Fly from Boston BOS to London LGW for $99 one-way as part of the newly launched WOW Air from Iceland.

You'll find similarly low intro fares available from both Boston and Baltimore to Reykjavik, London, and Copenhagen. Look for service from BOS to begin in March, with BWI scheduled for June.

Those $99 intro fares are only available on the outbound leg, so expect to pay a bit more for the flight home, but not that much more. We did see round-trips for September 2015 still available for $398.

Yes, luggage will cost extra. Light packers who can get by with carry-ons weighing no more than 11lbs/5kg are in the clear. You may purchase an extra 7kg/15lbs for $38 each way. And a checked bag will run you $67 each way. Still a deal considering how high London fares can run. 

Visit WOWAir.us for more info on current intro deals to London, Reykjavik, and Copenhagen.

London image via Shutterstock