Hi! Does anyone have any advice on pumping while on vacation/ traveling?

We are leaving for a 6 day vacation without our baby boy (he will be 6 months when we leave) at the end of October. I am so excited for a vacation but very nervous about pumping while on vacation and traveling/ flying. I don’t want to lose my supply, but also want to enjoy our vacation.

Any suggestions on traveling and pumping or flying with breast milk? How many times should I pump a day? Can I bring expressed breast milk on the plane?

Also nervous about how my baby will handle not breastfeeding for that long. We don’t exclusively breastfeed so he’s used to getting a bottle once in a while but he can get fussy when he gets a bottle but wants the boob.

Any help would be appreciated!!