This question already has an answer here:

Does a Canadian passport holder need a transit visa for a London transit when traveling from Nigeria to Toronto, Canada?

marked as duplicate by Michael Hampton, drat, Mark Mayo, SpaceDog, Karlson Dec 23 '15 at 4:41

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • The other question has almost nothing in common with this one and is therefore not a duplicate. – Relaxed Jul 13 '14 at 0:05

If you can enter a country, you can generally transit there without worrying about the destination and all other complex rules for transit (which only apply to people who cannot enter the country without visa).

Since Canadian citizens can enter the UK for tourism and other purposes, they can also transit there without visa.

Not the answer you're looking for? Browse other questions tagged or ask your own question.