Sorry, I forgot to mention one thing.
For your reference there are 3 flights per day from BOS-CDG, they are as follows:

Depart : 9:00 PM Arrive: 9:50 AM +1
FLT: AA 146 EQP: 767-300 FREQ: DAILY
or

Depart: 8:10 PM Arrive: 8:50 AM +1
FLT: AF337/DL8203 EQP:767-300 FREQ: DAILY
or

Depart: 5:50 PM Arrive: 6:30 AM +1
FLT: AF 321/DL8259 EQP:763 FREQ: MON,THUR,FRI,SAT,SUN

Bon Voyage!!!!