Just waiting for delivery from VFS with my tgf UK fiancée visa application and my step daughters application.

Just One quick question - If my tgf's fiancée visa application and my step daughter's application is successful will they be able to purchase a one way flight from Thailand to UK or will she still need a return ticket to satisfy passport control?

Thanks in advance

As they are coming to settle in the UK a one way ticket will be fine.

Just waiting for delivery from VFS with my tgf UK fiancée visa application and my step daughters application.

Just One quick question - If my tgf's fiancée visa application and my step daughter's application is successful will they be able to purchase a one way flight from Thailand to UK or will she still need a return ticket to satisfy passport control?

Thanks in advance

when my thai gf came over i bought single ticket,we are now marrid and she has her ilr visa

Unless you intend not to go marry i suggest a single.