Frontier Airlines is now automatically seating children with a family member or adult in their party for free.

It announced the new measure on Tuesday, and said it applies to children under the age of 14.

Its booking engine now automatically assigns seats based on family members’ ages before the check-in window opens.

The new feature follows United Airlines’ launch of a new seat map and policy that allows passengers to switch flights for free — amid calls to remove unfair fees.

“We recognize the importance of seating children next to an adult with whom they are traveling,” said Daniel Shurz, senior vice president, commercial, at Frontier.

Tags: Biden Administration, children, family travel, frontier airlines, united airlines