RT flights to Europe – Summer 2018 – Iceland Stopover – NYC/WAS/BOS to AMS and others – Less than $390 RT

A few days ago, I bought tickets for our family of 7 to go from WAS (IAD) to CDG, returning from AMS to KEF (two day stop-over) and then continuing back to WAS – $440 per person in the middle of June. – I checked today and the price has dropped to about $350 per person (depends on the departure/arrival airports – see attached images). This is cheap considering it’s the beginning of the Summer travel period. Going RT to Europe with a free stop-over in Iceland for $350 per person is pretty slick (IMHO).
Links to google flights:
IAD-AMS – $326
BOS-AMS – $326
NYC(EWR)-AMS – $383