London is one of the easiest cities in the world to move through — once you know the three rules that keep visitors from burning £20 a day. This is the hub: fares that are actually current for 2026, the airport maths, Tube etiquette, and the honest "is the pass worth it" call. Read this before you tap anything.
They charge identical fares. The only question is whether your own bank card is the right tool, or whether a disposable Oyster saves you money through a fee you'd otherwise eat.
For the vast majority of visitors, contactless wins on convenience: tap your phone or any contactless debit/credit card and you get the exact same fares as an Oyster, including the daily and weekly caps, with zero card to buy or top up. A single Zone 1 journey is £2.90. The daily cap in Zones 1-2 is about £8.90, and the Monday-to-Sunday weekly cap is about £44.70 — both frozen at these levels until at least March 2027. You never need to "buy a day ticket"; the cap applies automatically once you pass the threshold.
So when would you bother with an Oyster? Two cases. First, if your home bank adds a foreign-transaction fee on every tap, a £7 Visitor Oyster quickly pays for itself versus daily surcharges — buy it before you fly or at the airport. Second, if your bank is twitchy about overseas transport taps and blocks them, a pre-loaded Oyster removes the gamble. For most US, EU and Asian contactless cards with no FX fee, just use your own card.
Always tap in AND tap out — at the start and end of every rail journey, including the Overground and Elizabeth line. Forget to tap out and the system charges you the maximum possible fare for the whole route, not the journey you took. On buses you only tap in. On the Tube there are pink "route validator" readers at interchange stations if you take a slower route to avoid Zone 1 — tap those too, or you pay the Zone 1 premium.
| Option | Best for | Gotcha |
|---|---|---|
| Contactless (your card/phone) | Most visitors, no FX fee | Foreign-transaction fees if your bank charges them |
| Visitor Oyster (£7 card) | Cards with FX fees or blocked overseas taps | £7 one-off; fares identical to contactless |
| Paper / paper day ticket | Nobody | More expensive than the cap; obsolete for most trips |
This is the mistake that drains a travel budget on hour one. Heathrow sits on the TfL rail network; the other four do not, and pretending otherwise leads to buying the wrong ticket.
Heathrow (LHR) is the only major airport on the city fare system, and the Elizabeth line is the move: about £12-15 to the West End or the City, every 10 minutes, with real space for luggage. The Heathrow Express shaves the time to 15 minutes but costs about £25 — only worth it when every minute is money. The Tube (Piccadilly line) is cheapest at around £5.60 off-peak but slow and brutal with suitcases.
Gatwick, Stansted and Luton are not on the TfL network, so your Oyster and contactless caps do not apply — buy a dedicated train ticket. Gatwick has the fast Gatwick Express (~£20, 30 min) or slower Southern/Thameslink trains for less; Stansted is dominated by the Stansted Express (~£20, 45-50 min); Luton needs a shuttle to Luton Airport Parkway then a train. Don't tap your contactless card expecting a Tube fare at these three — you'll be buying a separate rail ticket regardless. London City (LCY) is small, closest to central, and on the DLR/Elizabeth line for a normal contactless fare.
If your flight lands at Gatwick, Stansted or Luton, budget a separate £15-25 train ticket into town and book it ahead. Only Heathrow and City ride on your standard contactless cap.
None of this is enforced, but all of it is noticed. Get these right and you'll move through the city like you've done it before.
Stand on the right, walk on the left on escalators — it's the single most enforced unwritten rule in London, and standing left while someone barrels past you is the fastest way to earn a sigh. On the platform, step off the train first, then let people off, then board; don't block the doors.
Avoid the rush hours if your plans are flexible. The genuinely unpleasant windows are 07:30-09:30 and 17:00-19:00 on weekdays — trains are packed to the point of no phone signal and no personal space. If you can shift a museum visit or a market trip to a mid-morning or early-afternoon slot, you'll have the city to yourself. Note the second peak bleeds later on Fridays.
After midnight on Friday and Saturday, the Tube runs a 24-hour service on several lines (Victoria, Central, Jubilee, Northern, Piccadilly and others) — but not every line, and not every night. If you're out late on a weekday or a line without Night Tube, your realistic option is a black cab (legitimate, metered, £3.20+hailing flagfall, or the Bolt/Uber apps) rather than a night bus, which is cheap but slow and less comfortable with a group.
Passes are marketed hard because they convert well. They pay off for a specific traveller and lose money for everyone else — here's the line.
The London attraction passes (the all-in London Pass, or Merlin's Magical London covering the London Eye, SEA LIFE, Madame Tussauds, the Dungeon and Shrek's Adventure) are worth it only if you'll do three or more paid attractions across two to three days. At that density the bundled price undercuts buying separately. They are not worth it for a two-day whistle-stop of free museums plus one paid sight — you'll pay for attractions you never reach.
The trap is the free museums. The British Museum, Natural History Museum, V&A, Tate Modern, National Gallery and Science Museum are all free and brilliant — but they do not count toward any pass maths, so don't let "we'll do five museums" make a pass look like a bargain. Count only the paid entries. If your list is "Tower of London + Westminster Abbey + a Thames cruise + London Eye" over three days, a pass likely saves you; if it's "British Museum + walk past Big Ben + Borough Market," skip it and use your contactless cap.
Five Merlin attractions (London Eye, SEA LIFE, Madame Tussauds, Dungeon, Shrek's Adventure) on one pass. The maths works if you'll hit three-plus in 2-3 days.
The open-top loop with a river cruise extra. Good on day one to get your bearings and a lazy alternative to the Tube with kids or luggage.
There's no "wrong" time; there's a time that matches your priorities on weather, price and crowds.
Late May through September is the comfortable window: long daylight (light past 9pm in June), mild temperatures, and the outdoor sights — parks, the South Bank, open-top buses, Thames paths — at their best. The trade-off is real: July and August are the most expensive and most crowded months of the year, with school holidays pushing hotel rates to their peak and major attractions running at capacity. If you can travel in late May, June or September, you get nearly the same weather with noticeably softer prices and queues.
October to March is London's cheap season. Hotel rates drop, attractions are quiet, and the city does winter well — Christmas markets, West End shows with availability, and empty museums. The cost is weather and light: short days (dark by 4pm in December), frequent rain, and the occasional cold snap. Pack for wet and dark and you'll have the place largely to yourself at a fraction of summer's price.
These are per-person daily totals including accommodation, which is by far the biggest swing. Food and transport are cheap; the bed is what moves the number.
At a budget level, about £120/day: a hostel dorm or the cheapest chain hotel room, contactless caps for transport, supermarket and market food, and mostly free museums with one paid sight. At mid-range, about £220/day: a central 3-star or decent Airbnb, a couple of paid attractions or a West End show, and a sit-down meal or two. At luxury, £450+/day: a West End or Mayfair hotel, fine dining, taxis over the Tube, and the premium experiences (the Shard, a Thames dinner cruise, Abbey Road-style private tours).
The single biggest lever is the room. Two people sharing a mid-range hotel split the accommodation, so a couple can often travel at the low end of mid-range. The cheapest genuine saving most visitors miss: eat lunch at the market, not dinner at the restaurant — Borough Market or a pub roast at lunch costs half of the same kitchen's evening menu.
Three practical questions every first-timer asks, answered without hand-wringing.
Safety: central London is safe for tourists by any global standard — the real risks are pickpockets in crowded tourist spots (Oxford Street, the Tube at rush hour, the big markets) and phone snatches from people on mopeds near major junctions. Keep your phone in a pocket, not a back jeans pocket, and you're fine. Late at night, licensed black cabs and the apps are the safe choice over unlicensed minicabs touted on the street.
eSIM / data: get one. Contactless payment, live Tube routing and restaurant menus all assume you're online, and free WiFi disappears the moment you go Underground. An eSIM (Airalo, Holafly, or your home carrier's travel plan) is cheaper than daily roaming and avoids the airport SIM-kiosk markup. Set it up before you land.
Tipping culture is softer than the US but not zero. In pubs there's the "round" — if you're drinking with a group, you buy a turn for everyone, and nobody tips the bartender. In restaurants, a 10-12.5% service charge is usually already added to the bill (check before tipping again); if it isn't, 10-12% is right. Black cabs — round up to the nearest pound or so, never expected but appreciated. Hotel porters and housekeeping are optional; a couple of pounds for a bag or a few at the end of a stay if service was good.
Use contactless, tap in and out, treat Heathrow/City as the only "normal fare" airports, and do the pass maths before buying. Then jump to the FAQ for the specific questions — or to Itineraries to turn this into a plan.