Perfect 4-Day London Itinerary (2026 Guide)

Quick answer: This 4-day London itinerary covers the must-see highlights without rushing, with detailed day-by-day plans, restaurant recommendations, and budget guidance.

Best for: first-time visitors who want royal landmarks, world-class free museums, market food and a West End show at a brisk but manageable pace.

Day 1 — Westminster & Royal London

Start where the postcards live. Walk down Whitehall from Trafalgar Square, past the mounted Horse Guards, to Westminster, where Big Ben crowns the Houses of Parliament. Book Westminster Abbey online for a 9.30am slot (adult from roughly £27–31, about $35–40); the coronation church holds royal tombs and Poets’ Corner, and arriving at opening beats the tour-bus crush. Stroll through St James’s Park — the pelicans have lived here since the 1660s — to Buckingham Palace; the Changing the Guard runs several mornings weekly, so check the official schedule the night before. Afternoon: cut up to Trafalgar Square and step into the National Gallery (free), lingering over Van Gogh’s Sunflowers and Turner’s seascapes. Planning note: skip the tourist-trap pubs and grab a proper meal near Covent Garden instead. Get around on contactless — tap in and out; the daily cap keeps costs low.

Day 2 — The City & Tower

Devote the morning to the Tower of London (adult around £37, roughly $47—book the earliest online slot to reach the Crown Jewels before the queues form). A Yeoman Warder tour, included with entry, is the sharpest hour in London for stories of ravens and traitors. Walk out onto Tower Bridge — the glass-floored high-level walkway is a separate, cheaper ticket — then cross to the South Bank. Wander through the reconstructed Shakespeare’s Globe and the free Tate Modern inside the former Bankside power station; ride the escalator to the Blavatnik viewing terrace for a skyline sweep. Cross the Millennium Bridge for the classic sightline straight to St Paul’s dome. Planning note: instead of a pricey riverside chain, queue at a Borough-adjacent stall for a salt-beef bagel or a proper flat white. Evening river walk back along the Thames is free and gorgeous at dusk.

Day 3 — Museums & Markets

Go deep on London’s free cultural heavyweights. Open your morning at the British Museum in Bloomsbury (free entry; the Great Court glass roof is worth the photo) — the Rosetta Stone and Parthenon sculptures reward an early, unhurried visit before school groups arrive around 10.30am. Walk south through literary Bloomsbury to Covent Garden, where street performers work the piazza and the covered Apple Market sells crafts. For lunch, head to Borough Market near London Bridge (full market Wednesday to Sunday, roughly 10am–5pm) — graze on a grilled-cheese toastie, a chorizo roll, or fresh oysters, budgeting about £10–15 (around $13–19) to eat well. Afternoon: browse Neal’s Yard‘s hidden courtyard of painted facades. Planning note: Borough is packed on Saturdays — a Thursday visit gives the same traders with breathing room. The Elizabeth line and Northern line stitch these stops together fast.

Day 4 — Greenwich & East End

Ride an Uber Boat by Thames Clippers — the river bus — downstream to Greenwich (about £10–12, roughly $13–15 one way, contactless accepted), the finest arrival in London. Straddle east and west hemispheres at the Royal Observatory Prime Meridian, tour the free National Maritime Museum, and climb through Greenwich Park for the postcard view over Canary Wharf. Explore the Cutty Sark tea clipper and browse Greenwich Market’s food stalls for lunch. Afternoon: take the DLR back and switch to the Overground for Shoreditch and Brick Lane in the East End — street art around Redchurch Street, vintage shops, and the city’s best curry houses and salt-beef beigels (the 24-hour bagel shop is a local institution, a bagel about £3–5). Planning note: Sunday brings the sprawling Brick Lane and Columbia Road flower markets to life — time your last day for it if you can.