The first time we landed in London, we genuinely weren't sure how many days would be enough. We'd booked five and assumed we'd have time to spare. Spoiler: we came up short on some things and completely overdid others.
There's no universal magic number. It depends on what you actually want to see, and whether your teenagers lean more towards museums or football stadiums.
Quick answer: for a first visit with teenagers, 5 full days is the sweet spot. Three days covers the essentials. Seven days gives you the full experience without anyone burning out.
| Recommended days | 5 days (minimum 3, ideal 7 for a first visit) |
| Best time to go | April–May or September–October |
| Currency | British pound (GBP). A no-fee card is essential. |
| Getting around | Tube + DLR + buses. Oyster or contactless card. |
The question is a bit of a trap. London isn't a city you "finish." There are neighbourhoods that can swallow a whole day, free museums you could spend a week in, and football stadiums that mattered more to our son than the Houses of Parliament.
Coler (15): walking from the centre all the way to the Tottenham stadium. We ended up in a fan pub, chatting with locals who didn't expect to run into a Spanish family. That moment isn't in any guidebook — and it's the one he still remembers best.
His sister: Covent Garden at dusk, the street performers, and Borough Market. She ate five things from five different stalls without the whole family having to agree on one place.
The honest bit: on day 3 the two of them wanted completely different things. Splitting up in London with teenagers is perfectly doable — nobody has to compromise on everything.
With 3 days you'll see the essentials. With 5, there's room for Harry Potter or Greenwich. With 7, it's the full experience. We'd recommend 5 to 7 days for a first visit with teenagers.
Technically yes, but it only really makes sense as a quick stop between other destinations. For a first visit with teenagers, we wouldn't recommend it.
3–4 days at a slower pace. The Natural History Museum and the Science Museum are free and perfect for under-8s.
Spring (April–May) or autumn (September–October). July–August: prices spike. Christmas: gorgeous decorations, genuinely cold.
Looking for tours and tickets in London?
Book ahead at the same price as the box office.