Trip readiness checklist for United Kingdom
London, the Highlands, or a countryside pub crawl — the UK asks for one thing: a waterproof you don't mind living in.
Build my checklistEntry rules for a US passport
Visa-free up to 6 months
Up to 6 months per visit as a visitor.
- UK Electronic Travel Authorisation (ETA): apply in the UK ETA app before you travel — required for US passport holders since January 2025, usually approved within a day, valid for two years of visits
- US passport valid for your whole stay (six months' validity is the safe habit; some airlines enforce it at check-in even where the country doesn't)
- Proof of onward or return travel — a booking on your phone is enough
- Where you're staying and how you're funding the trip, if asked at the eGates or desk
Source: U.S. Department of State, checked September 14, 2026. Other passports get their own answer in the app. Confirm at the official source before you book.
What to pack
The UK has four seasons, often in one afternoon. Pack layers and a waterproof you don't mind living in, and you'll out-stoic the locals.
A proper waterproof jacket
Rain is less monsoon, more persistent drizzle that arrives without warning. A packable shell beats an umbrella in the wind.
Layers you can peel
Heated pubs, chilly streets, and changeable skies mean you'll add and shed layers all day.
Comfortable walking shoes
Cities are walkable and old; pavements are uneven and often wet.
A Type-G plug adapter
The UK uses the chunky three-pin plug at 230V.
When to go
Summer (Jun–Aug) brings the best weather and the biggest crowds and prices, especially in London and Edinburgh (mind the August festival). Spring and early autumn are calmer, cheaper, and still pleasant — pack for rain either way.
Money & getting around
The UK uses the pound (£), not the euro. Cards and contactless rule — you can tap straight onto London buses and the Tube with your card or phone. Tipping is modest: around 10–12.5% in restaurants if service isn't already added.
Local quirks worth knowing
The UK is easygoing about almost everything, with one exception it takes deadly seriously: the queue.
The queue is sacred
Whatever it's for, join the back of it. Jumping it is the one genuinely unforgivable act.
Stand on the right
On escalators — especially the London Underground. The left side is for people walking, and they're in a hurry.
Order at the bar
Most pubs have no table service: order and pay at the bar. If someone buys a round, buying the next one is strongly implied.
'You alright?' is a greeting
Not a health inquiry. 'Good, you?' is the entire expected answer.
A week in United Kingdom, the list starts here
Quantities scale with your dates, the weather groups arrive once we have your travel days, and your own plans add their gear on Trip Pass.
- Passport & travel documents1
- Phone charger & adapter1
- Wallet, cards & some local cash1
- Toiletries bag1
- Any daily medicationsenough for the trip
- Underwear7
- Socks7
- T-shirts / tops5
What am I forgetting?
A real answer from Trip Happens for a sample week in United Kingdom, departing in five weeks with a checked bag and nothing packed yet. Yours is built from your own trip.
Five weeks out, a week in London. Three gaps.
- 1.
The UK ETA, applied for early
Your entry guide says US passport holders have needed an Electronic Travel Authorisation since January 2025, applied for in the UK ETA app and usually approved within a day. Thirty-five days is plenty of room, so do it now rather than the night before.
- 2.
A waterproof you'll live in
Late October in Britain means four seasons per afternoon, and your packing list currently has comfortable everyday shoes but no rain layer. Add a waterproof shell and shoes you don't mind getting soaked.
- 3.
One day's kit in your carry-on
You've got a checked bag on a seven-night trip, which is fine until the bag takes a longer route than you do. Keep meds, chargers, and a change of clothes on your person.
Entry, advisories & health
These change. Confirm at the official source before you book.
Entry and visa requirements depend on your nationality. Confirm the current rules for United Kingdom with the official source below before you book.
U.S. State Department travel advisory for United Kingdom — check the current level and any alerts before you go.
CDC traveler health page for United Kingdom — recommended vaccines, health notices, and a packing checklist.
Get the full United Kingdom checklist
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