In Economy Class on non-US flights, the luggage allowance is 20 kg/44 lbs. On flights between Iceland and the US, the limit is two pieces of luggage up to 23 kg/50 lbs each.
Saga Class members may bring 30 kg/66 lbs on non-US flights, and 32 kg/70 lbs on flights to/from the US.
Excess Weight of Baggage:
$72-$135 depending on the destination of the flight (details here).
Carry On Luggage Policies at IcelandAir:
Economy Class passengers: One carry-on bag up to 6 kg/13 lbs. Saga Class travelers: 2 pieces up to 9 kg/20 lbs each. Additional items permitted free of charge are a coat, small camera, reading material, umbrella, purse or handbag.
Infants without a seat have a checked-in baggage allowance of 10 kg/22 lbs plus a car seat or baby stroller/trolley.
Need luggage regulations for another airline? Visit the list of current luggage policies at different airlines.