Not that I can think of. It's pretty annoying in my opinion.
Of course, I also think that accepting and then starting a passenger mission needs to be separate things. That is, when you accept a mission, the passengers don't board right then. Accepting the mission just sells them a ticket. Then the mission shows up on the mission board just like how donation missions do - requires another click to actually start them.
The point would be, I could pick a destination that I actually am willing to fly to, and then spend a week or so "selling tickets" to it. So now I've got three or four missions to the same place, I switch to my Orca and fly around picking up the passengers, and off we go.
