All time
Blair Witch: No Signal has the longest average wait at Six Flags Great America, at 58 minutes, followed by The Conjuring Universe (57 minutes) and Maxx Force (49 minutes). 5 of the 29 rides have an average wait of 15 minutes or less.
Blair Witch: No Signal sees the longest peak waits at Six Flags Great America, with its daily maximum averaging 81 minutes, ahead of The Conjuring Universe (73 minutes) and Wrath of Rakshasa (68 minutes).
Six Flags Great America is usually quietest in December, when crowd levels average as low as 28%. The busiest month tends to be October, at around 66%.
| Month | Average crowd level, % |
|---|---|
| Jan | — |
| Feb | — |
| Mar | — |
| Apr | 45 |
| May | 55 |
| Jun | 44 |
| Jul | 48 |
| Aug | 57 |
| Sep | 53 |
| Oct | 66 |
| Nov | 35 |
| Dec | 28 |
Thursday is typically the quietest day of the week at Six Flags Great America, averaging 40% compared with 63% on Saturday. On average, weekdays are 16 percentage points quieter than weekends.
| Day | Average crowd level, % |
|---|---|
| Sun | 56 |
| Mon | 51 |
| Tue | 42 |
| Wed | 41 |
| Thu | 40 |
| Fri | 46 |
| Sat | 63 |
So far in 2026, crowd levels at Six Flags Great America are similar to the same point in 2025 (44% compared with 44%). Of the full years on record, 2019 was the busiest, averaging 59%. 2021 is left out of these comparisons because COVID-19 closures and capacity limits affected crowd levels that year.
| Day | Crowd level, % |
|---|---|
| October 09, 2021 | 100 |
| October 16, 2021 | 99 |
| October 22, 2022 | 99 |
| October 19, 2024 | 99 |
| October 23, 2021 | 99 |
| July 05, 2021 | 99 |
| October 17, 2021 | 99 |
| October 10, 2021 | 99 |
| October 19, 2019 | 99 |
| July 17, 2021 | 99 |
| Day | Crowd level, % |
|---|---|
| December 21, 2021 | 0 |
| December 22, 2021 | 0 |
| December 29, 2021 | 0 |
| July 12, 2023 | 0 |
| October 20, 2022 | 1 |
| June 21, 2022 | 1 |
| May 14, 2023 | 1 |
| June 17, 2026 | 1 |
| June 18, 2025 | 1 |
| December 20, 2021 | 1 |