Which has the bigger carry-on allowance, Aer Lingus or Iberia?

Aer Lingus: 55 × 40 × 24 cm (21.7 × 15.7 × 9.4 in), up to 10 kg (22 lb). Iberia: 56 × 40 × 25 cm (22 × 15.7 × 9.8 in), up to 10 kg (22 lb). Iberia allows the larger bag.

Do Aer Lingus and Iberia include a carry-on on basic economy?

Aer Lingus: Saver fares on European routes include only a small bag; transatlantic fares include a 10 kg carry-on. Iberia: Long-haul Basic fares include a carry-on; on European routes, check your fare.

Where do Aer Lingus and Iberia fly from?

Aer Lingus's main hubs are Dublin (DUB). Iberia's are Madrid (MAD). The better pick is often whichever flies nonstop from your airport.

Are Aer Lingus and Iberia partners?

They aren't in the same alliance (Aer Lingus: none; Iberia: oneworld), so miles and status generally don't transfer between them.

EI vs IB · 2026 comparison

Aer Lingus vs Iberia

Aer Lingus wins on a bigger personal item; Iberia wins on a bigger carry-on. Here's how they compare on bags, fees, comfort, reliability and loyalty.

Verified Oct 17, 2026By Steven MoHow we check Report a correction

Aer Lingus

Wins 1 category

A bigger personal item

Iberia

Wins 1 category

A bigger carry-on

Quick verdict

Aer Lingus wins on a bigger personal item; Iberia wins on a bigger carry-on. Check the cheapest fare's bag rules before you compare prices.

Carry-on size: Aer Lingus: 55 × 40 × 24 cm · Iberia: 56 × 40 × 25 cm
Carry-on on the cheapest fare: Aer Lingus: Not on some basic fares · Iberia: Not on some basic fares
First checked bag (regular economy): Aer Lingus: 1 free bag · Iberia: 1 free bag

Side by side

	Aer Lingus	Iberia
Bags
Carry-on size	55 × 40 × 24 cm	56 × 40 × 25 cm
Carry-on on the cheapest fare	Not on some basic fares	Not on some basic fares
Carry-on weight limit	10 kg (22 lb)	10 kg (22 lb)
Personal item	40 × 30 × 20 cm	40 × 30 × 15 cm
First checked bag (regular economy)	1 free bag	1 free bag
Network
Alliance	None	oneworld
Loyalty program	AerClub	Iberia Club
Main hubs	DUB	MAD

Highlighted values are better for travelers. Fees are for U.S. domestic economy flights; on-time data is 2025 U.S. DOT figures for each airline's own flights.

Bags and fees

Aer Lingus allows a carry-on up to 55 × 40 × 24 cm (21.7 × 15.7 × 9.4 in), and Iberia up to 56 × 40 × 25 cm (22 × 15.7 × 9.8 in), so Iberia's is roomier.

Aer Lingus's Saver can be personal-item only, while Iberia's Basic can be personal-item only.

Carry-on weight limits: 10 kg (22 lb) on Aer Lingus, 10 kg (22 lb) on Iberia.

Personal items: 40 × 30 × 20 cm (15.7 × 11.8 × 7.9 in) on Aer Lingus, and 40 × 30 × 15 cm (15.7 × 11.8 × 5.9 in) on Iberia.

Aer Lingus includes one bag with Smart on flights between the U.S. and Ireland, and Iberia includes one bag with Optima on flights between the U.S. and Spain.

Basic economy

Aer Lingus (Saver): Saver fares on European routes include only a small bag; transatlantic fares include a 10 kg carry-on.

Iberia (Basic): Long-haul Basic fares include a carry-on; on European routes, check your fare.

Loyalty and where they fly

Aer Lingus is not in an alliance and Iberia is in oneworld.

Loyalty programs: AerClub (Aer Lingus) and Iberia Club (Iberia).

Aer Lingus's main hubs are Dublin (DUB). Iberia's are Madrid (MAD). The best choice often comes down to which airline flies nonstop from your airport.

Which should you book?

Choose Aer Lingus if you want…

a bigger personal item
nonstops from DUB

Choose Iberia if you want…

a bigger carry-on
to earn and use oneworld miles and status
nonstops from MAD

On a route both fly, the cheaper ticket isn't always the cheaper trip: add the bags you'll actually bring, and check the fare rules before you book.