Visiting the Gateway Arch: Enter the monument through the Gateway Arch Visitor Center, which faces Fourth Street and the Old Courthouse. The Gateway Arch legs are exits only. Please allow at least 30 minutes to go through security. Tickets sell out early and often, advance reservations are strongly recommended. Pending availability, additional tickets may be available for same-day purchase beginning at 9am each day through our website, call center, and ticket center at the Gateway Arch. Same-day ticket availability is not guaranteed and sells out early and often.