You can visit Westminster Abbey for free only if you are attending a religious service or visiting for individual prayer. Sightseeing is strictly prohibited during these times; you won't be allowed to tour the royal tombs, Poets' Corner, or the Lady Chapel. Popular services like Evensong (usually late afternoon) allow you to experience the Abbey's incredible acoustics and architecture from a seat for free. For a traditional tourist visit in 2026, adult tickets are approximately £31. Children aged 5 and under are always admitted for free. If you have a valid "London Pass," entry is included at no extra cost. To ensure entry for sightseeing, it is highly recommended to book a timed slot at least two weeks in advance, as the Abbey often closes for special royal or state events.