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Plus Size Stores in Ontario, CA

Ontario has 3 plus size stores — including 1 independent boutique, 2 with bridal & formal, and 1 with proven extended sizes (4X+). Listings are ranked by what shoppers say (rating weighted by review count) and show size ranges and live open-now hours, so you can pick a store and go.

David's Bridal Ontario CA

4.8 ★★★★★ 5,795 reviews

Ontario Gateway Shopping Center, 4410 Ontario Mills Pkwy, Ontario, CA

Bridal & formal Extended sizes 4X+ Boutique body-positive experiencepersonal styling helpgreat dress selection

Retail chain specializing in bridal gowns, prom dresses & formal wear, plus related accessories.

Camille La Vie

4.8 ★★★★★ 1,497 reviews

1 Mills Cir #622, Ontario, CA

Bridal & formal great fitting rooms

Dresses, shoes & accessories for special occasions, including prom, homecoming, weddings & more.

Torrid

4.5 ★★★★★ 225 reviews

1 Mills Cir Ste 213, Ontario, CA

great fitting rooms

Women's clothing chain known for its trendy plus-size cocktail dresses, jeans, lingerie & footwear.

Good to know in Ontario

All 3 stores with posted hours are open on Sundays.

For curated racks and an owner who knows the inventory, the boutique here is David's Bridal Ontario CA.

For depth past 4X — proven on the store's own site, not promised — David's Bridal Ontario CA stocks extended sizes (4X+ / size 26+).

Dress shopping for an event?

These stores show real bridal or formal evidence — from the store's own site or shopper reviews, not a guess. Plus size gowns to actually try on, whether it's a wedding, prom, or mother-of-the-bride.

Plus size bridal & formal in Ontario →

Plus size stores near Ontario