Long Prom Dresses: Elegant Floor-Length & Maxi Styles

Make a grand entrance in our breathtaking collection of long prom dresses. From the timeless volume of a floor-length ball gown to the sleek silhouette of a maxi evening dress, our range is designed to provide maximum glamour. Whether you are looking for long-sleeved lace or a flowing chiffon A-line, our free custom-made service ensures your gown is tailored to your exact height, giving you the perfect 'hollow-to-hem' fit.

▼ Styling Guide: Choosing the Perfect Long Gown

Trending Long Silhouettes: Ball Gowns, A-Lines, and Sheaths

Long prom dresses are the ultimate symbol of formal sophistication for UK Year 11 and Year 13 proms. For 2026, the trends favor full-length ball gowns with dramatic skirts and minimalist satin maxi dresses that offer a sleek, modern look. Whether you prefer the romanticism of long lace gowns or the sparkle of a sequined floor-length dress, a long silhouette provides a statuesque appearance that photographs beautifully from every angle.

The Perfect Length with Free Custom Tailoring

The biggest challenge with floor-length gowns is getting the length exactly right to match your height and your heels. A dress that is too long can be difficult to walk in, while one that is too short loses its formal impact. At HappyProm, we offer free custom sizing, including a specific 'hollow-to-hem' measurement. This ensures your made-to-measure long dress hits the floor at the perfect point, allowing you to move with confidence and grace all night long.

Quality Craftsmanship & Reliable UK Delivery

Our long formal dresses are crafted from premium fabrics such as multi-layered tulle, heavy-weight satin, and delicate chiffon. As a trusted UK-based prom store, HappyProm combines affordable prices with high-end craftsmanship. With fast UK delivery and a dedicated support team, we make finding your dream full-length gown easy and stress-free. Explore our 2026 collection today and find the perfect long dress for your milestone event.

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Sequin straps cross together at the back embellish the back of the dress,empire waist for most body ..
£89.00 £82.00
Ex Tax: £82.00
Take this blue look to the next level in this eye-catching prom dress.Halter style features sparklin..
£108.61 £91.00
Ex Tax: £91.00
Dark blue prom dress, looks very stable. Collar and waist are full of beads. Shining. If you wear th..
£108.61 £98.00
Ex Tax: £98.00
Beaded bust line and empire waistline, open back, classic style of prom, it will never out of trend...
£102.00 £90.00
Ex Tax: £90.00
This dress is simple at the front, just sweetheart and pleated, but it can also be sexy at the back ..
£89.00
Ex Tax: £89.00
This elegant long formal dress features a strapless hand pleated sweetheart bodice that wraps around..
£93.41 £83.00
Ex Tax: £83.00
Yellow evening dress, bright colors. And waist straps are decorated full of exquisite beads, straps ..
£123.82 £112.00
Ex Tax: £112.00
Beautiful embroidery on the top decorated with sequin, irregular twinkle at the bottom made of Georg..
£150.00 £137.00
Ex Tax: £137.00
Sweetheart neckline with the breathtaking sequin embellishment on the bodice, ruching at the empire ..
£99.00
Ex Tax: £99.00
Empire is perfect for pear shaped body,belt under the bust length the leg,one strp is the focal poin..
£115.00 £87.00
Ex Tax: £87.00
The perfect combination of one strap and sweetheart neckline,this dress is good for both flat and bi..
£97.00
Ex Tax: £97.00
White flowers applique decorated top, skirts flare out from waist; tie up back, more extra size room..
£94.79
Ex Tax: £94.79
This dress looks very girly, the pink color, decorated with gold sequin straps, cross at the back, s..
£90.00
Ex Tax: £90.00
Slim cut design, making the whole prom dress very elegant. Decorated with beads waist belt full of b..
£108.61 £97.00
Ex Tax: £97.00
This point of this long prom dress is the large area beading on the chest and ruffle timeless style ..
£99.00
Ex Tax: £99.00
This halter illusion sexy open back prom dress with sweetheart neckline inner layer and round neckli..
£94.00
Ex Tax: £94.00
Ruched slim top body with eye-catching gold sequin from front to back,this dark green prom dress esc..
£89.00
Ex Tax: £89.00
Adorned with exquiste Beading on the bodice,empire slim fitting,skirts gathering at the waist and lo..
£94.00
Ex Tax: £94.00
The dress is made from gray chiffon. Heart-shaped chest line design, the decorative beads, looks lik..
£94.00 £90.00
Ex Tax: £90.00
This prom dress is so fashionable, with two bold colors, and lace decorated one shoulder, Greek godd..
£95.00
Ex Tax: £95.00
This dress looks so classic in the front, but when eyes change to the back,a big surprise.3/4 sleeve..
£108.00 £103.00
Ex Tax: £103.00
Simple and slim top bodice,skirt flares out at the mid-thigh in light color,elegance in the low key...
£98.00 £89.00
Ex Tax: £89.00
Blue chiffon dress, strapless design, heart-shaped bust line, the middle is decorated with a diagona..
£108.61 £99.00
Ex Tax: £99.00
The elegance cap sleeve,the Grecian Goddess character,twist sweetheart chest area, good friend of av..
£107.00 £93.00
Ex Tax: £93.00
Showing 289 to 312 of 406 (17 Pages)
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Sexy Sparkly Plunging V-Neck Dark Grey Prom Dress with Slit KSP491
Embrace Modern Sophistication in Our Dark Grey Sparkly GownRedefine evening glamour with the KSP491...
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Beautiful Sunset Long Ombre Cape Prom Dresses KSP421
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Black Crystal Embellished Halter A-Line Prom Dress KSP541
Step Into Elegance with Our Crystal Halter A-Line GownDiscover the perfect blend of modern sparkle a..
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Floral Embellished Sheer Corset Prom Gown - Sweetheart A-line Champagne Gold Tulle Gown KSP655
Make a dazzling entrance at your next big event with our KSP655 floral embellished prom gown. This s..
Special price:£138.00
Old price:£150.00
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Lilac Purple Applique Corset Mermaid Prom Dress KSP632
Define Your Curves in Our Lilac Applique Mermaid GownMake an unforgettable entrance with the KSP632...
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