ICELANDAIR CHANGE FLIGHT THINGS TO KNOW BEFORE YOU BUY

I just booked a five working day, six evening stopover on the a person-way ticket. I’m flying from Boston to Bergen, Norway to affix a tour group. I can get off in Reyjavik after which you can go on to Bergen. The tour finishes in Helsinki so I couldnt reserve Roundtrip, and I wasnt necessary to. I spotted that touring to Dulles will be inconven