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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Steal the Limelight in Our Red Sparkle Sequin GownRadiate confidence and glamour with the KSP580. Th..
£140.00 £120.00
Ex Tax: £120.00
Command the Red Carpet in Our Luxury Beaded Train GownElevate your evening to legendary status with ..
£230.00
Ex Tax: £230.00
Capture the magic of a starlit night in our Mist Blue Shimmery Prom Gown. This enchanting dress is c..
£130.00
Ex Tax: £130.00
This long prom dress features a sheer top decorated with sequin, beading and rhinestone in shape of ..
£115.00
Ex Tax: £115.00
Set the floor on fire with our Red Fitted Long Prom Dress. This striking bodycon silhouette is desig..
£137.00 £117.00
Ex Tax: £117.00
Embody High-Fashion Radiance in Our Champagne Brown Bustier GownRedefine evening glamour with the KS..
£110.00
Ex Tax: £110.00
Exude Timeless Sophistication in Our Grey Beaded Halter GownRedefine evening elegance with the KSP27..
£135.40
Ex Tax: £116.00
Embrace Modern Sophistication in Our Dark Grey Sparkly GownRedefine evening glamour with the KSP491...
£120.00 £95.00
Ex Tax: £95.00
Embody Angelic Elegance in Our White Embellished Slit GownRadiate pure, timeless beauty with the KSP..
£117.00 £115.85
Ex Tax: £99.00
Shine with Modern Elegance in Our White Sequin V-Neck GownMake a breathtaking entrance with the KSP5..
£130.00 £102.00
Ex Tax: £102.00
Step Into Elegance with Our Crystal Halter A-Line GownDiscover the perfect blend of modern sparkle a..
£140.00 £119.00
Ex Tax: £119.00
Command the Night in Our Black Lace Mesh Mermaid GownEmbrace the allure of high-fashion drama with t..
£115.00
Ex Tax: £115.00
Define Elegance in Our Blush Pink Lace Mermaid GownCapture every heart and camera lens with the KSP5..
£102.00
Ex Tax: £102.00
Embrace Goddess Glamour in Our Burgundy Chiffon GownRadiate effortless beauty with the KSP523. This ..
£109.00
Ex Tax: £109.00
Step Into the Glow with Our Candy Pink One-Shoulder GownRadiate charm and high-fashion energy with t..
£108.00
Ex Tax: £108.00
Exude Timeless Radiance in Our Champagne Glitter GownShine with understated luxury in the KSP594. Th..
£150.00
Ex Tax: £150.00
Embrace Golden Hour Glamour in Our Tie-Strap Glitter GownRadiate elegance and ethereal charm with th..
£102.00
Ex Tax: £102.00
Step Into the Limelight in Our Champagne Sequin GownRedefine red-carpet glamour with the KSP254. Thi..
£109.00
Ex Tax: £109.00
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Long dark blue cold-shoulder ball gown with lace appliques and structured corset bodice KSP530
Long dark blue cold-shoulder ball gown with lace appliques and structured corset bodice KSP530
Exude Regal Glamour in Our Dark Blue Corset Ball GownMake a grand, unforgettable entrance with the K..
£130.00 £150.00
Ex Tax: £150.00
Embody Royal Elegance in Our Pink Satin Halter Ball GownMake an unforgettable entrance with the KSP5..
£107.00
Ex Tax: £107.00
Make a high-fashion statement with our Sparkle effect Metallic Purple Halter Prom Dress. T..
£122.70
Ex Tax: £122.70
Channel Goddess Vibes in Our Royal Blue A-Line GownMake a radiant statement with the KSP528. This ro..
£99.00
Ex Tax: £99.00
Embrace High-Fashion Drama in Our Ruby Red Feather GownCommand the room with the KSP629. This ruby r..
£127.00 £117.00
Ex Tax: £117.00
Adjustable thin straps cross over at the back, with scoop neck, perfect combination to show off beau..
£102.00
Ex Tax: £102.00
Showing 73 to 96 of 401 (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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