What Do I Need to Go to London

Planning a London trip with a baby or toddler gets much easier when you split your checklist in two: documents you need to enter the UK and items that make family travel more comfortable. Your passport and travel permission come first. Raincoats, snacks, chargers, and flexible shoes come next.

The documents you may need to enter London

Every traveler in your group, including a baby or toddler, needs the travel documents that apply to their nationality and trip.

Start with this short entry checklist:

• A passport for each traveler
• An Electronic Travel Authorisation (ETA) if the traveler’s nationality and trip require one
• A UK visa if the traveler’s situation calls for it

The exact rules depend on your nationality, why you’re visiting, and how long you plan to stay. A family holiday and a longer stay may not follow the same rules.

Your passport

Your passport must be valid for the entire length of your stay in the UK. Check the passport for every person in the family, not just the adults. Babies and toddlers need their own travel documents too.

Don’t wait until the night before you leave. Check the dates while you’re still planning the trip. If a child’s passport is close to expiring, deal with that before applying for any other travel permission.

Keep passports where you can reach them quickly during the journey. A small document wallet can help, but don’t put every important document in one checked bag.

Your travel permission

Some travelers need an Electronic Travel Authorisation, usually called an ETA. It’s electronic permission to travel to the UK. It is different from a passport and different from a visa.

The ETA requirement depends on the traveler’s nationality and the reason for the trip. If someone in your family has a different passport from the rest of the group, check their rules separately.

A good family habit is to keep a simple note with:

• Each traveler’s full name
• Passport number
• Passport expiration date
• Any ETA or visa details
• The date the permission was approved

Use the official UK or government travel pages to check the current rules before you leave. Entry requirements can change.

What U.S. citizens need for a London trip

If you’re asking what do I need to go to London from USA, the basic checklist for a U.S. tourist visiting for six months or less is straightforward:

• A valid U.S. passport
• An Electronic Travel Authorisation before travel
• Any other permission required for your specific situation

The passport must remain valid for the whole time you’re in the UK. This applies to adults and children.

For a family traveling from the United States, check each passport one by one. It’s easy to check the parents’ documents and forget that a child’s passport has a different expiration date.

The ETA requirement applies to U.S. citizens traveling to the UK for tourism for six months or less. Apply before travel and make sure the permission is connected to the passport you’ll use for the trip.

If your plans involve something other than a short tourist visit, don’t assume the same rule applies. A different length of stay, purpose of travel, or nationality may mean you need another type of permission.

That answers the common question, “Do I need a visa to travel to the UK from USA?” For a U.S. tourist visiting for six months or less, the key requirement is an ETA rather than a standard tourist visa. Still, check the current official guidance if your trip doesn’t fit that description.

Passport validity, ETA, and when a visa may apply

Think of UK entry permission as a three-part check:

1. Who are you traveling as? Your nationality and passport matter.
2. Why are you going? Tourism may have different rules from other types of travel.
3. How long will you stay? A short visit may have different requirements from a longer one.

Your passport is the starting point. It must cover your full stay. After that, check whether your nationality requires an ETA.

A visa may apply in other situations. That can depend on nationality, the purpose of the visit, and the planned length of stay. Don’t use another traveler’s checklist as your own, even if you’re flying on the same plane.

Before departure, confirm:

• Your passport is valid for the full stay.
• Your ETA has been approved if you need one.
• Your travel permission is linked to the passport you will carry.
• You’ve checked whether your planned visit needs a visa.
• You’ve reviewed the latest official UK entry guidance.

For parents, this is the part to finish first. Packing can be adjusted later. A missing document can stop the trip before it starts.

A London packing checklist for adults and children

Once the entry documents are sorted, move on to the comfort checklist. London days often include walking, public transport, indoor attractions, and changing weather. Pack for layers instead of one heavy outfit.

Clothes and weather items

For each traveler, consider:

• T-shirts or light tops
• A warm layer, such as a sweater or fleece
• Comfortable trousers or leggings
• Sleepwear
• Socks and underwear
• Comfortable walking shoes
• A raincoat
• A small bag for spare clothes

A raincoat is usually more useful for a family day out than relying on one large umbrella. It leaves your hands free for a child, stroller, snacks, or a phone.

Layers also make life easier with young children. You can remove a warm layer indoors and add it again outside without changing the whole outfit.

Bags and chargers

A small day bag should hold the things you need between leaving your accommodation and returning later. Depending on your child, that may include:

• Diapers or pull-ups
• Wipes
• A change of clothes
• Snacks
• A drink
• A light layer
• Any comfort item your child relies on
• Your phone and wallet

Bring the chargers you need for your phones and other devices. A low battery is especially awkward when you’re checking directions, contacting your travel group, or managing tickets.

Keep the day bag light enough to carry comfortably. It’s tempting to pack every possible item for a toddler, but an overloaded bag slows you down and becomes difficult to manage on busy days.

Keep the required items separate

Your passports and travel permissions should be easy to reach. They don’t belong buried beneath spare clothes and snacks.

Use one small document section for:

• Passports
• ETA details
• Visa details, if they apply
• Important booking information

Then use the rest of the bag for everyday family supplies. This simple split helps you see what is legally required and what is merely useful.

What to pack for a baby or toddler

Babies and toddlers can need several outfit changes in one day, especially during meals or long journeys. You don’t need to pack the whole nursery, but you do need a small backup plan.

For a day out, start with:

• Enough diapers for the time you’ll be away
• Wipes
• One or two spare outfits
• A bib
• A light jacket or warm layer
• Snacks that your child already knows
• A drink
• A familiar comfort item
• A small bag for dirty clothing

Choose clothes that are easy to remove and put back on. Simple layers are useful when you move between cool streets and heated indoor spaces.

If your child still naps, think about what helps them settle while you’re out. A familiar blanket or small comfort item may be more useful than extra toys. Bring only what you can carry without making the day bag too heavy.

Parents often focus on what the child will wear and forget their own basics. Add a spare adult top if your toddler is likely to spill food or drink. It takes little space and can save you from spending the afternoon uncomfortable.

The items below are packing choices, not UK entry requirements:

• Diapers
• Stroller supplies
• Snacks
• Extra clothes
• Toys
• Baby wipes
• Comfort items
• Child-friendly shoes

Your child’s passport and required travel permission are the entry documents. Keep that distinction clear.

Choosing practical footwear for walking days

London sightseeing can mean long stretches on foot, even when part of the day is spent in a stroller. Adults need shoes they can walk in comfortably. Toddlers need footwear that suits what they’ll actually be doing.

For a child who is walking, look for shoes that are:

• Flexible rather than stiff
• Comfortable from the first wear
• Easy to put on and remove
• Secure enough for short walks
• Suitable for the weather and surfaces you expect

For a baby who spends most of the day in a stroller, soft footwear or sock shoes may be more practical than a firm outdoor shoe. They can keep little feet covered without adding a heavy, rigid sole.

Avoid saving brand-new shoes for the airport or the first full day of sightseeing. Let your child wear them for short periods at home first. That gives you time to spot rubbing, slipping, or a poor fit.

Footwear is useful travel planning, but it isn’t part of the UK entry checklist. A child can have the right passport and ETA while wearing any comfortable outfit. Handle the documents first, then choose shoes that make the day easier.

Parents can review Baby Sock Shoe’s guidance on sizing and choosing comfortable first-trip footwear for babies and toddlers before packing a pair.

What to prepare for a day trip versus a week

A one-day outing and a week in London need different levels of preparation.

For one day out

Pack only what you’ll need until you return:

• Passports only if your plans make them necessary to carry
• A light raincoat or warm layer
• Comfortable shoes
• Diapers and wipes
• Spare toddler clothes
• Snacks and a drink
• Phone and charger
• A small day bag

The goal is to stay ready without carrying your entire luggage through the city.

For a week

A week-long stay calls for a wider clothing plan:

• Several everyday outfits
• Enough underwear and socks
• Sleepwear
• More than one warm layer
• A raincoat
• Comfortable walking shoes
• Baby or toddler clothing with several spare changes
• Chargers
• Bags for separating clean and dirty clothes

You can repeat layers and outfits. There’s no need to pack one completely different outfit for every day if you can wash or reuse items.

Before leaving home, make one document check and one bag check. The document check covers passports and travel permission. The bag check covers clothing, weather gear, chargers, and child supplies.

Questions to check before you travel

What documents do I need to visit London?

You need a passport that stays valid for your entire UK visit. Depending on your nationality and the reason for your trip, you may also need an ETA or a visa.

What do I need to enter London if I’m a U.S. citizen?

For tourism lasting six months or less, U.S. citizens need an ETA before traveling to the UK. They also need a passport valid for the whole stay.

What do I need to get into London from the USA?

For a U.S. tourist, the key items are a valid passport and an approved ETA for a visit of six months or less. Different travel plans may require different permission, so check the current rules before departure.

Is $1,000 enough for a week in London?

There isn’t enough information here to say. It depends on accommodation, transport, food, activities, and whether you’re traveling alone or with children. Work out those costs separately from your entry-document checklist.

Do babies and toddlers need their own documents?

Check each child’s passport and travel permission separately. Don’t assume a child is covered by a parent’s documents. Their passport must also remain valid for the full stay, and any required ETA or other permission should be checked for that child.

Give yourself time to review the official UK or government travel pages before the trip. Then pack around your real family routine: layers, comfortable footwear, a raincoat, chargers, and a day bag that holds the essentials without becoming a burden.