Upvote:2
My plan is to travel on 21 or 22 of December, first day of my university Christmas break, but my fatherβs flight to France is already booked for the 24th. Is it going to be a problem if I arrive in the UK, leave 2 days after then come back to UK after 7 days?
No it won't be a problem, as long as you have the visas to cover this trip. You should therefore apply for both a UK visa and a Schengen visa. In addition, you need to be truthful and present a strong case. To do so, you typically need to include:
The purpose of these supporting documents is to demonstrate strong ties to your home country, the ability to support yourself during the trip, and the purpose of the trip.