I looked at the ticket breakdown for my upcoming flight to CR with Delta and exit tax is not included on my ticket.

I should have booked with Jetblue. It just seems so much easier if exit tax is included in the ticket price.
Taxes, Fees and Charges
United States - September 11th Security Fee(Passenger Civil Aviation Security Service Fee) (AY) $11.20 USD
United States - Animal and Plant Health Inspection Service Fee (APHIS User Fee - Passengers (XA) $5.00 USD
United States - Immigration and Naturalization Fee(Immigration User Fee) (XY) $7.00 USD
United States - Custom User Fee (YC) $5.50 USD
Costa Rica - Common Area User Charge (FS) $6.29 USD
Costa Rica - Security Fee (IK) $3.04 USD
Costa Rica - Tourism Arrival Tax (NW) $15.00 USD
United States - Passenger Facility Charge (XF) $13.50 USD
United States - Transportation Tax (US) $35.40 USD