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To book a flight with an unused ticket, follow the steps for searching for a flight (see Searching for a Flight on Classic EttaDeem) and selecting a flight (see Selecting a Flight on Classic EttaDeem). You can select a flight that has an unused ticket icon in its heading to use the ticket.
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Note: Only tickets with a lesser remaining value than the planned trip are available.
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To learn how to apply Unused Ticket, go to Applying Unused Tickets.