Six Flags Discovery Kingdom
vs
Universal Islands Of Adventure

On a typical day Six Flags Discovery Kingdom queues less: about 21 minutes a ride against 25 at Universal Islands Of Adventure, a difference of roughly 4 minutes on every queue you join.

See both right now Compare other parks

01 · On a typical day

What you would normally queue.

Averages across recent weeks, so one broken ride or one wet Tuesday cannot decide it. This is the comparison to plan a trip on; the live figures below are the one to act on today.

Six Flags Discovery Kingdom and Universal Islands Of Adventure compared on their typical recorded queue times
Typically	Six Flags Discovery KingdomUnited States	Universal Islands Of AdventureUnited States
Average wait per ride	21 min (best of the two)	25 min
Rides with recorded waits	18	18
Longest typical queue	WONDER WOMAN Lasso of Truth44 min	Hagrid's Magical Creatures Motorbike Adventure™68 min
Shortest typical queue	Thrilla Gorilla5 min	Storm Force Accelatron®6 min
Average ride uptime Share of opening hours a ride is running	84%	89% (best of the two)

Averaged across every ride at each park with recorded waits. A ride that never opened is left out, so a park is not flattered by counting a shut ride as a queue of zero.

02 · Right now

Both parks, this minute.

Live queue times at both parks. These fill in as soon as the page loads, and keep updating while you are here.

Six Flags Discovery Kingdom and Universal Islands Of Adventure compared on live queue times
Right now	Six Flags Discovery KingdomUnited States	Universal Islands Of AdventureUnited States
Average wait right now	-	-
Rides open	-	-
Opening hours today	-	-
Longest queue	-	-
Shortest queue	-	-

These keep refreshing while this page is open. A closed park posts no waits, so its rows read as dashes rather than zeroes.

Verdict, on a typical day On a typical day Six Flags Discovery Kingdom queues less: about 21 minutes a ride against 25 at Universal Islands Of Adventure, a difference of roughly 4 minutes on every queue you join.

03 · Choosing

Which one is your day out.

Every line here is earned by one of the figures above - nothing is a generic sentence with a park name dropped into it.

Pick Six Flags Discovery Kingdom if…

You want shorter queues: Six Flags Discovery Kingdom averages 21 minutes a ride against 25 at Universal Islands Of Adventure
WONDER WOMAN Lasso of Truth is on your list - it is Six Flags Discovery Kingdom's longest typical queue at about 44 minutes, so it is the one to do first
You want Six Flags Discovery Kingdom's own character - the rides, theming and atmosphere described below

Pick Universal Islands Of Adventure if…

You will accept a longer queue - 25 minutes a ride here against 21 at Six Flags Discovery Kingdom - for what Universal Islands Of Adventure has that Six Flags Discovery Kingdom does not
You would rather not find rides shut: Universal Islands Of Adventure's rides run 89% of opening hours against 84% at Six Flags Discovery Kingdom
Hagrid's Magical Creatures Motorbike Adventure™ is on your list - it is Universal Islands Of Adventure's longest typical queue at about 68 minutes, so it is the one to do first
You want Universal Islands Of Adventure's own character - the rides, theming and atmosphere described below

04 · The parks

What each one is.

Six Flags Discovery Kingdom

Six Flags Discovery Kingdom sits in Vallejo, California, on San Francisco Bay's northern edge. The park combines a theme park with a marine-animal section, running coasters like Medusa (the West Coast's first floorless), Kong (an inverted coaster), Superman: Ultimate Flight, Joker 4-D Free Fly Coaster, and the newer DC Stunt Coaster. Dolphin, sea lion and bird shows run throughout the day.

Bay Area weekend visits, California school holidays, and the Fright Fest event drive Discovery Kingdom's peak crowds. Weekdays in April, September and October are dramatically quieter, with queue times on most rides staying short. Check live wait times for Medusa and Superman on arrival, and use our crowd calendar to pick a midweek date for shorter waits. The bayside setting makes for pleasant walking even on quieter days.

Six Flags Discovery Kingdom live queue times

Universal Islands Of Adventure

Universal's Islands of Adventure is widely regarded as one of the best theme parks in the world. Its line-up blends record-breaking coasters with detailed themed lands: Hagrid's Magical Creatures Motorbike Adventure, Harry Potter and the Forbidden Journey, VelociCoaster, The Incredible Hulk Coaster, Pteranodon Flyers, and the classic Jurassic Park River Adventure. The Wizarding World's Hogsmeade is the park's most iconic area.

Like its sister Studios park, Islands of Adventure stays busy year-round, with Hagrid's and VelociCoaster consistently posting the longest queues. Peak periods are US school holidays, Halloween Horror Nights and Christmas. Check live wait times immediately on arrival and head to Hagrid's first. Use our crowd calendar to pick the quietest possible date for your trip.

Universal Islands Of Adventure live queue times

05 · Questions

Six Flags Discovery Kingdom or Universal Islands Of Adventure?

Which is better, Six Flags Discovery Kingdom or Universal Islands Of Adventure?

If you are judging on queues, Six Flags Discovery Kingdom: it averages about 21 minutes a ride on a typical day against 25 at Universal Islands Of Adventure, roughly 4 minutes back on every queue you join. Six Flags Discovery Kingdom has 18 rides with recorded waits against 18 at Universal Islands Of Adventure. Universal Islands Of Adventure also runs its rides more reliably - 89% of opening hours against 84%.

Which has shorter queues, Six Flags Discovery Kingdom or Universal Islands Of Adventure?

Six Flags Discovery Kingdom, by about 4 minutes a ride. On a typical day Six Flags Discovery Kingdom averages 21 minutes against 25 at Universal Islands Of Adventure. Queues still move hour by hour, and a midweek day outside school holidays beats the gap at either park. See Six Flags Discovery Kingdom best time to visit and Universal Islands Of Adventure best time to visit to pick a quiet day.

Can I visit Six Flags Discovery Kingdom and Universal Islands Of Adventure in the same trip?

Yes - both parks are in United States, so a two-park trip is realistic over a long weekend. Split the days so you start at whichever opens earliest and drive to the other in the evening.

How many rides does each park have?

See the tables above for ride counts - or jump to Six Flags Discovery Kingdom and Universal Islands Of Adventure for the full ride lists.

Is Six Flags Discovery Kingdom bigger than Universal Islands Of Adventure?

They track the same number of rides here - 18 each. Acreage matters less than how many of those you can actually get on in a day, which comes down to queues and opening hours, and there Six Flags Discovery Kingdom is ahead.

Then pick
the quiet day.

Both parks have a crowd calendar with six weeks of forecast and the best day left to go.

Six Flags Discovery Kingdom calendar Universal Islands Of Adventure calendar Compare other parks