Incheon ICN Airport Terminal Map Overview

Main Terminal / Concourses at Incheon ICN Airport

Layout of the Incheon Airport's Passenger Terminal & Concourse, Services & Amenities, Detailed Transfer Information, and Train/ Subway Connections from the Airport:  

Presently, Incheon International (IIA) has one four-level passenger terminal with separate Concourse A (Terminal 2 is to open in 2017). The 4-level terminal houses 44 boarding ports able to accommodate the Airbus 380, 50 customs inspection areas, 6 stationary & 14 portable passenger quarantine & 2 biological quarantine counters, 8 arrival & 28 departure security posts, 252 check-in counters and 120 passport inspection posts.
The Pine Tree Garden in the Millennium Hall, on the first level, offers a respit for weary travelers with pine trees, quiet ponds and beautiful flora. Five other smaller gardens are disbursed within the terminal.
Airline service is divided into East & West Wings (Korean Air check-in counters are  at counters A, B & C;  all domestic airlines are at counter A;  Asiana is at L & M, Star Alliance members are at G, H, J & K; and all other airlines are either at G - K or D - F counters). 
Departure gates 1 - 4 require customs declaration, security check & immigration desk. Passengers departing from gates 101-132 take the shuttle train to more distant Concourse A. 
Level 1 with exit doors 1 -14 (right to left) houses International Arrivals A - F and check-in counters A - M, and has a meeting point, currency exchange, dressing room, transfer security check, 2 large baggage carousels, & immigration desk.
Level 2 serves as gateway to gates 1 through 50 (right to left) and to attached concourses with gates 29-41 to the left and gates 12-25 to the right,  and gates 26-28 in the center; between gates 28 & 27 is the shuttle connecting to level 2 of the Concourse, level 2 with an information both in front of both concourses. 
Level 3, with Departure gates 1-50 houses the shuttel train stations for either the east or west wing of Concourse A - note, however, that service is only to, not from the concourse.
Level 4 houses Korean & Asiana airline lounges, has transfer desks, Transit Hotel (see Services below), & prayer rooms.
Concourse A (a separate building) Concourse A is Intended for international airlines - connected to the Main Terminal by two parallel-runing long underground passageways - continuously served by the shuttle Starline train at level B1.  On level 3, at gate 117, it divides into a West Wing with gates 118-132, and an East Wing with gates 101-115  - while its Center also connects to gates 28/27 of the Main Terminal's level 2. 
Airline Lounges are on level 4 of Concourse A houses the airline lounges - serving  Asiana & Star Alliance; Korean Air & Sky Team; Cathay Pacific & Oneworld members.

Services and amenities in the passenger terminal & Concourse A: The Integrated Information Center in the Arrivals Hall offers a one-stop service for all inquiries (in English, Japanese, Chinese & Korean), which will be combined with automated information systems. The Transit Hotel on level 4 (East & West Wings) (tel. 82-32-743-3000 offer 96 rooms, shower rooms, Business Center & personal gym.
Services are abundant and of a high quality; they include banking & currency exchange, internet services, business lounges, food & drink establishments, duty-free ('Airstar Avenue') and retail shops (including 2 department stores), business lounges, and services for mobile phones, postal needs, luggage storage, courier, hair & beauty, laundry, sauna/spa, nursery & children's playroom, smoking room, car wash, medical services, an eye-care center and pharmacies.
    Business Lounges include the BC Card Lounge at level 4, Central area, and the Hyundai Card Air Lounge at level 2, Central area.

[New Terminal 2 is under construction - to be partially completed by 2018.]

Transfer Passengers (including to Gimpo Airport):  (Transfer passengers may also want to use the Transit Hotel on level 4).
1. Transfer Passengers arriving at the Main Terminal and transferring to either to a domestic or an international flight, must proceed to the nearest transfer point. After passing the transfer security screening checkpoint, proceed to level 3F of the main terminal. Check the screens for your next airline departure.
    (a) Passengers transferring to a domestic flight (gates 1 to 50, Korean & Asiana airlines), who don't have a ticket yet  must proceed to the transfer desk first. With your transfer ticket go to your boarding gate 30 mins before scheduled departure.
    (b)  Passengers  transferring to an international flight (gates 1 to 50 for all airlines except Korean & Asiana) must proceed to the B1 level to board the shuttle train to Concourse A and take the escalator up to level 3F. Those who do not have a ticket yet for the next flight must first go to the transfer desk. With a ticket in hand, proceed to your boarding gate.
2. Transfer passengers arriving at the Concourse - transferring within the Concourse must proceed to the nearest transfer point. Check the screens for your next airline departure.
    (a) Passengers connecting to another international flight (any airlines other than Korean & Asiana - transfer within Concourse, gates 101-132) must pass the transfer security screening checkpoint and proceed to level 3F. (Passengers without a transfer airline ticket must proceed to the transfer desk). 30 mins. prior to your departure time, go to your boarding gate.
    (b) Passengers transferring to a domestic flight must proceed to the basement level B1 to catch the shuttle train to the Main Terminal; take the escalator up to level 2F & go through security screening checkpoint, then proceed to level 3F. (Passengers without a transfer airline ticket must proceed to the transfer desk first.) then go to your boarding gate 30 mins before scheduled departure.
3. Transfer to Gimpo Airport:  
The Incheon International Airport Expressway
130 also connects with Gimpo Airport, providing connections between the domestic and international   flights.
   (b) The Incheon International Airport Railroad  (lines 5 & 9) connects Incheon Airport  to Gimpo Airport in a mere 30 minutes.

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