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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Radiate Fairy-Tale Magic in Our Apple Green Lace GownStep into a woodland dream with the KSP533. Thi..
£99.00
Ex Tax: £99.00
Illuminate the Night in Our Emerald Green Sequined GownMake a high-fashion statement with the KSP622..
£130.00 £117.00
Ex Tax: £117.00
Exude Regal Charm in Our Purple Appliqued Long GownMake a grand entrance with the KSP635. This long ..
£120.00
Ex Tax: £120.00
The beautiful long prom dresses in color same as sunset in maxi dress style, with this ombre prom dr..
£128.50 £118.15
Ex Tax: £101.00
Step Into Luxury with Our Bedazzled Grey Cape GownRedefine red-carpet elegance with the KSP613. This..
£238.00
Ex Tax: £238.00
Command the Room in Our Bedazzled Grey Cloak GownRedefine formal glamour with the KSP601. This long ..
£170.00
Ex Tax: £170.00
Sparkle Like a Star in Our Pink Bedazzled GownOwn the night with the KSP600. This long pink prom dre..
£101.00
Ex Tax: £101.00
Embrace Enchantment in Our Blue Gradient Lotus Ball GownTransform your prom night into a fairytale w..
£117.00
Ex Tax: £117.00
Command Attention in Our Jewel Tone Twinkling Lace GownEmbrace sophisticated glamour with the KSP543..
£120.00
Ex Tax: £120.00
Exude Regal Glamour in Our Patterned Blue Off-Shoulder GownRedefine sophistication with the KSP607. ..
£160.00
Ex Tax: £160.00
Make waves at your formal event in our Mermaid Core Blue Ombre One-Shoulder Prom Dress. This et..
£99.00
Ex Tax: £99.00
Shine Like a Star in Our Bluish Gray Sequin GownCaptivate the crowd with the KSP587. This bluish gra..
£114.00
Ex Tax: £114.00
Embrace Golden Hour Glamour in Our Brown Golden Corset GownStep into the spotlight with the KSP603. ..
£107.00
Ex Tax: £107.00
Radiate Pure Opulence in Our Champagne Sequined Cape GownDiscover the epitome of luxury with the KSP..
£190.00
Ex Tax: £190.00
Define Modern Sophistication in Our Double Strap Satin GownEmbrace a sleek, red-carpet look with the..
£107.00
Ex Tax: £107.00
Elegant and ethereal formal yellow prom dresses, features  bonde bodice, built-in bra for suppo..
£110.00
Ex Tax: £110.00
Step into elegance with our Emerald Green Strappy Prom Dress. This timeless A-line gown is crafted f..
£92.00
Ex Tax: £92.00
Step into a Fairytale with Our Gold Sequin Cloak GownMake a grand, unforgettable entrance with the K..
£220.00
Ex Tax: £220.00
Embrace Ethereal Charm in Our Floral Beaded Pastel GownStep into a world of magic with the KSP602. T..
£115.00
Ex Tax: £115.00
Transform your prom night into a fairytale with our Floral Sheer Corset Ball Gown. This breathtaking..
£139.00
Ex Tax: £139.00
Classic Elegance with a Modern Twist: Our Light Blue Pocket GownDiscover the beauty of simplicity wi..
£99.00
Ex Tax: £99.00
Illuminate the Night in Our Champagne Sequined GownRadiate timeless glamour with the KSP611. This li..
£117.00 £115.85
Ex Tax: £99.00
Make a Bold Statement in Our Ruby Red Beaded GownRedefine elegance with the KSP608. This long beaded..
£119.00
Ex Tax: £119.00
Exude Dark Elegance in Our Black Sequin Sweetheart GownRedefine sophistication with the KSP166. This..
£108.00 £96.00
Ex Tax: £96.00
Showing 49 to 72 of 402 (17 Pages)
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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