If you are afraid of getting that sunburn in August, then all is good, because this fare is available from late April through mid-May then again from mid-August through December.
Searching on AA.com we found flights departing BOS on Wednesday, August 15 and returning from NCE on Friday, August 24, 2018. This fare is available for travel Monday through Friday at this price with a 7-day minimum stay requirement. Nice airport is a great jumping off point to Cannes, Monaco, and flashy Saint-Tropez where you can live it up like a celebrity. Delta is offering this route at a slightly cheaper price but it books into Basic Economy, whereas this Iberia fare will include checked baggage.
Have a look at our Boston BOS flight deal page for other great Summer fares.
Need a nice hotel in Nice? This is what is available for the provided dates on Hotelwatchdog.