Hi All,

I currently live in Philadelphia (PHL) but I am about move to Portugal. I will mostly be in Porto (OPO) and Lisbon (LIS).

I will be flying back and forth between LIS/OPO and the east cost of the US probably 4-6 times per year (mostly PHL but sometimes BOS or an NYC airport). I will be booking the cheapest flights possible.

I am looking for advice on which loyalty program to favor.

It seems like my main choices for cheap flights are Iberia (through MAD) or Lufthansa (through FRA).

In my view the advantages of Iberia are:
More convenient flights
Partnership with BA/AA (can I earn BAEC Tier points and Iberia Plus Elite points on the same flight?)

The advantages of Lufthansa are:
Better planes
Overall better airline than Iberia
Partnership with TAP

Any thoughts or advice would be much appreciated.

Also please let me know if you need more info! First time posting here and I am sure I left out key details.