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:
Step into a floral dream with our Orange Tulle 3D Flower Prom Gown. This enchanting princess-style d..
£137.00
Ex Tax: £137.00
Make an unforgettable entrance in our Appliqued and Beaded V-Neck Long Light Blue Prom Dress (KSP606..
£137.00
Ex Tax: £137.00
Make a bold statement at your next formal event with our stunning Electric Blue Sheer Corset Prom Dr..
£136.00
Ex Tax: £136.00
Step into a fairytale with our Light Blue Off-the-Shoulder Mermaid Prom Dress. This exquisite gown f..
£137.00
Ex Tax: £137.00
Embrace your inner enchantress in our Light Purple Sheer Corset Prom Gown (Light purple is the "New ..
£150.00
Ex Tax: £150.00
Radiate sunshine at your special event in our Light Yellow A-Line Prom Dress. This charming gown fea..
£118.00
Ex Tax: £118.00
Embrace your inner whimsical side with our Lilac One-Shoulder Layered Tulle Prom Dress. This enchant..
£137.00
Ex Tax: £137.00
Experience pure elegance in our Peach Floral Satin Princess Gown. This sophisticated floor-length dr..
£137.00
Ex Tax: £137.00
Channel your inner royalty with our Princess Red Prom Gown. This breathtaking ball gown features a c..
£127.00
Ex Tax: £127.00
Float through the night in our Sapphire Blue Tulle Prom Dress. This ethereal floor-length gown featu..
£137.00
Ex Tax: £137.00
Make a grand entrance with this elegant black A-line prom dress. Featuring delicate spaghetti straps..
£155.00 £135.00
Ex Tax: £135.00
Step into the spotlight with our Coquette Aesthetic: Sparkling Pink Sequined Prom Gown. Th..
£149.00
Ex Tax: £149.00
"Command the room in our Sunflower Yellow Mermaid Prom Dress. This show-stopping gown features a sle..
£117.00
Ex Tax: £117.00
Step into your prom night with red-carpet confidence in our KSP696 Sweetheart A-Line Gown. This..
£127.00
Ex Tax: £127.00
Blossom with confidence in our Floral Embroidery A-Line Prom Gown. This exquisite floor-length maste..
£112.00
Ex Tax: £112.00
Command the room in our Hot Pink Mermaid Prom Dress. This vibrant gown features a structured bustier..
£118.61
Ex Tax: £118.61
Dazzle the crowd in our Red Sequined Mermaid Prom Dress. This show-stopping gown is covered in shimm..
£138.61
Ex Tax: £138.61
Embrace timeless elegance with our Off-Shoulder Satin Sheath Prom Dress. This sophisticated floor-le..
£108.00
Ex Tax: £108.00
Command the room in the ultimate "Quiet Luxury" statement. This Emerald Green Satin Gown is designed..
£129.00 £99.00
Ex Tax: £99.00
Stop traffic in the color of the season. The KSP668 isn't just a dress; it’s a high-fashion statemen..
£123.00
Ex Tax: £123.00
The Ultimate Fairytale Moment Make an unforgettable entrance at your 2025 formal in our Girly Pink ..
£117.00
Ex Tax: £117.00
Step into your own modern-day fairytale with the KSP643. Designed for the 2026 prom-goer who balance..
£127.00 £120.00
Ex Tax: £120.00
Turn heads at your formal in our stunning Pink Mermaid Prom Dress. This elegant gown features a dari..
£102.00
Ex Tax: £102.00
Embrace Romance in Our Rose Pink Appliqued Halter GownStep into the spotlight with the KSP648, a mas..
£124.00
Ex Tax: £124.00
Showing 1 to 24 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
Embellished Crystal Long Black Halter Straps Prom Dresses KSP541
Tons of rhinestone in various size decorated top, patterned wave shape waistline in sheer vision, jo..
Special price:£110.00
Old price:£140.00
You save:£30.00
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