I'm going to try to answer you, although pollination is not my specialty.
In the case of blueberries, which are probably the most remote right now, the trip can be done in 12 hours. However, if I am not mistaken, the breaks that truck drivers have to take present a problem. Taking breaks during long trips is not possible for beekeepers: if we stop and the sun starts to rise, the bees will take flight and we will lose them. The hives will die or suffer from overheating. They are piled on top of one another, and each of them produces 15 kilowatts of heat. It is therefore very important to keep moving and get where you are going quickly.