What is the process for my Thai girlfriend to obtain a visa to visit England?

To bring your Thai girlfriend to England for a short visit, she will need to apply for a visitor visa. It is critical to demonstrate that she has strong ties to Thailand, such as family or employment, to ensure her return after the visit. Although you can book her flight first, it's advisable to apply for the visa without a flight reservation. You can either apply independently or use an agency, but many recommend handling the application yourself to save on costs.