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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Everyone wants to be the most beautiful angel, have their own the most flattering, dance, no reserva..
£108.61 £83.00
Ex Tax: £83.00
A eye-catching red colored one shoulder prom dress or evening dress, the waist part decorated with b..
£108.61 £87.00
Ex Tax: £87.00
A decent one shoulder chiffon prom dress, formal dress, which you can change color to what your like..
£108.61 £98.00
Ex Tax: £98.00
It's a sexy and gorgeous v-neck evening dress, exquisite waist and neckline design. You will be in t..
£115.12 £80.00
Ex Tax: £80.00
The chiffon prom dress with flowly streamer and sparkling chatelaine catch his eyes, on that day, yo..
£108.61 £99.00
Ex Tax: £99.00
Personality and chic one sleeve prom or evening dress, easy to decorate your beautiful shoulders, ex..
£108.61 £98.00
Ex Tax: £98.00
It's fashionable waist design showed your good body figure and revealed your sweetness, your fair la..
£108.61 £100.00
Ex Tax: £100.00
The strapless beaded dress, fantastic purple color and the soft tulle win more head turn for you, we..
£119.47 £108.00
Ex Tax: £108.00
We have an sensational collection of long prom dresses and sexy evening gowns with guaranteed low pr..
£102.10 £93.00
Ex Tax: £93.00
This evening gown for wedding parties, formal events, or prom featuring a sparkling embellished halt..
£104.27 £95.00
Ex Tax: £95.00
This stunning long dress features a special off the shoulder style, it is an elegant long chiffon dr..
£97.75 £88.00
Ex Tax: £88.00
Goddess style cut,flowers decorated shoulder and back strap.Pleated at the top with long train, so e..
£98.00 £88.00
Ex Tax: £88.00
Sexy one shoulder design, fashion and noble, with pure manual bright diamond, perfectly show the cha..
£108.61 £87.00
Ex Tax: £87.00
As noble angel, as beautiful princess, deep v-neck with manual sequins let luxury upgrade again, red..
£108.61 £99.00
Ex Tax: £99.00
The popular halter neckline is accented with beads and crystals on the front and back. A slim skirt ..
£108.61 £89.00
Ex Tax: £89.00
It's a sexy deep v-neck sequined halter and open back dress, which you can used on any occasion, suc..
£108.61 £86.00
Ex Tax: £86.00
Yearn for grace melody? This butterfly type beaded shoulder dress will be a good choice, have it imm..
£108.61 £88.00
Ex Tax: £88.00
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Deals Of The Day
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...
Special price:£95.00
Old price:£120.00
You save:£25.00
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..
Special price:£118.15
Old price:£128.50
You save:£10.35
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
You save:£21.00
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
You save:£12.00
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
You save:£11.00
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