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1.
Airport that has fewer international destinations
2.
Airport that is closer to Seoul
4.
Smaller airport in size
5.
Airport that has the code GMP
7.
Airport which has 4 airstrips and 1 that will be built in the future
8.
Airport which Delta Air Lines, United Airlines, and American Airlines operate
9.
Airport that people can use to visit Taiwan
10.
Airport that has less domestic destinations