Long Wedding Guest Dresses
Elevate your wedding guest style with these gorgeous long dresses. Whether you prefer a flattering A-line, dramatic mermaid, or sleek sheath silhouette, these styles feature luxe fabrics like satin, rhinestones, velvet, and glitter knit. Perfect for semi-formal, formal, or black-tie weddings, with stunning details like side slits, low backs, and strappy or strapless necklines. Find your picture-perfect long dress or gown for your upcoming wedding celebration.
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Long Wedding Guest Dresses Made for a Grand Entrance
Long Wedding Guest Dresses bring the drama for fall and winter weddings with sweeping lengths, elegant shapes, and luxe details made for celebrating. From flowing A-line dresses to sleek column and curve-defining designs, Windsor’s collection gives you plenty of ways to go long for formal receptions, holiday weddings, and every dressed-up RSVP this season.
Long Silhouettes from Flowing to Fitted
The best long dresses for wedding guest style balance the impact of the length with a silhouette that feels like you. A-line dresses create graceful movement, while fitted and column shapes offer a sleeker profile. Mermaid Wedding Guest Dresses contour through the bodice and hips before flaring toward the hem for a more dramatic finish.
Modern details give these silhouettes even more personality. Corset bodices and lace-up backs can add structure or adjustability, while ruching and ruffles bring texture and dimension. Cowl, halter, off-the-shoulder, square, V-neck, and sweetheart necklines give you different ways to frame your look.
Floor-Length Wedding Guest Dresses Made to Move
Floor-Length Wedding Guest Dresses may bring the drama, but they should still let you enjoy the celebration. Front, side, or back slits give a long skirt more freedom of movement while creating a stylish reveal of your heels. They can also make the silhouette come alive as you walk, dance, and capture those must-post photos from the celebration.
For a little less length, explore mid-length wedding guest dresses when you want an elevated look that puts more focus on your shoes.
Why Choose a Long Dress for a Fall or Winter Wedding?
Long silhouettes are a natural choice for cooler-season weddings when you want more coverage without giving up a dressed-up look. Satin and lace can transition beautifully through fall, while velvet brings richer texture as winter arrives. Glitter, sequins, rhinestones, and beaded details dial up the festive mood for holiday and New Year’s Eve weddings.
For colder celebrations where you want more arm coverage, long sleeve formal dresses offer another season-ready option. If the invitation calls for an especially elevated dress code, explore formal wedding guest dresses for styles suited to black-tie celebrations.
What Is the Best Long Dress for a Wedding Guest?
Start with the dress code, then consider the venue and overall vibe of the wedding. A flowing A-line dress can complement an outdoor or rustic setting, while a sleek column or mermaid silhouette can match the polished mood of an elegant indoor or city celebration. For formal weddings, look to floor-length styles in luxe fabrics or with refined embellishments to meet the dressier moment.
From softly flowing shapes to fitted statement styles, Windsor’s Long Wedding Guest Dresses give you elegant options for fall, winter, holiday, and New Year’s Eve celebrations.
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Mckayla Formal Scoop Neck Dress
Special Occasion
Sparkly glitter adds a luxe vibe to the glamorous Mckayla formal dress at homecoming dances, galas, and banquets! She features a sleek and classic sleeveless, scoop neckline with bungee spaghetti straps, and an alluring open-back with hook closures. Her shirred ruched bodice leads to a form-hugging, mermaid silhouette, and a floor-sweeping hem. The formal dress is composed of a stretch-knit glitter fabric designed to hug your curves like an hourglass. Complete your dressy look in duster rhinestone earrings and a clutch.
Fit & Features
- Stretch-knit glitter fabric
- Sleeveless scoop neckline, bungee spaghetti straps
- Open-back, hook closures
- Shirred, ruched bodice, form-hugging
- Mermaid silhouette, floor-length hem
- Sticky bra or pasties recommended
- Runs true to size
Style Number/Barcode: 05002-2463
Category Name: Long Wedding Guest Dresses
Price: $19.97 $84.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Rya Formal One Shoulder High Slit Dress
Special Occasion
Bring the elegance with a formal dress that is perfect to wear as a wedding guest or for a formal banquet. Rya features a one-shoulder neckline, a double-row spaghetti strap design, and ruching that runs from the waist. Her high waist leads to an A-line silhouette that features a daring high side slit. The dress is composed of a lined smooth knit fabric that offers a form-hugging fit with a moderate stretch. Includes a mini skirt-length knit lining. Complete look with rhinestone heels and a trendy sphere clutch.
Fit & Features
- Sleeveless, one-shoulder neckline
- Dual spaghetti straps
- Adhesive bra recommended
- High waist seam, ruching, high slit
- Floor-length hem
- Lined smooth knit fabric
- Runs true to size
Style Number/Barcode: 05002-2152
Category Name: Long Wedding Guest Dresses
Price: $14.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Lana Formal Ruched Glitter Mermaid Dress
Special Occasion
There is a certain kind of evening that calls for shimmer in motion. The Lana is crafted from luminous glitter mesh in a sculpted mermaid silhouette, featuring a softly draped neckline and artful ruching at the back that creates a breathtaking finish from every angle.
Fit & Features
- Glitter mesh-lined fabrication high stretch
- Sleeveless v-neckline, padded bra cups
- Adjustable spaghetti straps
- Open back with tie-back detail
- Ruching
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Prom, big milestone celebrations, red carpet occasions, black tie galas, weddings, spring balls
Style Number/Barcode: 05002-001576
Category Name: Long Wedding Guest Dresses
Price: $79.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L
Product Badge:- Ships Free
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Irie Sequin Lace Mermaid Formal Dress
Special Occasion
Designed for evenings that call for polish with presence, the Irie glides with a confident, sculpted ease. Sequin lace shapes a floor-length mermaid silhouette, finished with a V neck and a lace up cutout back that feels refined yet striking.
Fit & Features
- Sequin lace fabric with knit lining
- V-neckline, padded bra cups, adjustable spaghetti straps
- Mermaid floor-length silhouette
- Lace up cutout back with zipper and hook-eye closure
- Runs true to size
Where to Wear:
Prom, big birthday event, formal milestone celebrations, balls, galas, garden parties, special occasion dinner, red-carpet event
Style Number/Barcode: 05002-001527
Category Name: Long Wedding Guest Dresses
Price: $149.90
Availability: In Stock
Available Color: YELLOW
Available Size: M
Product Badge:- Ships Free
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Clyde Formal Crepe Corset Lace Mermaid Dress
Special Occasion
Beautiful and timeless, the Clyde Formal Crepe Corset Lace Mermaid dress enhances your curves on her flattering, strapless corset-style bodice with flexible boning and a romantic lace insert mermaid skirt. She's composed of a crepe-lined fabric with a minimal stretch. Perfect for styling with a satin clutch and statement earrings for prom.
Fit & Features
- Strapless | Corset-style bodice | Flexible boning
- Back zipper closure
- Lace insert mermaid silhouette
- Floor-length hem
- Crepe-lined fabric | Minimal stretch
- Fits true to size
Style Number/Barcode: 05002-2130
Category Name: Long Wedding Guest Dresses
Price: $19.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Clearance
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Gabrielle Formal Rhinestone Long Dress
Special Occasion
Glistening rhinestones elevate the Gabrielle formal dress for your next stunning night out at a banquet or the school dance! She features a sleeveless square neck with a cowl draping, spaghetti straps, a caged back design, and side ruched seams to define your curves along the body-hugging, slim silhouette with a high side slit and long hem. The formal dress is composed of a mesh fabric with a stretchy knit lining. Style with statement earrings and a clutch for a gorgeous look!
Fit & Features
- Sleeveless square neck, cowl draping
- Spaghetti straps, caged back design
- Side ruched seams
- Body-hugging, slim silhouette, high side slit, long hem
- Rhinestone embellishments, mesh fabric, stretchy knit lining
- Sticky bra recommended
- Runs true to size
Style Number/Barcode: 05002-7023
Category Name: Long Wedding Guest Dresses
Price: $9.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Lindsay Double Ruffle Formal Dress
Special OccasionLead the room in timelessly gorgeous ruffles in our Lindsay dress! She features a sleeveless bodice, an off the shoulder neckline and an asymmetrical shallow V neckline bust with a double ruffle detail. Her slim fit bodice leads to an elongating mermaid skirt that highlights curves. She is composed of a black hued crepe fabric that offers a moderate stretch. Includes a back zipper closure.
Model is 5'7 with a 32" bust, 24" waist and 37" hips. She is wearing a size small.Special Occasion products cannot be returned to any retail locations.
Style Number/Barcode: 05002-5602
Category Name: Long Wedding Guest Dresses
Price: $29.97 $66.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Sofie Formal Satin Strapless Long Dress
Special Occasion
This figure-skimming beauty is worthy of a grand debut at banquets, weddings, and dressy celebration parties! The Sofie formal dress features a foldover, strapless neckline, a lightly padded bust, a slim curve-hugging silhouette, and a sultry front slit along her floor-length hem. The formal dress is composed of lined satin fabric with a sheen effect and minimal stretch. Complete the look in statement mules and a clutch.
Fit & Features
- Strapless foldover neckline, light padded bust
- Back zipper and hook-eye closure
- Slim, curve-hugging silhouette
- Front slit, floor-length hem
- Lined satin fabric, minimal stretch
- Bra optional
- Runs true to size
Style Number/Barcode: 05002-7305
Category Name: Long Wedding Guest Dresses
Price: $9.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Sandy Off-The-Shoulder Mesh Formal Dress
Special Occasion
Effortless elegance meets modern allure. The Sandy formal dress is crafted from soft mesh that sculpts and flatters with every curve, featuring an off-the-shoulder neckline, sheer fitted sleeves, and artful ruching through the bodice. The front slit adds that just-right dose of drama—made for nights that deserve a little extra spotlight.
Fit & Features
- Mesh knit-lined stretch fabric
- Foldover off-the-shoulder neckline
- Fitted long sleeves
- High front slit
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Weddings, cocktail receptions, formal dinners, holiday soirees, black-tie galas, big birthday events, glamorous industry parties, red-carpet occasions
Style Number/Barcode: 05002-000532
Category Name: Long Wedding Guest Dresses
Price: $59.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L, XL
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Rosie High-Slit Satin Mermaid Dress
Special Occasion
Sleek and chic, the Rosie satin mermaid dress will have you looking absolutely stunning! She features a sleeveless V-neckline with pleated detailing at the bust, adjustable spaghetti straps, a deep V-back design, and a fitted floor-length mermaid silhouette with a sultry thigh-high front slit. Style this formal dress with rhinestone statement earrings and heels.
Fit & Features
- Sleeveless V-neckline
- Pleated detailing at the bust
- Adjustable spaghetti straps
- Deep V-back design, back zipper and hook and eye closure
- Fitted floor-length mermaid silhouette, front slit
- Satin fabric, moderate stretch
- Runs true to size
Style Number/Barcode: 05002-1508
Category Name: Long Wedding Guest Dresses
Price: $19.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Alex Floral Tie-Back Formal Dress
Special Occasion
Softly sculpted and effortlessly striking, the Alex floral mesh gown is designed for the kind of entrance that feels both graceful and unforgettable. A V-neckline, adjustable spaghetti straps, and an open tie-back frame the silhouette, while princess seams and a mermaid floor-length shape create a beautifully contoured finish.
Fit & Features
- Floral mesh fabric, knit lining
- V-neckline, padded bra cups
- Adjustable spaghetti straps
- Open tie-back, lower zipper and hook-eye closure
- Princess seams down the front
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Prom, weddings, bridesmaids, destination events, engagement parties, formal celebrations
Style Number/Barcode: 05002-001297
Category Name: Long Wedding Guest Dresses
Price: $69.90
Availability: In Stock
Available Color: SAGE, BERRY
Available Size: XS, S, M, L
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Alison Lace-Up Mermaid Sequin Formal Dress
Special Occasion
Make it an evening to remember in the Alison sequin formal dress at prom, galas, or red carpet events! Glistening sequins in a stunning pattern give this formal dress a sparkling allure perfect for standing out. This luxurious dress features a flattering V-neckline and spaghetti straps, while the lace-up open back adds a touch of head-turning elegance. The mermaid silhouette and floor-length hem create a graceful and captivating look, adorned with a lavish sequin embellished pattern. Complete the look in a gorgeous jewelry set and heels.
Fit & Features
- Sequin embellished pattern, mesh fabric lined with stretchy knit
- Spagehtti straps,
- Lace-up open back, zipper and hook-eye closure
- Mermaid silhouette
- Sticky bra or pasties recommended
- Runs true to size
Style Number/Barcode: 05002-7943
Category Name: Long Wedding Guest Dresses
Price: $49.97 $99.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Peyton One Shoulder Crepe Dress
Special Occasion
Make a dramatic entrance with a formal dress that brings regal appeal. The dress features a one-shoulder neckline with a tank-like shoulder strap, a high side slit, and a draped panel at the side. The dress is composed of a crepe fabric that offers a form-hugging fit with a moderate stretch. Complete look with rhinestone heels.
Fit & Features
- One-shoulder neckline
- High side slit
- Draped panel at side
- Lined crepe fabric
- Form hugging fit, moderate stretch
- Runs true to size
Style Number/Barcode: 05002-1336
Category Name: Long Wedding Guest Dresses
Price: $14.97 $54.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Lydia Asymmetrical Formal Dress
Special Occasion
Sultry and striking, the Lydia formal dress is perfect for those babes who like to bring the bold vibes. She features a sleeveless asymmetrical one-shoulder neckline, a single spaghetti strap, dual waist cutouts, and a curve-hugging floor-length silhouette with ruching leading to an asymmetrical high side slit. Style this dress with a rhinestone necklace and strappy stilettos.
Fit & Features
- Sleeveless asymmetrical one-shoulder neckline, single spaghetti strap
- Strapless or adhesive bra recommended
- Dual waist cutouts
- Side ruched detailing
- Fitted floor-length silhouette, asymmetrical side slit
- Smooth sateen fabric
- Form-hugging fit, moderate stretch
- Runs true to size
Style Number/Barcode: 05002-2081
Category Name: Long Wedding Guest Dresses
Price: $19.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Trixie Formal Satin A-Line Dress
Special Occasion
Make a striking impression in the Trixie formal dress at balls and banquets! She features a sleeveless sweetheart neckline with a cowl pleated bust, halter spaghetti straps, a lace-up back design, and a flattering A-line silhouette showcasing a sultry high-cut slit along her floor-length hem. The formal dress is composed of a smooth and silky satin fabric with a subtle sheen. Style with a beaded clutch and heels to complete the look!
Fit & Features
- Sleeveless sweetheart neckline, cowl pleated bust
- Lace-up back design, tie closure
- A-line silhouette
- High-cut slit, floor-length hem
- Smooth, silky satin fabric with a subtle sheen, lined bust
- Moderate stretch
- Sticky bra recommended
- Runs true to size
Style Number/Barcode: 05002-2636
Category Name: Long Wedding Guest Dresses
Price: $9.97 $89.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Clearance
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Selena High-Slit Satin Formal Dress
Special Occasion
Make a sleek and stylish statement in the stunning Selena satin formal dress! She features a trendy sleeveless cowl neckline, dual spaghetti straps that lead to a cross-back design, a high waist seam, and a floor-length, fitted silhouette with a sultry thigh-high front slit. The satin-knit fabric offers a moderate stretch. Complete the look with a pair of chic strappy heels.
Fit & Features
- Sleeveless cowl neckline, dual spaghetti straps
- Cross-back design
- High waist seam
- Floor-length hem, fitted silhouette, high front slit
- Satin knit fabric, knit lining at the bust, moderate stretch
- Strapless or sticky bra recommended
- Runs true to size
Style Number/Barcode: 05002-1418
Category Name: Long Wedding Guest Dresses
Price: $14.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Kenia Formal Satin Halter Long Dress
Special Occasion
Sophisticated and undeniably elegant doesn't even begin to describe how you'll look in the Kenia formal dress! Make an entrance at school dances, charity dinners, or wedding ceremonies. She features a sleeveless halter square neckline, open-back, a form-hugging mermaid silhouette, and a sexy high-cut front slit along her floor-length hem. The formal dress is composed of a buttery smooth silky satin-lined fabric with minimal stretch. Complete the look with a rhinestone bracelet and clutch.
Fit & Features
- Sleeveless halter square neck, open back
- Form-hugging mermaid silhouette
- High-cut front slit
- Floor-length hem
- Lined satin fabric, minimal stretch
- Sticky bra recommended
- Runs true to size
Style Number/Barcode: 05002-6897
Category Name: Long Wedding Guest Dresses
Price: $19.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Aliyah Formal Sequin Lace Back Dress
Special Occasion
Enchant at the prom in the Aliyah formal sequin dress perfect for making a dazzling grand entrance. She features a sleeveless, v-neck, sleek adjustable straps, and a built-in padded bust. Her form-fitting bodice leads to an alluring open-back with strappy detail and zipper closure. Her floor-length mermaid silhouette is designed to flatter every figure. The formal dress is composed of a sequin embroidered fabric with an inner lining and no stretch. Complete the look with a chic clutch.
Fit & Features
- Sleeveless, v-neck, adjustable spaghetti straps
- Built-in padded bust, adhesive bra recommended
- Form-fitting bodice, strappy open-back, zipper closure
- Mermaid silhouette
- Floor-length hem
- Sequin embroidered fabric, lining, no stretch
- Fits true to size
Style Number/Barcode: 05002-2317
Category Name: Long Wedding Guest Dresses
Price: $19.97 $139.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Clearance
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Arial Open Back Mermaid Formal Dress
Special Occasion
Made for jaw-dropping arrivals, the Arial formal dress sculpts and stuns in smooth knit with a one-shoulder neckline, ruched detailing, and a striking open back twist. Its mermaid silhouette and floor-length hem bring full-glam drama—no effort required.
Fit & Features
- Smooth knit fabric with lining, moderate stretch
- One-shoulder neckline
- Side ruched seams
- Open back with twist detail
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Weddings, black tie galas, rehearsal dinners, engagement parties, anniversaries, formal soirees, nights at the opera or theatre, red carpet occasions
Style Number/Barcode: 05002-000371
Category Name: Long Wedding Guest Dresses
Price: $59.90
Availability: Out of Stock
Product Badge:- Ships Free
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Bryn Chiffon A-Line Formal Dress
Special Occasion
Get a stunningly beautiful look in our chic Bryn chiffon formal dress. She features a wrap front V neck and back with a back button closure, long sheer blouson sleeves with button detailing, a high elastic banded waist with a tie detail, and a flowy, floor-length A-line silhouette. The dress is composed of a sheer chiffon fabric with no stretch and with a short knit lining. Complete your outfit with a sleek ring set and strappy heels.
Fit & Features
- Wrap front V neck and back
- Back button closure
- Long blouson sleeves with button detailing
- High rise waist with a tie detail
- Flowy A-line silhouette
- Sheer chiffon fabric with no stretch
- Short knit lining
Style Number/Barcode: 05002-0689
Category Name: Long Wedding Guest Dresses
Price: $29.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Winona Halter Mermaid Dress
Special Occasion
Sleek and stunning will be your vibe in the Winona formal dress. Crafted with smooth and stretchy knit, it features a chic square neckline, tie-back halter straps, and a floor-length mermaid silhouette to hug your curves.
Fit & Features
- Sleek knit fabric with full-length knit lining, high stretch
- Sleeveless square neckline
- Ruched detailing, padded bust
- Tie-back halter straps, partially open back
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Weddings, rehearsal dinners, receptions, black-tie parties, galas, dressed-up dinners, formal date nights, and chic soirees.
Style Number/Barcode: 05002-001832
Category Name: Long Wedding Guest Dresses
Price: $69.90
Availability: In Stock
Available Color: TEAL
Available Size: L
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Carol Sleeveless Slit Mermaid Formal Dress
Special Occasion
Chic and sophisticated, the Carol mermaid formal dress brings the class to banquets and black-tie parties. The classic crepe fabric includes a full-length knit lining and offers moderate stretch. Adorned with a pleated square neckline that accentuates your curves, delicate spaghetti straps, and a sultry high front slit, this floor-length dress boasts a mermaid silhouette that will turn heads. Complete the look in sleek stiletto heels.
Fit & Features
- Crepe fabric with knit lining, moderate stretch
- Spaghetti straps
- Pleated square neckline
- Mermaid silhouette
- High front slit
- Sticky bra or pasties recommended
- Runs true to size
Style Number/Barcode: 05002-8502
Category Name: Long Wedding Guest Dresses
Price: $29.97 $59.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Jill Formal Mesh Bustier Slim Long Dress
Special Occasion
A sheer bustier-style bodice on the Jill formal dress snatches your figure to create a sexy look! She features a sweetheart neckline, adjustable spaghetti straps, a pleated built-in padded bust with underwire support, a sheer bodice with flexible boning inserts, and a flattering slim silhouette and high front slit along her floor-length hem. The formal dress is crafted from a mesh fabric for a refreshed dressy style and has a stretchy knit lining. Complete your look for black tie galas or celebrations with a stunning hair accessory.
Fit & Features
- Sleeveless sweetheart neckline
- Adjustable spaghetti straps
- Pleated built-in padded and underwire bust
- Sheer bodice, flexible boning, back zipper and hook-eye closure
- Slim silhouette, high front slit, floor-length hem
- Mesh fabric, stretchy knit lining
- Runs true to size
Style Number/Barcode: 05002-7662
Category Name: Long Wedding Guest Dresses
Price: $29.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Amelia Formal High Slit Satin Dress
Special Occasion
Elevate your evening look with our captivating Amelia dress! She features a sleeveless bodice, a plunging wrap V neckline with pleated overlay accent and spaghetti straps that lead to a square back. Her slim fit bodice leads to a floor length slim fit silhouette with a high side slit. Dress is composed of a lined stretchy satin fabric that offers a form hugging fit with a moderate stretch. Includes a back zipper closure with hook and eye fasten.
Model is 5'9" with a 34" bust, 24" waist and 34.5" hips. She is wearing a size small
Special Occasion products cannot be returned to any retail locations.
Style Number/Barcode: 05002-0434
Category Name: Long Wedding Guest Dresses
Price: $27.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free