Terminal 1 Terminal 1 (measuring ) is the largest
airport terminal by area in South Korea. Terminal 1 was designed by
Curtis W. Fentress, FAIA, RIBA of
Fentress Architects. It is long, wide, and high. Its construction cost was 5.632 trillion South Korean Won. The terminal has 47 boarding ports (all of which can accommodate the Airbus A380), 50 customs inspection ports, 2 biological quarantine counters, 6 stationary and 14 portable passenger quarantine counters, 120 arrival passport inspection counters, 8 arrival security ports, 28 departure security ports, 252 check-in counters, and 120 departure passport inspection counters. In 2015, an automatic check-in counter lane was introduced, which people travelling via
Korean Air,
Asiana Airlines and
China Southern Airlines can use. Instead of having airport staff at the counter, there is a machine where travellers input their flight information, scan their passports, receive their flight tickets and lastly, load the luggage onto the conveyor. This system was planned to be introduced in Terminal 2, but in May 2015, Incheon Airport used one of the counter islands for the unmanned luggage handling system. In December 2023, a
Oneworld-branded and operated lounge opened in Incheon Airport Terminal 1 to serve passengers flying on seven of the alliance's 15 member carriers who serve the airport:
American Airlines,
Cathay Pacific,
Finnair,
Malaysia Airlines,
Qantas,
Qatar Airways, and
SriLankan Airlines. It is the first in a series of planned lounges under development by the alliance. File:인천공항T1 전경 2024.jpg|Exterior view at Terminal 1 File:인천공항T1 로비 도착 전경 2024.jpg|Interior view at Terminal 1 File:인천공항T1 로비 도착 2024.jpg|Arrivals File:인천공항T1 버스타는곳 2024.jpg|Bus stops
Midfield Concourse The passenger concourse was completed at the end of May 2008. It is connected to Terminal 1 by two parallel underground passageways equipped with IATs (Intra Airport Transit). It has 32 gates and six lounges.
Terminal 2 A new passenger terminal, designed by
Gensler, opened on 18 January 2018, and
Korean Air,
Air France,
Delta Air Lines, and
KLM flights were relocated from Terminal 1 to Terminal 2. Other
SkyTeam members such as
Aeroflot,
Aeroméxico,
China Airlines,
Garuda Indonesia, and
XiamenAir started serving Terminal 2 on 28 October 2018. From 1 July 2023,
Jin Air, the low-cost subsidiary of
Korean Air, started operating at Terminal 2. And the rest of the SkyTeam members, such as
China Eastern Airlines,
Shanghai Airlines, and
Vietnam Airlines will be relocated to Terminal 2 later in the future. From 29 July 2025,
Air Busan started operations at Terminal 2, followed by
Air Seoul (from 9 September 2025) and
Asiana Airlines (from 14 January 2026) relocated to Terminal 2 as well due to the merger with Korean Air. From 13 September 2025,
Scandinavian Airlines started an inaugural flight to Incheon, using Terminal 2. From March 2026,
Virgin Atlantic will start flying into Incheon using Terminal 2 as well. The airport area also has a
golf course,
spa, private sleeping rooms, an ice skating rink, a
casino,
indoor gardens, a video game center and the
Museum of Korean Culture. File:인천공항T2 체크인F 한글조형물반사된 모습.jpg|F ticket check-in File:인천공항T2 입국장(도착,웨이팅).jpg|Waiting / arrivals File:인천공항T2 체크인 대한한공 수속 2024.jpg|Departure & ticketing File:인천공항T2 체크인E 2024 01.jpg|Departure & ticketing File:Incheon International Airport Terminal 2 Self Bag Drop Counter.JPG|Terminal 2 check-in area File:Incheon International Airport (44721041481).jpg|Transit lobby of Terminal 2 File:Incheon Airport Terminal 2 - Departure (50310943117).jpg|Boarding gates ==Airlines and destinations==