"The Way to the Airport" is mainly about "relationships", and the plot begins with the question of "Is there a proper relationship between married men and women?" In the play, Kim Ha-neul will play the leading female role, Choi Soo-ah, a deputy flight attendant with 12 years of experience as a flight attendant. When Choi Soo-ah was still a new flight attendant, she fell in love with the captain and married him, and now has a daughter who is in the fifth grade of elementary school. Choi Soo-ah is born to be a flight attendant, and she can get along with anyone. She thinks that she can give herself 85 points whether she is a wife or a mother. After meeting the male protagonist, her life ushered in a new situation. Lee Sang-yoon plays the male protagonist, Seo Do-woo, a lecturer majoring in architecture, who has a personality that is always pleasant. Seo Do-woo enjoys an ordinary life with his wife and daughter, but is suddenly involved in an incident and falls into trouble, and Choi Soo-ah slowly infiltrates his life.