Same here
I had no problems using KLM when they flew Manchester-Amsterdam-Manila but last time used Cathay Pacific Heathrow-Hong Kong-Manila.
I believe Cathay Pacific flights take the least time ( 14 hours 30 minutes out, 16 hours 10 minutes back, with 1 hour stopover in Hong Kong ). This means they're not the cheapest. KLM times are 17 hours 10 minutes out and 19 hours 45 minutes back ( or longer ) from Heathrow, but of course they're cheaper. Longer flights do seem to be less expensive but I'm not an expert - and wherever I fly from involves a train journey of several hours to reach the airport !