Get ready for a Halloween in Seattle packed with heavy-hitting beats, creepy characters, and supernatural surprises. BOO! Seattle 2026 returns October 30–31 to transform WAMU Theater into one of the Pacific Northwest’s spookiest Halloween parties. Expect heart-pumping electronic music, indoor rides, elaborate costumes, and frights and surprises behind every door.
Dates, hours, and location
BOO! Seattle takes place over two nights, with festivities running from 5 PM to 1:30 AM each evening.
- Friday, October 30: 5 PM–1:30 AM
- Saturday, October 31: 5 PM–1:30 AM
- Venue: WAMU Theater, Seattle, Washington
- Age requirement: 18+ for general admission; 21+ for VIP
- Camping: Not available
Lineup and festival highlights
With three themed stages and more than 50 DJs and performers across two nights, BOO! Seattle promises a monstrous soundtrack for Halloween weekend.
Friday night’s headliner is GRiZ, while Subtronics takes over as Saturday night’s headliner. The supporting lineup features an exciting mix of electronic music talent, including TroyBoi, YDG, LYNY, Space Laces, Levity, Sara Landry, The Masquerade, and Kayzo, among others.
Beyond the music, festivalgoers can explore larger-than-life art installations, encounter sinister roaming creatures and stilt-walkers, and catch fire twirlers and other eerie entertainment. Indoor rides and immersive Halloween-themed environments add to the experience.
Tickets and VIP perks
Tickets include single-day and two-day General Admission (GA) passes, along with 21+ VIP options.
GA admission unlocks the full festival experience, including multiple stages, roaming performers, art installations, and Halloween-themed attractions. VIP upgrades offer expedited entry, water stations, private restrooms, exclusive dance areas, signature BOO cocktails, and more. VIP access is restricted to guests aged 21 and older.
Costumes and bag policy
Costumes are encouraged, but outfits resembling police, SWAT, fire, security, or medical uniforms are prohibited. Weapons are also banned, including imitation weapons such as lightsabers.
WAMU Theater is a clear-bag venue. Large purses, bags, and backpacks exceeding 12 × 12 inches are not permitted.
Whether you’re there for the headliners or the Halloween spectacle, BOO! Seattle 2026 promises two nights of wicked beats and spooky thrills.
