What is Ryanair's Small Bag Size?

Ryanair Small Bag Size: Don’t Get Caught Out at the Gate (40x30x20cm)

If you’ve ever flown with Ryanair, you’ll know how strict they can be about baggage. One of the most common questions travellers ask is: what size bag can I bring for free? Let’s clear it up so you can travel stress-free—and avoid those painful last-minute airport fees.

Your Free Ryanair Small Bag Allowance

Every Ryanair ticket includes one free small personal bag. The key is making sure it fits within their exact dimensions:

40cm x 30cm x 20cm

This bag must fit under the seat in front of you, so think compact—like a small backpack, tote, or travel bag. The goal is to pack smart without exceeding the size limit.

If you’re unsure what qualifies, we’ve got you covered with a full range of perfectly sized options here:
👉 https://www.carews.ie/collections/underseat-bag

These bags are specifically designed to meet Ryanair’s requirements, so you won’t have to second-guess at the gate.

Need More Space? Consider Priority Boarding

If one small bag just isn’t enough, Ryanair’s Priority & 2 Cabin Bags option is worth considering.

With this upgrade, you can bring:

• Your free small bag (40x30x20cm), plus
• A larger cabin bag (up to 10kg, max size 55cm x 40cm x 20cm)

The larger bag goes in the overhead locker, giving you significantly more packing space. As a bonus, you’ll also board earlier—ideal if you want to avoid the rush.

Can You Bring a Backpack?

Yes—but size matters.

A backpack is perfectly fine as your free personal item, as long as it fits within 40x30x20cm. Soft-sided backpacks are a great option because they can compress slightly to fit the sizer.

Choosing the right bag from the start can save you hassle (and money), so it’s worth investing in one that’s designed for underseat travel.

Pack Smart and Avoid Extra Fees

Ryanair’s baggage rules are simple once you understand them—but they’re strictly enforced. Showing up with an oversized bag can result in unexpected charges that cost more than your flight.

To stay on the safe side:

• Stick to the 40x30x20cm limit for your free bag
• Measure your bag before you travel
• Choose luggage designed for underseat use

Browse our full range of Ryanair-friendly underseat bags here:
👉 https://www.carews.ie/collections/underseat-bag

Final Thoughts

A little planning goes a long way when flying with budget airlines. With the right bag and a clear understanding of the rules, you can breeze through the airport without any surprises.

Travel light, travel smart—and enjoy your trip ✈️