Scandinavian Airlines is back with its kids fly free promotion, offering families looking to explore the Scandinavian countries of Sweden, Norway, and Denmark the chance to do so at a major discount.

The airline is offering free base airfare for round-trip flights to children traveling to any of the airline's destinations in Scandinavia and Finland with their adult companions between Jan. 8 and April 2, 2019.

Passengers only need to pay the cost of government taxes and carrier-imposed fees for the child’s ticket, meaning children can fly from the U.S. to the European stops for as little as roughly $60 round-trip.

The deal is available from all seven of Scandinavian Airlines’ U.S. markets, including Boston, Chicago, Los Angeles, Miami, Newark, San Francisco, and Washington, D.C.

The deal is applicable for infants up to 23 months old and children from the ages of two to 11 years old. While children 12 or over will not qualify for the promotion, the airline does also offer youth rates to travelers under the age of 26.

Flights must be booked directly through the airline’s website by Dec. 10.