For years the standard advice for a first trip to London was to buy an Oyster card at the airport or a station. That advice no longer fits most visitors, and knowing why saves both money and a queue on arrival day. This guide explains how London’s tap-based fares work, when a Visitor Oyster card still makes sense, and the single habit that prevents the most common overcharge.
Contactless now matches Oyster
According to the official Visit London guidance, a contactless bank card or phone gives the same fares as an Oyster card, along with the same daily and weekly fare caps. The difference is what you avoid. There is no Oyster deposit, no need to top up in advance, and no leftover balance to remember to reclaim at the end of the trip.
If your card or phone already supports contactless payment, which most modern ones do, you can use it on London’s transport network from the moment you land. There is nothing to buy and no setup step. For most visitors that makes contactless the simplest default.
When a Visitor Oyster card still makes sense
Oyster has not become useless. It still fits a few situations:
- You have no contactless card or phone. A prepaid transport card gives you a way to tap in without one.
- Your card issuer charges foreign transaction fees. Repeated small taps can add up on some cards, so check your own card terms before you rely on it. Our guide to cards, cash and currency abroad explains what to look for.
- You want a separate transport budget. Some travellers prefer to keep transport spending apart from their main card. That is a budgeting choice, not a fare advantage, because the rates are identical either way.
How the tap system works
Whichever method you choose, the mechanic is the same. Touch your card, phone or Oyster to the yellow reader at the start of the journey, and touch it again at the end. This applies on the Tube, the Docklands Light Railway, the London Overground and most National Rail services inside the fare zone system.
Buses and trams work differently. You tap in only, with no need to tap out, because a bus fare does not depend on how far you ride the way a rail fare does. A simple rule helps: on rail, tap twice; on a bus, tap once.
Use the same card or device every time
Fare caps are calculated per card or device. If you tap with your physical card on Monday and your phone wallet on Tuesday, the system sees two separate travellers and cannot combine your journeys into one daily total. Pick one payment method for the whole stay. If you carry both a card and the same card loaded into a phone wallet, treat them as different tokens and use only one.
The same logic applies to travelling as a group. Each person needs their own card or device to tap, since one card cannot be used for two people at the same gate.
The mistake that actually costs money
The most common fare error is not choosing the wrong payment method. It is forgetting to tap out on a service that requires it. If you do not tap out at the end of a Tube, DLR, Overground or National Rail journey, the system typically charges a maximum fare. It assumes you travelled to the furthest possible point on the network rather than the station where you actually got off.
This is a real and avoidable cost with a single fix. Treat tapping out as automatic as tapping in, every time, on every mode that needs it. Watch the reader at the exit gate for confirmation before you walk on, particularly at busy stations where it is easy to follow the crowd through an open gate without touching in. And remember that buses are the exception where a second tap is not needed.
A simple plan for your first day
- Check that your card or phone supports contactless, and that your card does not add heavy foreign fees.
- Choose one card or device and use it for every journey.
- Tap in and out on rail, and tap in only on buses and trams.
- Confirm the current fares and caps on the official Transport for London and Visit London pages before you travel.
What this guide does not cover
We are not quoting fare amounts or daily and weekly caps in pounds. These are reviewed and adjusted periodically, and a number printed here would go out of date quickly. What stays stable is the logic: most visitors do not need an Oyster card if their card supports contactless, and consistent tapping out prevents the most common overcharge.
Where to go next
Where you stay shapes how much you use the network. Our London travel guide compares the main neighbourhoods and what each is best for, and our guide to planning a three-day city itinerary helps you group sights so you spend less time on trains. London is not the only city that has moved to contactless-first fares. Our New York City travel guide covers the neighbourhoods behind New York’s OMNY system. For how we check our sources, see how we verify.
Source: Visit London official guidance on contactless payment and Oyster cards.