Frontier Airlines is offering free domestic flights for children 14 or younger, but you have to a member of their Discount Den, which is $59.99 annually.

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The deal also requires that for every free seat, a corresponding adult seat must be purchased. The deal is also only available for select dates:

  • Feb. 12, 13, 19, 20, 26 and 27
  • March 5, 6, 12, 13, 19, 20, 26 and 27
  • April 2, 3, 9, 10, 16, 17, 23, 24 and 30
  • May 1, 4, 7, 8, 11, 14, 15, 18, 21, 22 and 29
  • June 1, 4, 5, 8, 11, 12, 18, 19, 25 and 26
  • July 9, 15, 16, 22, 23, 29 and 30
  • Aug. 5 and 6

(Dates subject to change, please check Frontier’s website for details.)

Lap children do qualify for the offer but should be booked at the time of initial booking as a child instead of a lap child.

The deal is only available on Frontier's booking website, flyfrontier.com.

Other restrictions apply (read more on flyfrontier.com).

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