Item No. 7a attach 1 _______ 
Meeting Date:  October 24, 2017 

Attachment 1: Sea-Tac Cargo Growth 
The primary driver for freight growth is new freighter business, with the combination of DHL
relocated from Boeing Field that started June of 2016, and the new Prime Air service for
Amazon that began May, 2016. Both of these new services operate with freighters, 4 per day
for DHL and initially 1 but now 3 flights daily for Prime  to increase to 4 flights daily in
November. 
A secondary driver is inbound international freight, where the growth is occurring mostly on the
belly side with carriers including EVA, Hainan, and Xiamen  a new passenger carrier in Q3
2016. International exports are nearly flat, with another record cherry export season muted by
declines in other commodities including seafood. 
With the very large increase in freighter activity compared to belly growth, the belly/freighter
split which had been approaching 50/50 due to several years of new passenger service
additions has now swung back toward 65% freighter and 35% belly cargo overall. Greater
freighter activity has also increased the utilization of off-gate freighter hardstands. 
Year-end 2017 total cargo is conservatively forecasted to reach 420,000 MT, an annual increase
of 14.6%. 
On-airfield cargo facilities are at or above capacity with 0% available vacancy. Airline
stakeholders and staff are in discussions to expand the on-airfield cargo footprint at up to three
locations. Airport staff will continue working with Real Estate to support development of offairport
properties north and south of the airport. Approximately 2.3 million square feet of
industrial and cargo logistics-supportive space is completed or in development south of the
airport, while another 750,000+ square feet is in development or proposed to the north, in
addition to the completed 240,000 square foot multi-temperature facility that opened this
summer in Burien.