The UK's flagship carrier has always prided itself on making travel smooth and easy for its customers. Like all modern airlines though, it has had to adapt its rules to cater to the carry-on revolution.
Here's the latest on British Airways' carry-on size regulations.
- British Airways includes 1 cabin bag and 1 personal item for free on every fare, including Economy Basic.
- Cabin bags can measure up to 56 x 45 x 25 cm (22 x 18 x 10 in), while personal items must fit under the seat in front of you.
- The combined carry-on weight allowance is 23 kg (51 lb), as long as you can lift your bag into the overhead bin yourself.
- Want to avoid gate-checking your bag? Keep essentials in your personal item and board with your assigned group when possible.
In this article
- British Airways carry-on: bag sizes, weights and allowances.
- Important British Airways carry-on rules.
- What else can you bring on board as carry-on luggage?
- What is the liquids rule on British Airways?
- Top three carry-on luggage tips for British Airways.
- Common questions for British Airways carry-on bags, answered.
British Airways carry-on: bag sizes, weights and allowances.
British Airways has one of the most generous carry-on baggage allowances among major airlines. Even on its cheapest Economy Basic fare, travelers can bring 1 cabin bag and 1 personal item free of charge.
Here’s a quick look at the current British Airways carry-on size and weight limits.
*British Airways allows both bags to weigh up to 23 kg (51 lb) each, provided you can lift them safely into the overhead bin or carry them yourself.
What counts as a personal item on British Airways?
Your British Airways personal item (called a “small bag”) must fit under the seat in front of you.
Examples of approved personal items include:
- Backpack
- Tote bag
- Handbag
- Laptop bag
- Briefcase
British Airways guarantees cabin space for your personal item, making it the best place to store valuables, medication, travel documents and electronics.
Does British Airways carry-on size change by cabin class?
No. The British Airways carry-on allowance is the same across all cabin classes. Whether you’re flying Economy, Premium Economy, Business Class or First Class, you can bring:
- 1 cabin bag up to 56 x 45 x 25 cm (22 x 18 x 10 in)
- 1 personal item up to 40 x 30 x 15 cm (16 x 12 x 6 in)
The same carry-on size limits apply on BA CityFlyer and BA Euroflyer flights. However, overhead bin space is often more limited on regional aircraft, so larger cabin bags are more likely to be gate-checked.
If cabin storage fills up, British Airways may ask travelers to place their cabin bag in the hold. Keep essentials such as passports, medications, chargers and valuables in your personal item so they stay with you throughout the journey.
Flying on a partner airline?
If part of your itinerary is operated by another airline, different carry-on baggage rules may apply. For example, some American Airlines and Iberia-operated flights use a cabin bag limit of 56 x 36 x 23 cm (22 x 14 x 9 in).
Always check the baggage policy of the operating carrier before you travel.
British Airways carry-on rules for children.
Children aged 2–11 receive the same carry-on baggage allowance as adults.
If you’re traveling with an infant under 2 years old, British Airways also allows an additional bag containing in-flight essentials such as diapers, food and clothing.
This extra bag must not exceed the standard cabin bag size limit of 56 x 45 x 25 cm (22 x 18 x 10 in).
Important British Airways carry-on rules.
Before you fly, keep these British Airways baggage rules in mind:
- Carry-on dimensions include wheels, handles and pockets.
- Cabin bags may be checked at the gate if overhead bins are full.
- Personal items are guaranteed to stay in the cabin.
- Oversized bags may be transferred to checked baggage.
- British Airways generally does not charge surprise carry-on fees, unlike many low-cost airlines.
What else can you bring on board as carry-on luggage?
Not all rules are set in stone. British Airways does offer some flexibility around what else you can bring on board as carry-on baggage. This includes:
You can carry musical instruments in their case as hand baggage, including violins, violas and small wind instruments. These are considered part of your free hand baggage allowance, not an addition to it. The instrument in its case must not exceed 31 x 18 x 10 inches.
British Airways states it will make every effort to find space in the cabin for musical instruments within these dimensions, as they acknowledge the extreme temperatures and extra handling that comes with checked luggage may cause damage in the hold.
You can take certain specified sports equipment into the cabin as part of your carry-on baggage allowance, but rules are quite specific so make sure to double check before you travel.
Up to two tennis, squash and badminton rackets carried in a “slim protective case” can be carried as long as the case doesn’t exceed 31 x 18 x 4 inches.
There’s no limit to the number and weight of medical equipment you can bring on board, although you may need permission beforehand. This includes things like a CPAP machine, nebuliser, insulin pump or a portable oxygen concentrator (POC).
What is the liquids rule on British Airways?
On British Airways flights departing UK airports, liquids must be in containers of 100 ml / 3.4 oz or less, all placed in a single transparent resealable bag no larger than 1 litre.
Here's what else to know:
- You're allowed one resealable bag per passenger and must present it separately at the security checkpoint.
- Exemptions apply for baby food, breast milk and prescription medicines in reasonable quantities (these do not need to go in the resealable bag).
- Rules may vary at non-UK departure airports, so check the requirements for your specific departure point before you travel.
Top three carry-on luggage tips for British Airways.
from travel expert Duncan Madden
1. Pack your essentials in your small bag.
Only your personal item is guaranteed to stay in the cabin if overhead bins are full. Keep important items like your passport, wallet, medication and electronics within easy reach throughout your journey.
2. Bring a spare outfit in your carry-on.
Delayed or missing checked baggage can happen on any trip. Packing a change of clothes in your cabin bag can make travel disruptions far less stressful – especially if you’re heading to a business meeting or special event.
3. Board with your assigned group.
Your boarding pass includes a boarding group to help keep the process moving smoothly. Boarding on time improves your chances of finding overhead bin space near your seat and reduces the likelihood of your cabin bag being checked at the gate.
Common questions for British Airways carry-on bags, answered.
Here are the answers to the questions British Airways passengers are asking most.
British Airways generally enforces its carry-on size and weight policy, so it’s best to stick to the limits to avoid surprises at the airport. The airline uses bag sizers at some gates, especially on short-haul and regional routes and checks are often more consistent at check-in than during boarding on long-haul flights.
If your bag doesn’t fit the sizer, it may need to be checked into the hold free of charge unless you exceed your checked baggage allowance. Travelers flying on BA Cityflyer or BA Euroflyer routes may face stricter enforcement due to smaller overhead bins.
On most BA-operated flights, there is no enforced per-bag weight limit. You just need to be able to lift your bag into the overhead locker unassisted.
Partner airline or codeshare segments may apply stricter per-bag limits, so always check your operating carrier's policy before you travel.
Yes, British Airways allows each passenger to bring one personal item and one piece of carry-on baggage at no extra cost.
This is true across all its fare classes and routes, although on smaller planes you may have to stow your carry-on bag in the hold at no extra cost. Personal items include backpacks, handbags, laptop bags, umbrellas, and briefcases.







