Incheon International Airport has surpassed 1 billion cumulative passengers, marking the fastest record among major airports worldwide.

However, new challenges lie ahead.
With Incheon Airport expected to reach saturation by 2033, China and Japan are accelerating large-scale expansions to strengthen the competitiveness of their own hub airports.

SBS News takes a look at the competition between Korea, China, and Japan over Northeast Asian hub airports and the key issues surrounding the Incheon Airport Phase 5 expansion project.

Produced by Kim Hye-ji | Edited by JISOO | Narrated by Han Ji-ho | Intern Kwon Ji-won | Directed by Song Hae-bin