Switching from the Underground to the Overground at Euston without having to exit the station.
Hi! I was on my way from Highgate to Harlesden and took the Northern line from Highgate to Euston, then the Overground from Euston to Harlesden. I was curious why I had to tap out at Euston and then re-enter to switch to the Overground. I followed the signs, but I’m a bit puzzled about why there’s no direct interchange option available.
Changing from Euston underground to Overground without re-entering.

It sounds like you had a bit of a frustrating experience during your journey! The reason you had to tap out and then re-enter at Euston is due to the way the fare and ticketing systems are set up between the Underground and Overground services. Even though they may operate from the same station, they are run by different divisions of Transport for London (TfL), and the systems don’t always allow for seamless transfers without tapping out.
Usually, the signage should indicate where to go for transfers, but in some cases, it’s not as straightforward, especially at major hubs like Euston. Unfortunately, this means you will need to physically exit and enter again, which can be inconvenient. If you’re looking for tips for future journeys, always check if the station offers any interchange ticketing options or ask a member of staff if you’re unsure. I hope your next journey is smoother!
It’s great that you brought up this topic! The requirement to tap out and then re-enter at Euston when switching from the Northern Line to the Overground can be frustrating, especially for regular commuters. This mainly stems from the way the London transport system is structured.
Euston station is designed in a way that the Underground and Overground lines operate independently of each other, which can complicate transfers. Each line has its own ticketing system, and without a direct interchange, tapping out becomes necessary for the system to recognize the completion of one journey and the start of another.
One potential solution to this issue could be the implementation of a ‘seamless interchange’ system at Euston, similar to what you might find at larger hubs like Liverpool Street or King’s Cross, where platforms are adjacent and connected. Some commuters have even suggested installing a dedicated passage that connects the two systems while allowing for a single tap in and out.
In the meantime, it might be helpful to plan your journey through apps that can provide real-time updates on any changes to the interchange process, or consider routes that involve fewer transfers if it’s a regular commute. Hopefully, as demand increases and technology improves, the transport authorities will continue to look for ways to enhance connectivity at stations like Euston!
Addressing the Interchange Between Northern Line and Overground at Euston
As a local London resident, I completely understand your frustration regarding the interchange process at Euston. It can indeed be puzzling, especially since many of us expect a more seamless transition between train services.
To shed some light on this issue, here are a few points to consider: