would love some help trying to get a better option on a trip i have coming up.

Leaving from Edinburgh or Glasgow, need to get to east coast of USA (New York or Ideally Philadelphia) flying oneworld

If i go as direct as possible - EDI>>LHR>>PHL>>LHR>>EDI - comes in at £8k for business.

Worked out of I break in to two bookings one, via Helsinki, save a bunch of cash.
One booking from EDI>HEL return and then another booking from HEL>>couple of option airports>>PHL return works out at £6k in business.

I don't mind multiple stops, never say no to the bonus tier points :-)

I need to be in Philadelphia first thing on the 1st April and be there until 5pm on the 2nd May. Don't mind starting to travel on the 29th of April. Would like to be back as close as possible to 5pm on the 3rd April.

many thanks!