Floor Length White Formal Dresses
Floor length white formal dresses are the ultimate power move—think main character energy, but make it unforgettable. Whether you’re making an entrance at a gala, living your best life at a formal event, or just want to serve pure elegance with a side of drama, these dreamy gowns have your back. Ready to turn heads and own the spotlight? Your next iconic moment starts here.
$69.90
An ivory mesh mermaid dress featuring sequin embellishments, a lace-up back, and a floor-length hem.
$79.90
A stunning white mermaid dress with faux pearl embellishments and a cold shoulder neckline.
$59.90
A white satin formal dress featuring a form-fitting silhouette, sleeveless square neckline, and high front slit.
$149.90
A white mesh formal dress adorned with faux pearl beading, featuring a cowl neck and high slit.
$149.90
A white mesh mermaid dress featuring beaded faux pearls and a dramatic open-back halter design.
$79.90
A white formal dress featuring faux pearl embroidery, a sweetheart neckline, and a high side slit.
$159.90
A glamorous white mermaid dress with beaded embellishments, sultry cutouts, and a high front slit.
$119.90
A white sequin formal dress with a corset bodice and mermaid silhouette for glamorous events.
$25.97 $56.90 54% off
A white floral chiffon maxi dress featuring a flattering A-line silhouette and flowy hem.
$79.90
A white mesh floral dress featuring a corset bodice, pleated details, and a mermaid silhouette.
$42 $59.90 30% off
A white crepe formal dress featuring adjustable straps, ruffle trim, and a dramatic high front slit.
$69.90
An ivory mesh lace formal dress featuring a corset bodice, sweetheart neckline, and high front slit.
$89.90
An ivory lace mermaid dress with ruffled straps and a captivating tie-back design.
$59.90
An ivory lace mermaid dress with adjustable straps, ribbon bow V-neckline, and padded cups for support.
$69.90
An ivory satin mermaid dress featuring a floral print, lace-up back, and a dramatic front slit.
$74.90
An ivory floral velvet bodycon dress featuring a cowl neckline and high side slit for elegance.
$149.90
An alluring ivory formal dress with beaded embellishments, high side slit, and adjustable spaghetti straps.
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Chic and glamorous, the Rowena sequin mermaid long dress will stylishly elevate your formal night-out look. With a lace-up strap design and fitted mermaid silhouette with a high slit, you'll deliver stunning style. Fit & FeaturesSheer mesh fabric, knit lining, moderate stretch, embroidered sequin scroll design, Sleeveless square neckline, padded bust, Spaghetti straps, open back, lace-up strap design, tie closure, Lower back zipper with hook and eye closure, High waist seam, Fitted floor-length mermaid silhouette, high front slit, Runs true to size, Where to Wear:Prom, black-tie parties and galas, fancy engagement parties Free Shipping on All Orders Over $75. | Windsor Rowena Sequin Mermaid Dress in Navy Blue | Size: M | Knit Fabric/Mesh Fabric/Sheer Mesh Fabric
Effortlessly elegant, the Sophie glitter knit mermaid dress would be a stunning choice for a formal gala. She features a square neckline, short puff sleeves, a partially open back with a lace-up strappy design for a customized fit, a high waist seam, a floor-length hem, and a mermaid silhouette with a high front slit to showcase your heels. The glitter knit fabric offers a moderate stretch. Complete the look in this long dress with rhinestone statement earrings. Fit & FeaturesSquare neckline, Short puff sleeves, Open back, lace-up strappy design, tie closure, High waist seam, Floor-length hem, mermaid silhouette, front slit, Glitter knit fabric, moderate stretch, Sticky bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Sophie Glitter Knit Mermaid Dress in Navy Blue | Size: S | Knit Fabric/Rhinestone
The Gwendolyn glitter knit bow-back mermaid dress will have you sparkling up the night with a glamorous allure! Make your entrance in this floor-length gown designed to turn heads with a curve-flaunting mermaid fit and backless design. Fit & FeaturesGlitter knit fabric, moderate stretch, Square neckline, spaghetti straps, Backless design, high waist seam, Bow-back accent, floor-length train, Floor-sweeping hem, mermaid silhouette, Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout, Where to Wear:Weddings, black tie galas, formal dances, big birthday events, rehearsal dinners, engagement parties, red carpet occasions, upscale glam parties Free Shipping on All Orders Over $75. | Windsor Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Black | Size: S | Knit Fabric
The Lucille formal satin dress will have you looking and feeling radiant and luxe! The dress captivates with a lace-up back, mermaid silhouette, and high front slit for effortless allure. Fit & FeaturesLined satin knit fabric, minimal stretch, Sleeveless square neckline, padded bust, adjustable spaghetti straps, Open lace-up back design, zipper and hook-eye closure, Fitted bodice, front ruched seam, high-cut slit, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, black tie galas, red-carpet events, nights at the opera or theatre, big milestone celebrations Free Shipping on All Orders Over $75. | Windsor Lucille Formal Satin Mermaid Dress in Coral | Size: L | Knit Fabric/Satin Fabric
Make it an elegant entrance in the Priscilla formal satin dress with a curve-hugging mermaid silhouette and floor-sweeping hem for dramatic flair. Fit & FeaturesLined silky satin fabric, minimal stretch, Strapless sweetheart neckline, Pleated, lightly padded bust, non-slip grip lining, Slim-fit bodice, high waist seam, hip-hugging fit, Floor-sweeping hem, mermaid silhouette, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, black-tie galas and events, and fancy milestone celebrations. Free Shipping on All Orders Over $75. | Windsor Priscilla Formal Satin Strapless Mermaid Dress in Sage | Size: L | Satin Fabric
Spend an evening in the timeless elegance of the Alicia floor-length formal dress and feel like a work of art! The side ruched seams accentuate your curves along the mermaid silhouette, and the high front slit adds a touch of drama to the floor-length hem. Fit & FeaturesSmooth knit fabric lined with stretchy knit, Padded bra cups, Back zipper and hook-eye closure, High front slit, Mermaid silhouette, Runs true to size, Where to Wear:Prom, galas, black tie parties, weddings, bridesmaids, nights at the theatre and opera, red-carpets Free Shipping on All Orders Over $75. | Windsor Alicia Off-The-Shoulder Mermaid Formal Dress in Brown | Size: M | Knit Fabric
Flattery will get you everywhere in the Delia formal long dress that boasts a flattering mermaid silhouette with a high front slit for effortless allure all evening! Fit & FeaturesLined smooth knit fabric, moderate stretch, Sleeveless cowl neck, pleating, Spaghetti straps, lace-up back, Mermaid silhouette, High front slit, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, engagement parties, rehearsal dinners, milestone celebrations, dinner parties, and dressy date nights. Free Shipping on All Orders Over $75. | Windsor Delia Formal Cowl Neck Long Dress in Mauve | Size: XL | Knit Fabric
Stun in the Shay formal glitter dress that makes your entrance that much more glam! Shay features a mermaid silhouette that flaunts your beautiful curves and a floor-length hem for a hint of drama. Fit & FeaturesLine glitter lurex fabric, V-neckline, padded bra cups, Adjustable spaghetti straps, Ruching, mermaid silhouette, Wide banded hem, train , Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout , Where to Wear: Prom, black tie galas and events, red-carpet events, upscale birthdays Free Shipping on All Orders Over $75. | Windsor Shay Formal Lurex Glitter Dress in Rose Gold | Size: XS
Prepare to make a grand entrance in the Ashelyn glitter long formal dress looking like a true masterpiece for prom or special birthday events! Her luxurious knit fabric boasts a mesmerizing glitter pattern, while the side ruching and mermaid silhouette accentuate your curves while the high front slit shows off your shoes of the night. The cowl neckline and padded bra cups offer a flattering and comfortable fit. Style this formal gown with glam earrings and a hair accessory for a stunning look all evening! Fit & FeaturesGlitter pattern, knit fabric lined with jersey knit, Padded bra cups, Adjustable spaghetti straps, High front slit, Back zipper and hook-eye closure, Mermaid silhouette, floor-length, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Ashelyn Cowl Neck Glitter Mermaid Formal Dress in Black | Size: XS | Knit Fabric
Sleek and sophisticated! The Emmie satin formal dress exudes elegance with a lace-up back and flattering mermaid silhouette that accentuates your figure. Fit & FeaturesStretchy satin-knit fabric, lined bust, Spaghetti straps, V-neckline, Lace-up back, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, black-tie galas, weddings, bridesmaids, formal parties, and red-carpet events. Free Shipping on All Orders Over $75. | Windsor Emmie Lace-Up Mermaid Satin Formal Dress in Sage | Size: XS | Satin Fabric
Floor Length White Formal Dresses
When it comes to making an entrance, nothing turns heads quite like a floor length white gown. Whether you’re channeling your inner goddess for a gala, floating down the aisle as a bride, or leveling up your look for a formal celebration, white floor length gowns have a way of commanding attention and whispering “main character energy” with every step. These dresses are all about that “can’t stop, won’t stop” confidence—think sweeping silhouettes that trail behind you like a secret, luxe fabrics that catch the light just right, and details that make you feel like you’re walking in your own spotlight. For the Windsor girl who’s never been one to blend in, a white formal dress is your go-to for those big-deal moments: black tie events, milestone birthdays, engagement parties, and even those dreamy nights when you just want to feel untouchable. And let’s not forget the ultimate bestie move—gifting a white floor length gown to your ride-or-die for her graduation, bridal shower, or that “just because you deserve it” moment. There’s something about slipping into a dress that’s equal parts angelic and daring that makes you want to conquer the world (or at least the dance floor).
Choosing the perfect white formal dress is all about embracing your vibe and owning your moment. Picture this: you’re gliding through a candlelit banquet hall, the hem of your dress just skimming the floor, every eye in the room catching the shimmer of sequins or the flow of satin. Or maybe you’re the star of your own rooftop soirée, the city lights reflecting off your crisp white gown as you laugh with your crew, feeling like you could write your own fairy tale. White floor length gowns aren’t just for brides—they’re for anyone who wants to make a statement, whether you’re celebrating a milestone or just living your best life. And if you’re shopping for someone else, these dresses make unforgettable gifts for sisters, besties, or anyone who deserves a little extra glam in their closet. When you’re picking your dream dress, think about the details that make you feel unstoppable: a daring slit, a dramatic train, delicate lace, or a hint of sparkle. Pair your gown with bold accessories or keep it simple and let the dress do all the talking—the choice is yours, and the world is your runway.
For those who love to keep their options open, don’t forget to check out more showstopping looks on our Floor Length Prom Dresses page. Whether you’re planning an epic entrance or just want to feel like royalty for a night, Windsor’s collection of white formal dresses is here to hype you up and make every occasion unforgettable. From secret garden parties to all-night celebrations, these gowns are made for the girls who aren’t afraid to stand out, break the rules, and leave a little sparkle wherever they go. You bring the attitude—we’ll bring the dress that makes you feel invincible.