Whether you’re dressing for prom, a wedding, a gala, or a black-tie event, finding the perfect long formal dress online has never been easier. Thanks to countless retailers offering stylish, affordable, and even designer options at the click of a button, you can score a show-stopping gown without leaving your home. Here’s a breakdown of the top online destinations to shop long formal dresses—whatever your style or budget.
1. Revolve: For Trendy, Statement-Making Styles
Why We Love It: Revolve is a go-to for fashion-forward shoppers looking for the latest trends in formalwear. Think dramatic slits, cutouts, bold colors, and modern silhouettes.
Best For:
- Fashionistas
- Statement pieces for red-carpet-inspired looks
- Dresses from brands like Nookie, LPA, and Lovers + Friends
Pro Tip: Check the “Wedding Guest” and “Formal Dresses” sections for curated picks.
2. Nordstrom: Elegant Options for Every Budget
Why We Love It: Nordstrom combines elegance and variety. With everything from classic to contemporary gowns, you’ll find plenty of long dress options in all colors, cuts, and sizes.
Best For:
- Classic and elegant evening gowns
- Designer labels like Mac Duggal, Aidan Mattox, and Adrianna Papell
- Free shipping and returns
Pro Tip: Use their filtering system to shop by event, body type, or style to narrow your options easily.
3. ASOS: Affordable and On-Trend
Why We Love It: ASOS brings you high fashion with a budget-friendly twist. With a wide range of sizes—including petite, tall, and curve—the site is incredibly inclusive.
Best For:
- Trend-driven shoppers on a budget
- Unique silhouettes and bold designs
- Plus-size formalwear
Pro Tip: Bookmark their “Occasionwear” section—it’s updated regularly with fresh drops.
4. Lulus: Romantic, Feminine, and Budget-Friendly
Why We Love It: Lulus is known for its dreamy formal dresses that are perfect for weddings, proms, and parties. Their selection is elegant without being over the top.
Best For:
- Wedding guests and bridesmaids
- Soft pastels, lace, and flowy silhouettes
- Affordable prices (most dresses under $150)
Pro Tip: Read reviews for real customer photos and size tips before buying.
5. Net-a-Porter: Luxury Picks Worth the Splurge
Why We Love It: If you’re ready to invest in a high-end gown, Net-a-Porter offers stunning designer dresses from Valentino, Stella McCartney, and Oscar de la Renta.
Best For:
- Black-tie galas
- Couture-level craftsmanship
- High-fashion moments
Pro Tip: Look out for seasonal sales for up to 50% off designer finds.
6. PrettyLittleThing & Boohoo: Budget-Friendly and Bold
Why We Love It: These UK-based fast fashion sites offer glamorous long formal dresses that won’t break the bank. Perfect for last-minute looks with major style points.
Best For:
- Budget-conscious shoppers
- Sexy, body-hugging fits and vibrant colors
- Quick trends and bold styles
Pro Tip: Check size guides and reviews—they run differently from US sizing.
7. Amazon: Endless Variety & Quick Shipping
Why We Love It: Amazon is surprisingly great for formal dresses, especially if you need one ASAP. From sleek gowns to sequined showstoppers, the variety is unmatched.
Best For:
- Last-minute shopping
- Diverse brands and price points
- Prime delivery options
Pro Tip: Filter by 4-star and above for quality assurance, and always check user photos.
8. BHLDN (Anthropologie): Whimsical & Wedding-Ready
Why We Love It: BHLDN is a haven for ethereal, vintage-inspired formal dresses. Ideal for weddings and romantic occasions, their gowns feel special and unique.
Best For:
- Bridesmaids and wedding guests
- Soft hues, floral embroidery, and delicate details
- Dresses with timeless charm
Pro Tip: Shop early—popular sizes sell out quickly, especially during peak wedding season.
9. Rent the Runway: Designer Glam for Less
Why We Love It: Not looking to keep your dress forever? Rent the Runway offers designer gowns at a fraction of the retail price with flexible rental options.
Best For:
- One-time events
- Designer looks without the commitment
- Sustainable fashion choices
Pro Tip: Use their try-on program or order a backup size to ensure the perfect fit.
Final Thoughts
Shopping for long formal dresses online gives you access to endless styles, colors, and sizes—all from the comfort of your couch. Whether you’re going bold and glam or soft and romantic, the perfect gown is just a few clicks away. Use trusted sites, read reviews, and don’t be afraid to step outside your comfort zone. With so many stunning options available, your dream dress is out there—you just have to find it.