Amazing deal: Washington to Barcelona, Spain flights roundtrip as low as $490.
Departure: November 26, December 3
Return: December 1, 8, 11, 15
Note, that WOW air has carry-on bag 11 kg (22 lbs), Size: 42x32x25cm + one personal item (max 42x20x20cm) included in fare. Checked-in luggage is for extra charge. Travel on light, save on airfare!
Note, 11-13 hour layover in Reykjavik, but that is an amazing opportunity to see one more city during 1 trip.