WOW Air offers select 1-Way Flights to Scandinavia and Europe on sale with prices starting at $71.40. That's the best price we've seen for flights from the US to Europe. It's also a current low for select routes by $336. This price is valid on flights departing from Boston, MA, (BOS) with arrival in London, England (LGW) on September 12. Note that this airline is a "non-bundle" airline, so seat reservation and luggage costs are additional. This travel deal is based on travel from March 2015 through September 2015. Click here to see more routes.