Seattle is already gearing up for Halloween 2026 with plenty of ways to celebrate, from family-friendly pumpkin bashes, trick-or-treating, and community carnivals to haunted houses, costume parties, spooky museum experiences, and Día de Muertos celebrations. Whether you’re looking for a daytime activity with the kids, a creepy nighttime haunt with friends, or a full Halloween weekend of costumes and festivities, these are the best Halloween events happening throughout Seattle in the days leading up to and including October 31.

Step into a live horror movie—90 minutes of cocktails, clues, and surprises. For a Halloween night out with built-in thrills, The Nightmare Bar is a 90-minute immersive Halloween pop-up at DAR Rainier Chapter House in Seattle featuring spooky rooms, themed cocktails, interactive micro-challenges, photo moments, and live surprises. The limited run runs from October 9–31, 2026, with performances Thursday through Sunday.

Thousands of candles and haunting classics will light up the National Nordic Museum this Halloween. For a Halloween night out with a chilling twist, Candlelight: A Haunted Evening of Halloween Classics will transform the National Nordic Museum in Ballard into a candlelit concert on October 30, featuring a live string quartet performing horror themes, sinister classical pieces and Halloween staples. The programme includes music from Stranger Things, Psycho, Halloween, The Exorcist and classics like Danse Macabre and Tubular Bells.

One of the country’s scariest haunted houses has reopened — enter if you dare. If your Halloween plans call for a full-on scare, The Georgetown Morgue is a notorious haunted house in Seattle open for the 2026 season now through November 7. Housed in a 1928 former funeral preparation home and morgue, tickets start at $38 with a Dark Maze add‑on for $8.

If you’re up for a spooky evening trip just outside of Seattle, you can get scared at Stalker Farms. During the day, all ages can enjoy corn mazes, pumpkin picking, rides and a beer garden at Stocker Farms. But after dark, the corn maze turns into one of the most popular haunted attractions in Washington state.

If you’re up for an October weekend getaway with a witchy twist, Coupeville on Whidbey Island is hosting its annual Practical Magic festival this October with lots of fun Halloween events planned (and, of course, Midnight Margaritas). And while you’re on the island, you can catch screenings of Practical Magic 2 at the Blue Fox Drive‑In. Read more at the link below.

Don’t miss Wild Waves’ final Fright Fest — 15 nights of haunted houses, scare zones and night rides. If you’re looking for a bigger Halloween night out near Seattle, Wild Waves Theme & Water Park will host its last-ever Fright Fest for 15 nights from October 2 through November 1, 2026 (Fridays through Sundays) as the park prepares to close permanently after the 2026 season.

Boo! Seattle is back for two nights this October at WAMU Theater. This large-scale Halloween EDM concert is for ages 18+, with VIP perks available for ages 21+. This year’s lineup features headliners GRiZ and Subtronics, and there will be tons of spooky surprises in addition to the multiple main stages.
Take your kids to Pumpkin Bash at the zoo

Head to Woodland Park Zoo on Halloween for trick-or-treating, a costume parade, pumpkin activities for animals, and more. One child 12 or under gets free admission with each full-price adult ticket.
See the Animal Ofrenda at the zoo

Also at Woodland Park Zoo this month, this Día de Muertos event features a traditional ofrenda (altar) that honors and remembers animals and pets, alongside the zoo’s Halloween programming.
Go to Seattle’s free Día de Muertos Festival

This event is free and open to the public, with performances, community altars, face painting, sugar-skull workshops, visual art and more. Find it in the Armory Food & Event Hall at Seattle Center on Saturday and Sunday.
Go see Can Can’s “This Is Halloween”

A dark fantasy burlesque musical, This Is Halloween is an original adaptation parody running from October 15 to October 31. Since it’s being performed at The Triple Door, you can order food and beverages to enjoy during the show. Note that Sunday 5 pm shows are all ages, while all 9 pm showings are 21+. Read more on the Can Can Seattle website.
Trick or treat at Harvest Fest in West Seattle

Grab your kids, your friends, and your dog for trick or treating, a parade, and good food in the Junction on Sunday, October 25. This year’s West Seattle Harvest Fest runs from 11 am to 2 pm. In addition to trick or treating and kid-friendly activities at small businesses in the Junction, there will also be a costume parade, a Thriller dance, a pie eating contest, and a chili cook-off.
Kids get free admission at Museum of FRIGHT

Seattle’s Museum of Flight transforms into the Museum of FRIGHT on Sunday, October 25. Enjoy the usual exhibits plus a spooky planetarium program, live music, arts-and-crafts, and Halloween games. Kids in costumes get free admission (ages 17 and under).
Go trick or treating at Seattle-Tacoma Airport

This is kind of random, but why not? Seattle-Tacoma Airport is offering trick-or-treating, photo booth, crafts, button-making, and an appearance by Jett the SEA Otter this Halloween. The event runs from 10 am to 1 pm. Wear costumes but leave your passports at home—you won’t have to go through TSA for the event.
After-hours Halloween for adults at the Seattle Aquarium

Get dressed up and experience the Seattle Aquarium after dark in a kid-free environment this Halloween. On the evening of Thursday, October 29 there will be a DJ, live music, Halloween activities, a costume contest, and food and drink for sale. Ages 21+ only; more details on the aquarium website.
Have a Prohibition-era Halloween atop Smith Tower

Guests are encouraged to dress in “vintage glamour, Prohibition-era fashion, and elevated costumes” for this 21+ evening that will include close-up magic and specialty cocktails at the Smith Tower Observatory Bar. Choose between two dates on the Smith Tower website: Friday, October 30 and Saturday, October 31.
Compete with your pup at Howloween at W Seattle

W Seattle is inviting Seattle’s four-legged friends and their humans to unleash their Halloween spirit at a Howloween: A Dog Happy Hour and Costume Contest on Thursday, October 22, from 6–8 p.m. in the W Living Room Bar. The free event will have cocktails, bites, treat bags courtesy of Woof Gang Bakery, a Halloween photo station, and a costume contest with prizes. Prepare for the three costume contest categories: Best Costume, Best Pair, and Most Creative.
Dress up for Fashionably Undead: MOPOP’s Halloween Bash

This year’s Halloween party at MOPOP features an alien theme! The evening features a range of spooky and alien-themed activities, including a costume contest with a $500 grand prize, immersive UFO abduction photo ops, horror and sci-fi movie trivia, tarot readings, and an alien invasion scavenger hunt throughout the museum. The evening also includes a mini gallery exploring the history and cultural themes of alien invasion horror. More details at MOPOP.
Join locals at Trolloween in Fremont

One of Seattle’s best and most little-known traditions is Trolloween, the annual Halloween bash celebrating the Fremont Troll’s birthday. There will be live music at the Troll at 7 p.m., followed by “a procession of the ghosts of artists past and present through the streets of Fremont.” Costumes are encouraged.

If you’d rather toast the season than run from chainsaws, Seattle has several bars hosting Halloween pop-up experiences throughout October—ranging from a haunted hotel lobby bar to an immersive speakeasy. For more ideas on where to grab a themed drink, see our full guide to this year’s Halloween bars in Seattle at the link below.

If you’re looking for a high-energy, adults-only Halloween party in the heart of downtown, join the Haunted W Seattle Halloween Bash on Saturday, October 31, 2026, from 9:00 PM to 2:00 AM at W Seattle. This 21+ Halloween party features top DJs, dancing across two floors, haunting décor, immersive lighting, themed cocktails, festive party favors, and plenty of photo opportunities. Come dressed in your scariest, sexiest, or most creative costume for a lively Halloween evening in downtown Seattle.

For a Halloween night out that’s a little more offbeat than your standard costume party, head to Fungi Fest, a unique 21+ after-hours event on October 31 that explores the fascinating world of mushrooms through science, art, and interactive experiences. Guests can enjoy mycology talks and hands-on activities; create mushroom-inspired crafts; receive free tarot readings; get a mushroom-themed caricature; and experience a video art installation. The night also includes a Thriller flash mob at 9:30 p.m. plus music from DJs. Costumes inspired by mushrooms and forest creatures are encouraged.

If you want your Halloween plans to lean more throwback than traditional haunted house, head to The Museum of Flight for “Haunted Skies.” On Saturday, October 24, 2026, the museum will transform into a spooky 2000s-inspired Halloween party inspired by Snakes on a Plane. From 8 to 11 p.m., guests can explore the museum after dark, dance to classic 2000s hits, watch the film’s 20th-anniversary screening, meet a live snake, enjoy tarot readings, flash tattoos and henna, try VR and the i360 flight simulator, and compete in a costume contest. Costumes are encouraged, and beer, wine, spirits, and food trucks will be available for purchase. Ages 21+ only.