On their Olympic Air fleet (Bombardier-type DH8-100, DH8-400 and ATR), your bag must not exceed 55cm x 40cm x 23cm and 8kg.
Fees get more expensive the closer you get to departure. For example: paying online for short international flights is €27 but at the gate it is €60.
Max Dimensions:
56 x 45 x 25 cm
23 x 18 x 10 inches
Weight Restrictions:
8 kg
17.6 lbs
30L 3.25lbs
✈️ 98% - 20x13x8in
22L 3.13lbs
✈️ 98% - 19x11x5in
36L 2.5lbs
✈️ 81% - 20x14x8in
42L 4.6lbs
✈️ 64% - 22x14x10in
42L 3.6lbs
✈️ 65% - 22x14x10in
44L 2.8lbs
✈️ 65% - 21x14x10in
44L 2.5lbs
✈️ 65% - 22x14x10in
45L 3.1lbs
✈️ 47% - 23x14x8in
40L 2.4lbs
✈️ 47% - 21x14x10in
35L 3.5lbs
✈️ 98% - 20.5x13.8x4.7in
60L 5.4lbs
✈️ 88% - 28x16x8in