Hi rani,

UK does not require 6 months passport validity, only that the passport is still valid on the last day of your trip when you leave. So no worries on that one.

The issue you'd be best advised to clarify is the position of the airline carrier you are using.

I would strongly suggest getting written confirmation from the airline on this.
As I mentioned before I have known plenty of others travel back home to Philippines (their country of nationality) with very short passport validity (less than 6 months) and not had any problem.

In ALL cases however they had to hand :-
Written confirmation from the Philippine Embassy that there is no problems concerning entry to Philippines with less than 6 months passport validity.
Written confirmation from the airline that Philippine citizens can travel to the Philippines without having a passport with 6 month validity.

It's really the check-in staff at the airport that need convincing.