Plus Size Long Dresses

Looking for a long plus size dress with a burst of color, a touch of sparkle, or an elegant sophisticated style for your prom or formal?

Then check out this amazing collection of long designer dresses in plus sizes. We offer long strapless dresses for prom, homecoming high low dresses, and dazzling beaded plus gowns that can take you down any red carpet.

Whatever style you want PromGirl is sure to have a dress that will make any fashion diva happy and our guaranteed low prices make these dresses a must for your next formal.

In Stock Buy Long V-Neck Gown by Night Moves at PromGirl
  • Lime

Long V-Neck Gown by Night Moves

$398.00 $199.00 NM-7138W
In Stock Buy Long V-Neck Plus Size Gown at PromGirl
  • Turquoise

Long V-Neck Plus Size Gown

$398.00 $199.00 NM-7132W
In Stock Buy Long Strapless Sweetheart Formal Gown at PromGirl
  • Turquoise

Long Strapless Sweetheart Formal Gown

$378.00 $189.00 NM-7131W
In Stock Buy Full Length Strapless Plus Size Gown at PromGirl
  • Seafoam
  • Electric Blue

Full Length Strapless Plus Size Gown

$358.00 $179.00 FA-9340
In Stock Buy Floor Length Strapless Plus Size Dress at PromGirl
  • Lime

Floor Length Strapless Plus Size Dress

$358.00 $179.00 NM-7120W
In Stock Buy Long Halter Ombre Dress at PromGirl
  • Black/Pink

Long Halter Ombre Dress

$99.00 JU-ON-937969A
In Stock Buy High Low Strapless Sweetheart Dress at PromGirl
  • Watermelon

High Low Strapless Sweetheart Dress

$99.00 $49.00 NA-P2697
* Products with an "in stock" banner have at least some size and color combinations ready to ship immediately. Available sizes and colors may be limited due to seasonality. Please read our complete availability policy for more information.