Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 111% on the overall cost on flights from Boston to Salzburg.
A simple way to save on the total cost of your ticket is to fly from Boston to Salzburg at noon. If you’re flexible enough to do this you can expect to save up to 48% on your trip compared to booking a flight in the morning.