After the failed coup attempt in Turkey, I'm surprised that I didn't see any advertisements for last-minute chartered flights to bypass flying through Istanbul. Many passengers were paying exorbitant fees for same day plane tickets to avoid unnecessary exposure to the civil unrest. But, they likely would have paid less banding together to get to other hubs like Frankfurt or Dubai than acting alone.
In hindsight, I wish I had put together some Tilt campaigns to charter flights to common destinations with sufficient demand. At the point that passengers had given up on asking the airlines to reschedule or re-route them, this would've been a good alternative and I suspect people would've paid for someone to organize this. The main problem is that these flights would need to be filled quickly for people to feel certain that they'd actually happen.