Also works to Bilbao in case you want some Game of Thrones sightseeing, good wine and excellent Seafood...
Lisbon to Bilbao is an all-Economy flight in full fare economy Y which credits at 100% to most programs, this last segment is just 450 miles each way so it varies if you receive 500 mile minimums. Assuming that you earn flown miles, it would be
16036 milesfor the TATL part and
950 miles for the intra-Europe hop for a grand total of
16986 miles.
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