Yes, you can absolutely take luggage on the London Underground (the Tube), and it is a common sight for travelers heading to and from major hubs like Heathrow, Victoria, and King's Cross. However, there are no dedicated luggage racks on standard Tube carriages, so you must keep your bags with you at all times, ensuring they do not block the doors or aisles. In 2026, the Elizabeth Line remains the most "luggage-friendly" option, as its newer trains feature more floor space and level boarding at many central stations. If you have heavy bags, it is vital to check the "Step-Free Access" map on the TfL (Transport for London) Go app, as many older stations still require navigating steep stairs or narrow escalators. Avoid traveling with large suitcases during the "Rush Hour" peaks (roughly 07:30–09:30 and 17:00–19:00), as the trains become incredibly crowded, making it physically difficult to board with luggage. For a smoother journey, try to use the end carriages of the train, which often have slightly more standing room for passengers with bags.