Two days in the UK means London, full stop. The country is four nations, England, Scotland, Wales, and Northern Ireland, and London is the capital of all of it, but 48 hours doesn’t stretch to Edinburgh or the Cotswolds without turning half your trip into a train transfer. The real traps here aren’t the sights, they’re the overpriced chain cafes ringing Leicester Square and the tourist tat shops lining Oxford Street.

The United Kingdom is four nations, not one, but three days only gets you to London, and that is the correct call, not a compromise. This itinerary spends two full days on London’s actual icons, then trades day three for a single train trip out of the city rather than an ambitious sprint to Edinburgh you do not have time for. Bring a passport and book your ETA before you fly, budget in pounds sterling (never euros), tap a contactless card on the Tube, pack a rain layer regardless of the forecast, and expect London to be expensive and, pickpockets aside, very safe.

Four days is enough for exactly two bases, not three: two days in London for the icons, then a train north for two more in Edinburgh. That is the honest shape of this trip, and trying to squeeze in Bath or York on top of it turns a good four-day plan into a rushed one. The United Kingdom is four nations, England, Scotland, Wales, and Northern Ireland, and London is only the capital of one of them; Edinburgh is Scotland’s own capital, with its own castle and its own identity, not a regional England outpost.

The United Kingdom is four nations, not one, and five days is enough to see two of them properly if you resist the urge to sprint across all four. This itinerary spends three days on London’s actual icons plus one train day trip, then rides the LNER line north for two days in Edinburgh, Scotland’s own capital, rather than England’s. Bring a passport and book your ETA before you fly, budget in pounds sterling (never euros), tap a contactless card for transport, pack a rain layer regardless of the forecast, book your London-Edinburgh train in advance, and expect the whole trip to be expensive and, pickpockets aside, very safe.

Six days properly links London and Edinburgh by train, with a sixth day left over to push further north into Scotland rather than home. This itinerary spends three days on London’s icons plus one train day trip, two days in Edinburgh, Scotland’s own capital, and a sixth day on a guided run into the Highlands for Glencoe and Loch Ness. Bring a passport and book your ETA before you fly, budget in pounds sterling (never euros), tap contactless everywhere, pack a rain layer regardless of the forecast, book the long train legs and the Highlands tour in advance, and expect the whole trip to be expensive and, pickpockets aside, very safe.

Seven days is enough to actually feel the United Kingdom’s four nations rather than watch London stand in for all of them: three days in the capital, two more riding the LNER line north into Edinburgh, Scotland’s own capital, then two further days pushing into the Highlands before a long train ride home. England, Scotland, Wales, and Northern Ireland are four distinct nations sharing one government, and nobody in Edinburgh or Glencoe is English, so don’t let a stale itinerary tell you otherwise.