What Size Is a Small Suitcase?
Whether you're heading out for a quick weekend getaway or packing light for a business trip, choosing the right small suitcase can make all the difference. But what exactly qualifies as a “small” suitcase — and how do you know if it meets airline rules? Let’s break it down.
What Counts as a Small Suitcase?
In most cases, a small suitcase is considered carry-on size — meaning it fits in the overhead bin and complies with most airline guidelines for cabin baggage.
That said, “small” can mean a few different things depending on the type of trip and how light you like to travel. Here are the three common types of small suitcases:
| Suitcase Type | Dimensions (Approx.) | Best For | Fits Where? |
|---|---|---|---|
| Underseat Bag | 16–18" H | 1–2 days, essentials only | Under airplane seat |
| Compact Carry-On | 19–21" H | 2–3 days, light packers | Overhead bin |
| Carry-On Plus | 21–22" H | 3–4 days, max carry-on space | Overhead bin |
Keep in mind: Different airlines have slightly different policies. For U.S. domestic flights, the max carry-on size is typically 22 x 14 x 9 inches, including wheels and handles. For international flights, that size may be smaller. ✈️ See TSA carry-on rules here
How Much Can a Small Suitcase Hold?
A small suitcase might surprise you with how much it fits — especially if it’s thoughtfully designed. Here’s what you can generally expect:
- Underseat bag: A pair of shoes, toiletries, a change of clothes, tech, and documents.
- Compact carry-on: 2–3 outfits, one pair of shoes, and travel accessories. Commonly known as an international carry-on.
- Carry-On Plus: 3–5 outfits, two pairs of shoes, toiletries, and some extras like a compact travel pillow. Commonly known as a domestic carry-on.
💡 Tip: Use packing cubes or compression pouches to stretch your space.
Small Suitcase Size Chart: Compare the Options
| Feature | Underseat Bag | Compact Carry-On | Carry-On Plus |
|---|---|---|---|
| Height Range | 16–18 inches | 19–21 inches | 21–22 inches |
| Fits Airline Bin? | Under seat | Overhead (International) | Overhead (Domestic) |
| Trip Length | 1–2 days | 2–3 days | 3–4 days |
| Typical Capacity | 20–25L | 30–40L | 40–45L |
| Ideal For | Commuters, short trips | Light travelers, Euro trips | Weekend getaways, domestic air travel |
Best Small Suitcases from DELSEY PARIS
Looking for a reliable small suitcase that blends style, security, and smart design? Here are three carry-on favorites from DELSEY PARIS:
Chatelet Air 2.0 International Carry-On
A timeless Parisian silhouette meets modern performance. Lightweight yet durable with signature spinner wheels and an antimicrobial interior lining for peace of mind. Ideal for short European trips or quick work travel.
Explore Chatelet Air 2.0 Carry-On
Flânerie SE Carry-On
Sleek and compact with a minimalist French design. The Flânerie SE fits in most overhead bins and offers functional interior organization with expandable capacity — perfect for light packers.
Shop Flânerie SE Carry-On
Rempart Carry-On
Built for travelers who like a sleek, no-nonsense case with tough protection. Rempart’s scratch-resistant shell and smooth-rolling wheels make it a great choice for everyday flyers.
View Rempart Carry-On
Final Tips Before You Fly
- Always double-check your airline’s carry-on rules, especially for international flights. What counts as “small” for one airline might be oversized for another.
- If you're traveling with just a small suitcase, wear your bulkier layers (like jackets or sneakers) to save space.
- Look for features that enhance packing — like expansion zippers, interior dividers, and built-in USB ports.
Travel Light, Travel Smart
A small suitcase is more than just a travel essential — it's your go-to companion for efficient, stress-free trips. Whether you're hopping across the country or heading overseas, choosing the right size helps keep your journey smooth from gate to hotel.
Ready to find your perfect fit?
Browse all DELSEY PARIS carry-on luggage and travel smart in style.