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.

Show:
Sort By:
This simple wedding dress is the perfect combination of flowers,sequins,spaghetti, better for rustic..
£109.00 £97.00
Ex Tax: £97.00
Embody Sophisticated Radiance in Our Light Champagne GownDiscover the ultimate blend of modern simpl..
£120.00 £93.00
Ex Tax: £93.00
A beautiful princess ball gowns, several bones corset top, lace up back, decorated with glitter sequ..
£104.00
Ex Tax: £104.00
The extra beading shaped round neckline and back straps,the tunic waistline, the full length in Alin..
£94.00 £97.00
Ex Tax: £97.00
Sequin illusion bateau neckline, cut out back, pleated bust, this dress is so gorgeous for junior an..
£94.00
Ex Tax: £94.00
Bright color orange and yellow, this dress is the spark of these two color collide.With flowers on t..
£102.00 £92.00
Ex Tax: £92.00
Define Modern Elegance in Our Burgundy Cold-Shoulder GownElevate your bridal party style with the KS..
£92.00 £87.00
Ex Tax: £87.00
The point of this long dress is the beautiful see through floral lace back.If you have confidence ab..
£93.00
Ex Tax: £93.00
The elegance color navy blue plus Chinese style embroidery,flowing skirt,exquisite shape of embroide..
£133.00 £125.00
Ex Tax: £125.00
Embody Refined Sensuality in Our Blue High Neck Gown Redefine elegance with the KSP368. This blue lo..
£92.00 £87.00
Ex Tax: £87.00
Flowing chiffon in high low length between in and out, high side slit on the out layer, to create li..
£87.00
Ex Tax: £87.00
Embrace Breezy Romance in Our Mint Green Braided GownDiscover the perfect blend of artisanal detail ..
£93.41 £88.00
Ex Tax: £88.00
Embody Goddess Grace in Our Mint Green Empire Waist GownDiscover the ultimate silhouette-enhancing d..
£93.00
Ex Tax: £93.00
Achieve Statuesque Elegance in Our Navy Minimalist GownRedefine modern formal wear with the KSP337. ..
£92.00 £88.00
Ex Tax: £88.00
Make a Red-Carpet Entrance in Our Strapless Pleated GownElevate your evening presence with the KSP33..
£92.00 £88.00
Ex Tax: £88.00
Embrace Classic Sophistication in Our Navy Sweetheart GownRedefine elegance with the KSP334. This na..
£92.00 £88.00
Ex Tax: £88.00
Celebrate Romance in Our Orchid Pink Halter GownMake your special moments unforgettable with the KSP..
£91.00
Ex Tax: £91.00
Embellished top with halter neckline, sequin decorated waistline and open back, aline silhouette, th..
£98.00
Ex Tax: £98.00
The Ultimate Romantic Choice: Pink Lace Long Bridesmaid DressCreate unforgettable wedding memories w..
£94.00 £92.00
Ex Tax: £92.00
Sparkle jeweled swirl top, cinched waistline, flare skirt, in the red color, gorgeous and beautiful...
£110.00
Ex Tax: £110.00
This open back floor length evening dress features plenty of crystal rhinestone, red beadings and se..
£110.00 £97.00
Ex Tax: £97.00
Steal the Spotlight in Our Dramatic Red Layered Trumpet GownUnleash your inner superstar with the KS..
£97.00 £87.00
Ex Tax: £87.00
Master the Art of Understated Luxury in Our Peacock GownRedefine your formal wardrobe with the KSP17..
£96.00 £89.00
Ex Tax: £89.00
Crosses pleated at the bust area to plump up your chest. With the help of lace round neckline expose..
£115.00 £99.00
Ex Tax: £99.00
Showing 193 to 216 of 406 (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
Happyprom © 2026