One map, pinned from each airport’s published coordinates.
Category scores
Overall is the published weighted sum. A highlighted score is ahead; a tie stays plain.
Ease of use
25% · Wayfinding, security wait, and layout.
CJJ7.0
GMP8.4+1.4
Comfort & amenities
20% · Seating, Wi-Fi, cleanliness, and quiet.
CJJ6.0
GMP7.2+1.2
Food & retail
Best for
CJJ
Aero K / LCC Japan and Taiwan banks skipping ICNCheongju / Daejeon / Sejong domestic Jeju trafficTravelers using Cheongju Airport Station (Chungbuk Line)
Watch out for
CJJ
No Priority Pass product — PP KR list excludes CJJJoint civil–military field — photography often restrictedNo published MCT
Amenities and tips
CJJ
Aero K / LCC international banksCheongju Airport StationTerminal F&B (no PP lounge)
Aero K LCC hub + dense Jeju domestic
Aero K / Eastar / T’way base with heavy CJJ–CJU frequency plus Japan and SE Asia internationals.
CJJ · Chungcheong / Daejeon–Sejong gateway and **Aero K · Eastar Jet · T’way** operating base with dense **Jeju (CJU)** domestic banks plus Japan / Taiwan / SE Asia / China internationals — joint civil–military plant; **no Priority Pass lounge** (PP South Korea lists only PUS/CJU/GMP/ICN).
GMP · Seoul’s close-in city airport: five rail lines and a 22-minute AREX hop to Seoul Station, split domestic/international halls with no sterile link, a Jeju-heavy domestic bank, city-pair international only, and a hard 23:00–06:00 curfew. Priority Pass is one international Sky Hub room.
15% · Food and retail quality and variety.
CJJ5.6
GMP7.6+2.0
Ground access
15% · Transit, taxi, and parking to the city.
CJJ6.6
GMP9.0+2.4
Reliability
15% · Delays, cancellations, and weather resilience.
CJJ6.8
GMP7.4+0.6
Lounges
10% · Worth-it density and access quality.
CJJ3.6
GMP5.8+2.2
GMP
Seoul city-pair hops to Haneda, Kansai, Hongqiao, SongshanDomestic Jeju/Busan without the ICN trekTravelers who will actually use AREX or Line 9
No invented KRW bottle prices — omitted
GMP
23:00–06:00 civil curfew (wheels-on; late inbounds divert to ICN)No sterile walk between domestic and internationalPriority Pass is international-only (Sky Hub)2017 “second domestic terminal by 2025” is not an open hall
Joint civil–military single terminal
KAC passenger plant shared with ROKAF — compact curb-to-gate; photography often restricted.
Cafe-scale; no PP lounge
Terminal F&B only — Priority Pass does not list CJJ.
GMP
Gimpo Airport Station (5 lines)Lotte Mall Gimpo AirportSky Hub LoungeGimpoAir_FreeWiFiMaternity lounges with purifiersBioPass domestic 3F lanes
Treat 23:00 as wheels-on, not as a boarding time
Gimpo’s civil curfew is 06:00–23:00 KST; a late inbound is more likely to divert to Incheon than to sneak onto 32R.
Domestic and international are different buildings
There is no airside walk. Wrong hall means a landside shuttle or the basement moving-walk to the other terminal, then a second security (and immigration on the international side).
Eat landside at Lotte Mall if you have 45 minutes
Lotte Mall Gimpo Airport is attached and posted 10:30–22:00 daily (mall; restaurants and cinema differ). Airside food is thinner, especially international.
