British Airways is known for its generous baggage allowance, but like any airline, they have rules you’ll need to follow.
If you’re flying with BA, it’s good to know what’s allowed, what’s not, and how strict they are about luggage sizes and weight.
Let’s break it down so you can avoid any last minute surprises at the airport.

How Strict Is British Airways About Carry-On Luggage?
British Airways is fairly relaxed about carry-on baggage, but they do enforce their size and weight limits.
You’re allowed two pieces:
- Main carry-on bag: Up to 23kg (51 lb) and within 56 x 45 x 25cm (22 x 18 x 10 inches).
- Handbag/laptop bag: Up to 23kg (51 lb) and within 40 x 30 x 15cm (16 x 12 x 6 inches).
If your bags exceed these limits, they might need to be checked, possibly at an additional cost.
Does British Airways Charge for Carry-On Bags?
No.
Carry-on luggage is free as long as it meets the size and weight limits.
But, on busy flights, BA may ask you to check in your larger cabin bag at the gate for free, so keep your valuables in your smaller bag.
Keep in mind that any extra bags, including duty-free purchases, count toward your allowance.
If you go over, you may have to transfer a bag into the hold.
What About Checked Baggage?

Your checked baggage allowance depends on your ticket type and frequent flyer status. Here’s the general rule:
- Checked bag size: Maximum 90 x 75 x 43cm (35.5 x 29.5 x 16in).
- Weight limit: Each bag must not exceed 23kg (51 lb), though some premium cabins allow 32kg (70 lb).
- Fees for extra bags: Prices vary, but checking a bag at the airport typically costs £65—it’s cheaper if you pay online.
Tip: If your bag exceeds the weight limit, you’ll need to pay an overweight bag charge (around £65 / $100 per bag).
No single bag over 32kg (70 lb) is allowed.
Can You Buy Extra Baggage on British Airways?
Yes, You can add up to 10 additional bags beyond your free allowance. The best way to save money is to pay for extra baggage online before you arrive at the airport.
Payment Note: Many airports, including Heathrow and Gatwick, only accept card payments for baggage fees.
Special Baggage (Sports Equipment & Musical Instruments)
- Sports Equipment: Most items can be checked as part of your baggage allowance, but oversized or heavy gear may require an extra fee.
- Musical Instruments: Smaller instruments can be carried on if they fit within hand luggage limits. Larger ones may need special arrangements.
Restricted & Prohibited Items
Like any other airline, BA has a long list of items that you cant’ bring on board or in checked baggage:
- Sharp objects, weapons, or explosives.
- Large liquid containers (over 100ml) in hand luggage.
- Certain powders (like flour or cosmetics) on flights to the US.
For a full list, you can find more on this post about what items are not allowed in checked luggage.
Final Thoughts
British Airways offers a pretty generous baggage policy, but it is always best to double check your suitcase size and weight before heading to the airport.
Paying online for extra baggage can save you money, and knowing the rules in advance helps you avoid unnecessary stress.
Happy travels.
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