Icelandair

Icelandair allows 1 small personal item in addition to your carry‑on. It must fit under the seat and measure no more than 40 × 30 × 15 cm (about 16 × 12 × 6 in), and it is subject to a combined cabin weight limit of 10 kg (22 lb) per passenger. Extra personal items are not sold; any additional piece will be checked as an extra bag, with prepaid fees starting from $59.

Icelandair’s carry-on allowance is: Economy — 1 bag up to 55 × 40 × 20 cm and 10 kg (22 lb), plus a small personal item; Saga Premium — 2 bags of the same size with a combined weight of 10 kg (22 lb). Extra carry-on pieces aren’t sold; any oversize, overweight, or additional item is gate-checked as hold baggage, with the extra-bag fee starting from $75 each way.