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Sea-Tac Airport celebrates 70 years in July
Sea-Tac International Airport has expanded well beyond its original scope when it opened 70 years ago.
When it originally opened, Sea-Tac had four runways. The original terminal cost $3.2 million to build.
The first runways were built between 1943 and 1944. They were constructed in an "X" configuration to cover all wind conditions - It is the reason for the main terminal's shape.
Service began with Northwest and United airlines.
The airport was serving about 1 million passengers by 1954.
Today, Sea-Tac is ranked as the eighth busiest U.S. airport, serving nearly 50 million passengers in 2018.
https://www.msn.com/en-us/travel/news/sea-tac-airport-celebrates-70-years-in-july/ar-AAECxLU
