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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Blue and white color are all quiet color, they two together emphasis your elegance,tunic waistline,f..
£91.00
Ex Tax: £91.00
Black chiffon sweetheart upper, teal soft tulle bottom gowns, contrast color,contrast material, fash..
£108.61 £99.00
Ex Tax: £99.00
This dress looks very charming. Lace and bowknot are all token of feminine,they can shows the fascin..
£112.00 £96.00
Ex Tax: £96.00
Off-the-shoulder with half sleeves, this special design neckline make this formal dress popular for ..
£92.00
Ex Tax: £92.00
Gorgeous long Aline dresses for formal party. The beaded cap sleeves and rhinestone belt make this d..
£112.00 £99.00
Ex Tax: £99.00
The crystals and beadings on the top with both side cut out easily avoid bore, with teal chiffon ful..
£102.00
Ex Tax: £102.00
There is no extra decoration on this dress, it is the dress, in princess style, elegant and beautifu..
£92.00
Ex Tax: £92.00
Ruffles on the pleated v-neck, deep v-neck frilled back make this dress romantic and modern. this wr..
£88.00 £86.00
Ex Tax: £86.00
Two pieces formal dress with two different blue color, avoid boring,show little shoulder, no other d..
£97.89 £92.00
Ex Tax: £92.00
Lace is the trends of 2014,lace decorated and a belt, people's eyes will be attached at your top bod..
£107.00 £93.00
Ex Tax: £93.00
Embroided top, high waist with sash belt, sheath column skirt, this beautiful mermaid dresses can be..
£92.00
Ex Tax: £92.00
The same color lace and chiffon mix and match together at top, features pleated chest area, sheer ba..
£92.00 £85.00
Ex Tax: £85.00
Jewel decorated top,cinched waist band, flare skirts plus see through back, elegant and sexy, perfec..
£102.00
Ex Tax: £102.00
This black formal prom dress is so charming, simple and elegant clipping, show body curve perfectly...
£87.00
Ex Tax: £87.00
Beautiful neckline,with two colors matching together, this bohemia style dress is perfect for brides..
£85.00
Ex Tax: £85.00
Lace up back, easy to fit; off the shoulder, cap sleeves design, easy to hold, safe to fat chest gir..
£92.00
Ex Tax: £92.00
Special designed straps with the same material as the sash.The same color showd in chiffon and satin..
£98.00 £88.00
Ex Tax: £88.00
The spotlight of this dark purple dress is the removable lace vest on the shoulder, it is perfect fo..
£94.00
Ex Tax: £94.00
Round neckline front connect to open back,bodycon shape stretch dress for girls on the wedding, beau..
£80.00
Ex Tax: £80.00
Asymmetrical is the character of this white prom dress, single shoulder, high side slit all theses m..
£91.00
Ex Tax: £91.00
The spaghetti straps together with drapes shoulder make this dress a romantic and comfortable to wea..
£92.00 £89.00
Ex Tax: £89.00
Comfortable chiffon bridesmaid dresses for pregnant bridesmaid. Wide straps from front to back offer..
£92.00 £88.00
Ex Tax: £88.00
This exquisite dress is perfect for a wedding party or any special occasion, features bow details at..
£97.00 £88.00
Ex Tax: £88.00
Sequin tank straps, sweetheart shape bust area,rhinestone decorated belt, this sparkle dress will be..
£94.00
Ex Tax: £94.00
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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
The beautiful long prom dresses in color same as sunset in maxi dress style, with this ombre prom dr..
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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..
Special price:£119.00
Old price:£140.00
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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...
Special price:£127.00
Old price:£138.00
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