Iceland stopover
a group of airplanes parked in a terminal

Icelandair Boston to London $388, Copenhagen $348, Oslo $356, Stockholm $392, Paris $487

United $494 Washington IAD to Paris nonstop Nov 1- Dec 15

AA $466 JFK-LGW, Icelandair $413 JFK–London LHR Oct-Dec, EWR-Paris $521

Icelandair $358 JFK–Stockholm round trip with stopover in Iceland

a screenshot of a flight information

Icelandair Boston to Paris $435, London $490 with free Iceland stopover and low United fares to Germany

Icelandair $377 USD Toronto to Paris round trip with free stopover in Iceland