To get to Notting Hill Carnival in 2025, the easiest and most common way is by public transport in London:

• The closest Tube stations within walking distance are Queensway, Notting Hill Gate, and Holland Park on the Central line, as well as Westbourne Park, Ladbroke Grove, and Latimer Road on the Circle and Hammersmith & City lines. However, some of these stations may be closed or exit-only during the busy carnival weekend due to overcrowding, so plan accordingly.
• Paddington Station is a good arrival point, and from there, you can walk about 20 minutes to Notting Hill Carnival.
• Bus routes serving the area include lines 7, 18, 23, 27, 28, 31, 36, 52, 70, 94, 148, 228, 295, 316, 328, 390, and 452, but expect diversions or early terminations as roads around the carnival are pedestrianized.
• Due to the large crowds, roads will be closed and transport will be heavily congested, so it is advised to check Transport for London (TfL) updates closer to the day.
• Walking to the event from nearby stations or areas can also be a pleasant way to get into the carnival vibe early.

In summary, for the safest and most convenient travel to Notting Hill Carnival, take the Tube to Paddington or any of the listed stations and walk to the carnival area within Notting Hill, Ladbroke Grove, Westbourne Grove, and Westbourne Park, being mindful of possible station closures and diversions.