when i search for prices to philippines, always etihad and more often than not qatar come out the best two companies for return tickets. don't know if it will be the same for one-way, don't see why not.
i visited 6 times and every time i used qatar airways cos i got the best deal with them to manchester. etihad are not far behind. sometimes KLM are not too far away but usually not in the same ballpark for a low price.
