Roadrunner Express: The Looney Tunes Kiddie Coaster at Discovery Kingdom

November 14, 2026

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by tz

Roadrunner Express is a compact family roller coaster tucked into the Looney Tunes Seaport section of Six Flags Discovery Kingdom in Vallejo, California. Built by Italian manufacturer Zamperla and running on the company’s Family Gravity Coaster 80STD platform, it opened in 1999 as part of the park’s cartoon-themed kids’ area and has been a steady first-coaster milestone for young guests ever since.

Themed around the classic chase between Wile E. Coyote and the Road Runner, the ride casts guests as passengers in a runaway Acme mine car looping through a single helix of track. It’s gentle by design, but its small hill, dip, and curvy spiral still give newcomers a taste of real coaster sensations without the intensity of the park’s bigger steel rides.

Stats at a Glance

  • Park: Six Flags Discovery Kingdom (Vallejo, California)
  • Manufacturer: Zamperla
  • Opened: 1999
  • Height: 13 ft
  • Length: About 262 ft
  • Inversions: 0
  • Minimum Height: 42 in

The Ride Experience

The layout is simple by design: a chain lift lofts the train to the ride’s 13-foot high point, then releases it into a short dip and a tight, curvy spiral before returning to the station. With six two-across cars seating up to 12 riders, Roadrunner Express moves a steady stream of families through its queue, making it one of the more accessible rides in the Looney Tunes Seaport lineup.

A Looney Tunes Favorite

Set in the cartoon-themed corner of the park once known as Popeye’s Seaport, Roadrunner Express leans fully into its Wile E. Coyote and Road Runner theming, casting riders as the plucky bird outrunning the hapless coyote across the plains. At a 42-inch minimum height, it’s one of the lowest thresholds among the park’s coasters, making it a frequent choice for a child’s very first roller coaster ride.

Explore more: more roller coasters at Six Flags parks.

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🎟️ Tours & Things to Do Near Six Flags Discovery Kingdom
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Roadrunner Express FAQs

How tall do you need to be to ride Roadrunner Express?

Riders must be at least 42 inches tall to ride; there is no shorter companion-rider allowance on this coaster.

Is Roadrunner Express a scary ride?

No. It’s a gentle family coaster with a 13-foot drop and no inversions, designed as an introductory ride for young children.

Where is Roadrunner Express located in the park?

It’s located in the Looney Tunes Seaport area of Six Flags Discovery Kingdom in Vallejo, California.

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Photo: Kiddo27 / CC BY-SA 4.0, via Wikimedia Commons.

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