Seats Frog guide

Air China Airbus A330-300 (311 seats) vs Aer Lingus Airbus A330-300 (A330-305, 307 seats)

Air China Airbus A330-300 (311 seats) has 311 seats and Aer Lingus Airbus A330-300 (A330-305, 307 seats) has 307. Only the first has Premium Economy.

Cabins side by side

Cabin	Seats	Rows	Layout	Seat
Air China · 311 seatsBusiness Class	36	11–16	2-2-2	Lie-flat bed
Air China · 311 seatsPremium Economy	20	31–33	2-4-2	Recliner
Air China · 311 seatsEconomy Class	255	34–66	2-4-2	Recliner
Aer Lingus · A330-305, 307 seatsBusiness	30	1–5	2-2-2	—
Aer Lingus · A330-305, 307 seatsEconomy	277	9–44	2-4-2	Recliner

311 seats: 8 good, 28 mixed, 10 to avoid

Rows 12–15, seats A and L (Business Class): set back from the aisle, so it is more private

Row 16, seats C and J (Business Class): next to a lavatory, with queues, noise and flushing
Row 48, seats A, C, D, E, F, H, J and L (Economy Class): next to a lavatory, with queues, noise and flushing

307 seats: 18 good, 28 mixed, 11 to avoid

Rows 1–5, seats D and G (Business): one of the centre pair, each with its own aisle: good for two travelling together, with nobody to step over.
Rows 9 and 30, seats A, C, H and K (Economy): exit row by the door, sold as an Extra Legroom seat: open floor in front, but people pass on their way to the lavatories and galley. No children under 14 or people with reduced mobility.

Row 28, seats D, E, F and G (Economy): backs onto the lavatories or galley Aer Lingus draws behind this row: recline is likely limited, and the queue forms beside you.
Rows 42–44, seat E (Economy): middle of the three centre seats where the cabin narrows: a neighbour on each side and no aisle of your own.
Row 44, seats A, C, H and K (Economy): last row of the cabin, with lavatories or a galley drawn right behind it: recline is likely limited and there is traffic and noise.