Your Immigration Expert
Transit Visa Prices
You have the answer for US transit visas which is correct and the UK charges two types of fees.
Direct Airside Transit visa ( DATV ) – £32
Visitor in Transit visa – £59
The cost may vary slightly depending on which country you’re in currently.
Canada is not a stopover for any airlines I know on your route so I have not provided their arrangements.
As you have held a tourist visa previously you will not an issue securing a visa, but you are correct transit visas seem like a complete waste of time and money and do little for security or stopping people applying for asylum on arrival. I wish you the best with your new job.