The overground are more traditional trains as opposed to the metro style for the Underground. Overground is more of a ring around central London - it's useful for avoiding going via central London if you don't want to.

No, the London Overground and the London Underground (the Tube) are two distinct components of London's transport network, though both are managed by Transport for London (TfL). The primary difference is the infrastructure and geography: the Underground consists of 11 deep-level and sub-surface lines that primarily serve central London, whereas the Overground is a suburban rail network that connects the outer boroughs, often following circular routes around the city. Visually, the Underground uses the iconic red roundel and solid-colored lines on the map, while the Overground is represented by an orange roundel and orange-bordered lines. In 2026, the Overground has become even more distinct following a major rebranding where its six main routes were given unique names and colors (such as the "Lioness," "Suffragette," and "Windrush" lines) to help passengers navigate the once-confusing "orange tangle." While you can use the same Oyster or contactless payment for both, and they often share stations, the Overground uses full-sized National Rail-style trains that run on tracks above ground, offering a different commute experience compared to the traditional subterranean Tube.