretch out of the seat — long unbroken stints in a car seat aren't good for little ones.
Never leave your baby alone in the car Not even for two minutes; cars heat up frighteningly fast.
On planes: book the bassinet row early if you'd like one Under-twos usually fly on your lap with an infant seatbelt; some airlines let you buy a seat and use an approved car seat instead.
A full change of clothes in hand luggage — for baby and for you Turbulence and nappies are old friends.

First aid, sun and heat

Infant paracetamol or ibuprofen suspension Age-appropriate, with the dosing syringe — check the pack for your baby's age and never exceed the stated dose.
A digital thermometer
Oral rehydration sachets Ask your pharmacist which are suitable for babies.
Plasters, barrier cream, saline drops, and any regular medicines
Keep babies under six months out of direct sunlight entirely NHS advice is firm on this — shade, cover, and a wide-brimmed hat are their sunscreen.
For babies over six months: SPF 30+ with 4-star UVA, hat, shade in the middle of the day Reapply often, and keep them out of the sun between 11am and 3pm.
In the heat: extra feeds and a cool room for sleep Babies can't tell you they're thirsty, but they will tell you loudly about everything else.

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