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THE FLASH™: Vertical Velocity at Six Flags Great America. Closed right now.
Busiest around 4pm (about 40 min) and quietest around 11am (about 3 min).
Of the days recorded so far, Saturday averages the longest queue, at about 31 minutes.
Closed during 7% of the readings taken while the park was fully open. The feed does not say why, so that covers refurbishment and weather as well as breakdowns.
The longest queue we have recorded is 120 minutes on 2026-10-17, the shortest 0 minutes on 2026-08-14.
| 11am | 3 min | 13 readings | |
|---|---|---|---|
| 12pm | 10 min | 14 readings | |
| 1pm | 16 min | 17 readings | |
| 2pm | 27 min | 20 readings | |
| 3pm | 33 min | 20 readings | |
| 4pm | 40 min | 21 readings | |
| 5pm | 29 min | 28 readings | |
| 6pm | 26 min | 28 readings | |
| 7pm | 31 min | 24 readings | |
| 8pm | 26 min | 19 readings | |
| 9pm | 30 min | 17 readings |
See every ride at Six Flags Great America live, or read the park’s history.