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Aer Lingus vs British Airways

Cabin and carry-on baggage limits for Aer Lingus and British Airways, side by side.

⚠ These figures are awaiting manual verification against the airline's official page. Treat them as preliminary.

British Airways allows the larger carry-on — its longest side is 56 cm, versus 55 cm for Aer Lingus.

Both allow the same largest personal item (40 cm).

Check your bag

Enter your bag's dimensions to see how it fares against both airlines' carry-on limits.

optional — leave blank to skip the weight check Leave blank and we report the piece count as not checked — never as passed. Enter it only if you want it compared.

PreliminaryRules marked Preliminary have not yet been manually verified against the airline's official page. They may differ from the airline's actual policy — always confirm with the airline before you fly.

Carry-on compliance check results
Airline Verdict Fits as Margin Checked on Source

Enter your bag's size above to see which airlines accept it.

Max dimensions
55 × 40 × 24 cm
Total linear
Not published
Weight limit
10 kg per piece
Pieces
1
British Airways BA More room
Max dimensions
56 × 45 × 25 cm
Total linear
Not published
Weight limit
23 kg per piece
Pieces
1

Cabin & carry-on allowances

Baggage allowances by fare tier
Allowance Aer Lingus British Airways
Carry-on 55 × 40 × 24 cm · Not published · 10 kg per piece · 1 pc Published as 55 x 40 x 24 cm / 10 kg (unified policy from 2026-03-03). Saver fare excludes carry-on; must be purchased Carry-on 55 x 40 x 24 cm / 10 kg (unified 10 kg policy from 2026-03-03). Saver fare excludes carry-on and must be purchased. 56 × 45 × 25 cm · Not published · 23 kg per piece · 1 pc including wheels and handles Must fit in the overhead locker
Personal item 40 × 30 × 20 cm · Not published · Not published · 1 pc Published as 40 x 30 x 20 cm; no separate weight limit. Free on all fares Personal item 40 x 30 x 20 cm, free on all fares. 40 × 30 × 15 cm · Not published · 23 kg per piece · 1 pc including wheels and handles Must be stowed under the seat in front of you

Sources

Aer Lingus

Carry-on Baggage - Aer Lingus (opens in a new window)
Official · unverified Last checked: 2026-10-11

British Airways

Baggage information (opens in a new window)
Official · unverified Last checked: 2026-10-11

The rules behind these figures

Both sides of this comparison come from these rule pages; open one to see its source excerpt.