Blue Formal Dresses

123 Products

Michaela Midi Dress
Michaela Midi Dress

Jacquard Ruffle Detail Tiered Dress in Light Blue

$
139.95
Rania Maxi Dress
Rania Maxi Dress

Contrast Lace Bodice Bias Cowl Drop Waist Dress in Soft Blue

$
129.95
Leticia Maxi Dress
Leticia Maxi Dress

Mesh Off Shoulder Ruched High Split Dress in Blue

$
129.95
Indi Maxi Dress
Indi Maxi Dress

Boat Neck Bodycon Dress in Light Blue

$
129.95
Charlita Maxi Dress
Charlita Maxi Dress

Strapless Cowl Back Satin Dress in Steel Blue

$
129.95
Genie Maxi Dress
Genie Maxi Dress

Off The Shoulder Dress in Baby Blue

$
119.95
Veronika Maxi Dress
Veronika Maxi Dress

Off Shoulder Plunge High Split Dress in Blue

$
139.95
More Than This Maxi Dress
More Than This Maxi Dress

Ruffle Strap Thigh Split Dress in Light Blue

$
119.95
Sienna Maxi Dress
Sienna Maxi Dress

3D Floral Strapless Column Dress in Blue

$
249.95
Donna Maxi Dress
Donna Maxi Dress

Cowl Neck Column High Split Dress in Soft Blue

$
119.95
Avery Midi Dress
Avery Midi Dress

Strapless Draped Side Split Dress in Blue

$
149.95
Lizzy Maxi Dress
Lizzy Maxi Dress

Backless Ruched Bodycon Dress in Blue

$
129.95
Cardi Maxi Dress
Cardi Maxi Dress

Ruched Mesh High Leg Split Dress in Blue

$
129.95
Jocelyn Maxi Dress
Jocelyn Maxi Dress

Strapless Ruched Fit And Flare Dress in Blue

$
149.95
Berri Maxi Dress
Berri Maxi Dress

Strapless Jacquard High Split Dress in Blue

$
149.95
Salome Midi Dress
Salome Midi Dress

Halter Neck Column Dress in Blue

$
139.95
Pietra Midi Dress
Pietra Midi Dress

Scoop Neck Side Seam Tucks Fitted Dress in Soft Blue

$
139.95
Sabine Maxi Dress
Sabine Maxi Dress

3D Sequin Floral Strapless in Sky Blue

$
199.95
Nicolette Maxi Dress
Nicolette Maxi Dress

Cape Sleeve Off Shoulder Dress in Blue

$
139.95
Jamie Maxi Dress
Jamie Maxi Dress

Strapless Ruched Fitted Column Dress in Blue

$
129.95
Crisanta Maxi Dress
Crisanta Maxi Dress

Long Sleeve Contrast Lace Bodycon Dress in Pale Blue

$
139.95
Opal Maxi Dress
Opal Maxi Dress

Off Shoulder Gathered Bodice Fit And Flare Dress in Blue

$
129.95
Angie Maxi Dress
Angie Maxi Dress

Strapless Bias Column Dress with Scarf in Blue Print

$
159.95
Benita Midi Dress
Benita Midi Dress

Scoop Neck Ruched Fitted Dress in Blue

$
129.95
Phoebe Maxi Dress
Phoebe Maxi Dress

Strapless Structured Bodice Drape Skirt Dress in Soft Blue

$
149.95
Savanna Maxi Dress
Savanna Maxi Dress

Ombre Sequin Halter Dress in Aqua

$
139.95
Ginny Maxi Dress
Ginny Maxi Dress

Jersey Ruched V Waist Dress in Blue

$
119.95
Ruby Maxi Dress
Ruby Maxi Dress

Halter Scoop Neck Low Back Bodycon Dress in Light Blue

$
129.95
Larson Maxi Dress
Larson Maxi Dress

Asymmetric Tie Neck Column Dress in Pale Blue

$
139.95
Adiana Maxi Dress
Adiana Maxi Dress

Floral Print Strapless Dress in Aquamarine Floral

$
109.95
Showing 1 - 30 of 123 Products

Formal Dresses 

Where can I buy formal dresses online in the US?

If you’re searching for formal dresses online in the US that actually feel modern, polished, and photo-ready, Showpo’s edit delivers. From prom and Senior formal to black-tie weddings, galas, Junior banquets, graduation dinners, and every elevated RSVP in between, our formal dresses are designed for main-character moments. Whether you want a sweeping floor-length gown, a sleek satin midi, or a statement piece that turns heads the second you walk in, this is where confidence meets occasion dressing. Freshman to Senior year and long after, these are the dresses you save to your camera roll before you even hit checkout.

What is the formal dress code in the US?

In the US, formal usually means maxi gowns for black-tie events and elegant midis or cocktail-length styles for semi-formal occasions like prom, school banquets, or formal weddings. Think luxe fabrics like satin and chiffon, refined silhouettes, and elevated details such as strapless necklines, halters, open backs, and one-shoulder cuts. Classic shades like black, navy, emerald, champagne, and blush always work, especially under evening lights and flash photography. When in doubt, choose the dress that feels slightly more dressed up than the invite suggests because confidence is always in code.

How do I style and accessorize a formal dress?

Styling a formal dress is about letting the dress lead and keeping everything else intentional. Pair a bold gown with minimal heels and delicate jewelry, or elevate a sleek, simple silhouette with statement earrings and a chic clutch that fits your phone, lip gloss, and cards. Gold tones warm up champagne and red hues, silver sharpens navy and emerald, and a soft wave or slick bun instantly refines the look. Glowy skin keeps things timeless, while a red lip brings drama in the best way. The goal is polished, effortless, and unmistakably put together.

Does Showpo offer fast US shipping and plus sizes for formal dresses?

Yes, we offer Next-Day Delivery across the US for those last-minute invites to black-tie events, sorority formals, charity galas, military balls or fancy rooftop engagement parties. Our formal dresses come in US sizes 0 to 16, including plus-size options, so more women can find a silhouette that feels tailored to their moment. The Size Guide keeps things simple, our Returns Policy keeps it stress-free, and your only job is choosing the dress that makes you stand taller the second you zip it up. Need styling help or trend inspo before you commit? Head to our blog for expert fashion tips, occasion outfit guides, and everything you need to own the night with confidence.