In England and Wales, when you reach State Pension age or over, you can apply for a free bus pass. This means you can travel on buses at non-peak times for free.
If you are living with a disability and meet specific criteria, you can apply for a free disabled persons bus pass.
In Scotland, you can apply for a free bus pass if you are disabled or when you reach 60 years of age.
In Northern Ireland, if you're over 60 you can apply for free travel.