Limit one voucher per Discount Den member and email. The voucher will be emailed to the subscribed members on October 22, 2020. The flight voucher is only valid towards one future purchase of flight fare on Frontier Airlines for one-time use. Any unused value will be forfeited. The flight voucher can only be used toward flight fare. The flight voucher will expire 180 days after issuance. The voucher has no cash value and may not be applied to past bookings or subscriptions, refunded, sold, bartered, or traded. So book your flight ticket from the Frontier Airlines Reservations phone number +1-800-278-1680 to save your more money.