WOW Air via ShermansTravel offers WOW Air 1-Way Flights to Scandinavia and Europe from select cities in the U.S. with prices starting from $109.99. (On the ShermansTravel landing page, click on "WOWair.us" in the main paragraph to see this sale.) That's the lowest price we could find for select routes today by $136, although we saw such fares for $11 less in March. This price is valid on flights departing from Boston, MA, (BOS) with arrival in Reykjavik, Iceland, (KEF) on September 25. Note that this airline is a "non-bundle" airline, so seat reservation and luggage costs are additional. Other routes include flights to Amsterdam, Netherlands, (AMS); Stockholm, Sweden, (STO); and Edinburgh, Scotland, (EDI). Book this travel deal by May 31.

All prices, dates, and booking details were valid at the time of publication.