Delta, KLM, and SkyTeam partners have round-trip flights from Portland (PDX) to Madrid, Barcelona, or Helsinki (MAD, BCN, HEL) for $439-$507 with a connection. Flights February to March and October to November.
A Carry-on bag and also a personal item is allowed for free. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Click for more details and booking links Cheap Flights: Portland to Madrid, Barcelona, or Helsinki $439-$507 r/t [Feb-Mar, Oct-Nov] – Delta / KLM / SkyTeam