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Data source: OurAirports (2026-09-01 Snapshot) · Methodology & Verification →

Seoul Gimpo International Airport

Seoul, Seoul-teukbyeolsi (Seoul Special City) (South Korea)

IATA: GMP ICAO: RKSS

Longest Active Runway

11,811 ft

3,600 meters

Field Elevation

59 ft

18 m MSL

Runway Inventory

2 active

Lighted / Paved

Coordinates & Class

37.5583°, 126.7910°

LARGE AIRPORT

🏆

Multi-Universe Rankings & Statistical Standing

Ranking Universes Guide →

RunwayFacts Published Dataset

#246 of 650

In curated primary commercial index

Global Commercial Universe

#387 of 7558

Top 5.2% percentile worldwide

National Standing (South Korea)

#2 in KR

#2 of 26 in full national registry

vs Large Airport Median

+18.1%

Compared to 10,000 ft baseline

💡 Statistical Statement: Seoul Gimpo International Airport's longest active runway measures 11,811 ft (3,600 m). Within RunwayFacts' published index of 650 aerodromes, it ranks #246. Across the broader global dataset of 7558 commercial facilities, it ranks #387 worldwide (Top 5.2%) and #2 nationally in South Korea.

🔬 Operational & Aerodrome Engineering Comparative Analysis

Comparative aviation metrics evaluated against regional and global physical operational criteria.

ICAO Code 4E / 4F Super-Heavy

⛰️

Elevation & Atmospheric Density

Lowland / Coastal Basin Aerodrome

Positioned at 59 ft (18 m MSL), this aerodrome operates near standard International Standard Atmosphere (ISA) sea-level air density. High ambient air pressure provides optimal turbine thrust conversion, maximum wing lift coefficients, and minimal ground roll distance requirements, allowing long-haul flights to depart at maximum structural takeoff weight limits without atmospheric density penalties.

🧭

Regional Density & Alternates (100 NM)

1 Qualifying Aerodrome in Vicinity

Within its 100 NM cluster of 1 neighboring aerodromes, Seoul Gimpo International Airport is supported by major regional alternatives. Notably, Incheon International Airport (ICN) lies just 17.1 NM away with a 13,123 ft runway, offering reliable operational redundancy for commercial diversions and congested airspace rerouting.

✈️

Fleet Compatibility & Ground Roll

Primary Runway: 11,811 ft (3,600 m)

With its longest runway exceeding 10,500 ft (3,600 m) and paved surface engineering, Seoul Gimpo International Airport meets the operational runway criteria for unrestricted long-haul operations by Code 4E and 4F heavy widebody aircraft, including the Airbus A380-800, Boeing 747-8, Airbus A350-1000, and Boeing 777-300ER at high operational weights.

🛫 Physical Runway Inventory & Surface Engineering

Runway Designator	Length (ft / m)	Width (ft / m)	Surface Material	Lighting	Status
14L/32R	11,811 ft (3600m)	148 ft (45m)	`Asphalt (ASP)`	✅ Lighted	✅ Active
14R/32L	10,499 ft (3200m)	197 ft (60m)	`Asphalt (ASP)`	✅ Lighted	✅ Active

🧭 Comparative Aerodromes (100 NM Radius, ≥5,000 ft Paved)

Great-circle Haversine spatial proximity matching for commercial facilities with paved runway capacity within 100 NM.

Aerodrome Name	IATA	Distance	Longest Runway	Lighting
Incheon International Airport (Seoul)	`ICN`	17.1 NM (31.7 km)	13,123 ft	✅ Lighted

🛡️ Data Provenance & Verification Metadata

Source Dataset: OurAirports Open Aviation Database

Snapshot Version: 2026-09-01

Dataset Integrity: Cryptographic SHA-256 Checksum Verified & Fail-Closed Schema Inspected

Source Verification: Source-reported registry data

Read Complete Methodology & Verification Protocol → GET /api/airport/gmp.json ↗