Visa to Pass through the UK transit:
If you are going to another country and your stay or transit station in the UK, then you can apply for Visa to pass through the UK transit. You must meet the standard of eligibility to get this visa, your main destination is another country with sufficient money and a consent letter to travel, you can enter that other country, the main purpose is transit to visit the UK.
This visa is not applicable if you do have an EU settlement family scheme visa, marriage visa, home office travel documents. There are two types of transit visas as you are going through border control and leaving the UK within 24 hours inform to the airline. If you are not going through direct UK border control, then apply for direct airside transit Visa (ADTV). The cost of a transit visa depends on your country’s nationality.