Choosing the right carry-on luggage for Australian domestic flights can save you time, money, and a lot of airport stress. With Qantas, Virgin Australia, and Jetstar all enforcing different size and weight limits, picking the wrong bag means gate-checking fees or last-minute repacking. This guide covers everything you need to know for 2026.
Australian Domestic Airline Carry-On Rules (2026)
- Qantas: 1 carry-on up to 56 x 36 x 23cm, max 7kg. Plus 1 personal item.
- Virgin Australia: 1 carry-on up to 56 x 36 x 23cm, max 7kg. Plus 1 personal item.
- Jetstar: Stricter — carry-on included only on some fares. Max 56 x 36 x 23cm, 7kg. Always check your fare type before flying.
- Rex: 1 carry-on up to 48 x 34 x 23cm, max 7kg on most routes.
Pro tip: Always check your airline's website before flying — limits can change and vary by fare class. Budget fares on Jetstar often don't include carry-on at all.
What to Look for in a Carry-On Suitcase
Size and Dimensions
The standard Australian domestic carry-on limit is 56 x 36 x 23cm. Most carry-on suitcases are designed to fit within these dimensions, but always check the product specs — some bags are borderline and may be rejected on stricter carriers. Look for bags listed as 20" or 21" cabin size.
Weight
A lighter bag means more room for your belongings within the 7kg limit. Polycarbonate hardshell cases typically weigh 2.0–2.8kg empty, leaving you 4–5kg for contents. Softshell bags can be lighter but offer less structure.
Hardshell vs Softshell
Hardshell carry-ons protect fragile items, are easier to wipe clean, and look sharp. Softshell carry-ons are more flexible — useful if you tend to overpack slightly — and often lighter. For a full comparison, see our guide: Hard Shell vs Soft Shell Luggage: Which is Right for You?
Spinner Wheels
Four-wheel spinner luggage rolls in any direction, making it effortless to navigate airports. Two-wheel bags are more stable on uneven surfaces but harder to manoeuvre in tight spaces. For domestic airport use, spinners win every time.
TSA Locks
Even for domestic travel, a built-in combination lock adds security. If you ever travel internationally through the USA, a TSA-approved lock is essential — it allows US airport security to open your bag without breaking the lock.
Best Carry-On Sizes for Different Trip Lengths
- 1–2 nights: A 20" cabin bag (around 35–38L) is plenty. Pack light and avoid checked baggage entirely.
- 3–5 nights: A 21" cabin bag (38–42L) gives you more room while staying within most airline limits.
- 5–7 nights: Possible with a 21" bag if you use packing cubes and pack efficiently. Otherwise consider a small checked bag.
Carry-On Accessories Worth Packing
- Packing cubes — compress clothing and keep your bag organised
- Luggage scale — weigh your bag at home before you leave
- TSA lock — secure your zippers even in the overhead locker
- Travel pillow — clip to the outside of your bag to save interior space
- Toiletry bag — keep liquids organised and CASA-compliant
Carry-On vs Checked Luggage: When to Check a Bag
Carry-on only travel works well for trips up to 5 days if you pack smart. For longer trips, family travel, or when you need to pack bulkier items, a checked suitcase is the better choice. See our carry-on only travel guide for tips on making it work for longer trips.
Frequently Asked Questions
What is the standard carry-on size for Australian domestic flights?
Most Australian domestic airlines allow carry-on bags up to 56 x 36 x 23cm and 7kg. Always check your specific airline and fare type, as budget carriers like Jetstar can be stricter.
Can I take a backpack as carry-on on Australian domestic flights?
Yes — a carry-on backpack that fits within 56 x 36 x 23cm and weighs under 7kg is permitted on most Australian domestic airlines.
Does Jetstar include carry-on luggage?
Not always. Jetstar's cheapest fares (Starter) only include a small personal item (under seat). You need to purchase a carry-on bundle or select a higher fare class to bring a full-size carry-on bag.
What's the lightest carry-on suitcase?
Lightweight polycarbonate hardshell cases can weigh as little as 1.8–2.2kg, leaving you more of your 7kg allowance for contents.
Can I bring a carry-on and a personal item on Australian domestic flights?
Yes — Qantas and Virgin Australia allow one carry-on bag plus one personal item. Jetstar's policy varies by fare type.
Browse our full range of carry-on cabin luggage — all with fast shipping across Australia.