Airline vs airline · Checked October 29, 2026
Aer Lingus vs British Airways: baggage rules compared
Carry-on, personal item, checked bag and check-in deadlines for Aer Lingus and British Airways, from each airline's own website.
The short version
- British Airways' carry-on limit is roomier (22 x 18 x 10 in) than Aer Lingus' (21.5 x 15.5 x 9.5 in), about 19% more space.
- Aer Lingus: 22 lb (10 kg) carry-on weight limit. British Airways: no published carry-on weight limit.
- Aer Lingus includes a carry-on depending on the fare, while British Airways includes a carry-on.
- Aer Lingus' personal item allowance (15.5 x 11.5 x 8 in) is bigger than British Airways' (16 x 12 x 6 in).
| Aer Lingus | British Airways | |
|---|---|---|
| Carry-on size | 21.5 x 15.5 x 9.5 in / 55 x 40 x 24 cm | 22 x 18 x 10 in / 56 x 45 x 25 cm |
| Carry-on weight | 22 lb (10 kg) | No published limit |
| Carry-on on the cheapest fare | Depends on fare (Not included in Saver fares) | Included |
| Personal item | 15.5 x 11.5 x 8 in / 40 x 30 x 20 cm | 16 x 12 x 6 in / 40 x 30 x 15 cm |
| Checked bag size | 158 cm (62 in) in total | 90 x 75 x 43 cm |
| Checked bag weight | 23 kg (50 lb) per bag in economy, 32 kg (70 lb) max for any bag | 23 kg (51 lb) per bag in economy, 32 kg (71 lb) max for any bag |
| Online check-in opens | 48 hours before | 24 hours before |
| Bag drop closes | 45 min before (domestic / short-haul), 75 min before (international / long-haul) | 45 min before (domestic / short-haul), 60 min before (international / long-haul) |
| At the gate by | Not published | 20 min before |
| Power banks | Standard 100 Wh / 160 Wh rules | Standard 100 Wh / 160 Wh rules |
Carry-on that fits both
55 x 40 x 24 cm (21.7 x 15.7 x 9.4 in)
The smallest limit on each side
Personal item that fits both
40 x 30 x 15 cm (15.7 x 11.8 x 5.9 in)
The smallest limit on each side
Flying both on one trip? The trip checker shows which airline sets each limit, and the gate card keeps the rules on your phone.
Will your bag fit?
Measure with wheels, handles and pockets included. The order of the sides doesn't matter.
Questions people ask
Is the Aer Lingus carry-on bigger than British Airways?
British Airways' carry-on limit is roomier (22 x 18 x 10 in) than Aer Lingus' (21.5 x 15.5 x 9.5 in), about 19% more space.
What carry-on size fits both Aer Lingus and British Airways?
A bag no bigger than 55 x 40 x 24 cm (21.7 x 15.7 x 9.4 in) fits both carry-on limits, and 40 x 30 x 15 cm (15.7 x 11.8 x 5.9 in) fits both personal item limits. Check weight limits too.