I haven't seen anyone post anything about this, but in the brochure for the park it lists the Dark Knight as having flash pass. On the website, it does not. So I emailed Six Flags and someone called me yesterday saying that The Dark Knight does indeed support Flash pass. Also is it cheaper to buy the flash pass at the park or buy it online. Any help would be great. Planning on going with my cousin, brother in law, and sister on Father's day so any help would be great!!
There is a flash pass line for TDK, but I'm not sure if it's been used yet. As for getting the Flash Pass, for the day you're planning, it's really a toss up if you actually want to get it. The lines will be long (most rides about an hour wait, a bit longer for B:TR, TDK, and S:UF), but not too long. I personally would not recommend it for that day.
Flash pass line was in the blueprints from photos at NCC. I guess take one Flash Pass Attraction( DeJaVu) out needed to replaced with another one the dark knight coaster. Since it's a contracted flash Pass Devices that requires so many attractions for the price with that outside company.