South Korea

South Korea is a dynamic East Asian destination combining cutting-edge technology with ancient traditions. The country's compact size and excellent infrastructure make it easy to explore, with Seoul serving as the primary international gateway through Incheon Airport—one of Asia's busiest and most efficient hubs.

Incheon (ICN) handles most international traffic and consistently ranks among the world's best airports for service and efficiency. Gimpo (GMP), closer to central Seoul, primarily serves domestic routes and short-haul flights to Japan and China. The country's extensive domestic network connects the peninsula quickly, though the KTX high-speed rail often competes effectively with flights.

Korean Air and Asiana Airlines are the two major full-service carriers, both offering excellent service standards. A thriving low-cost carrier market—led by Jin Air, T'way, and Jeju Air—provides affordable domestic and regional options.

Seoul Area

Seoul has two airports—choosing the right one affects your travel time significantly:

Airport	Code	Distance to Central Seoul	Best For
Incheon	ICN	52 km (32 miles)	International flights, connections
Gimpo	GMP	15 km (9 miles)	Domestic, Japan/China shuttles

Incheon (ICN) — South Korea's main international gateway, located on an island west of Seoul. Two terminals: T1 (most airlines) and T2 (Korean Air, SkyTeam partners, some Star Alliance). Connected to Seoul in 45-60 minutes via AREX express train or airport limousine bus. Consistently rated among the world's top airports for cleanliness, efficiency, and amenities.

Gimpo (GMP) — Seoul's original airport, now primarily domestic with some international routes to Tokyo Haneda, Osaka Kansai, Beijing, and Shanghai. Only 20-30 minutes to central Seoul via subway (Lines 5, 9) or AREX. Preferred when available for Japan/China flights due to city proximity.

Pro tip: For Tokyo connections, Gimpo-Haneda flights save significant time compared to Incheon-Narita.

Other Major Airports

Airport	City	Role
PUS	Busan (Gimhae)	Second-largest city, southeastern gateway
CJU	Jeju	Popular resort island, busiest domestic route
TAE	Daegu	Central Korea hub
CJJ	Cheongju	Central region, some international
MWX	Muan	Southwest Korea, growing international

Busan Gimhae (PUS) — South Korea's second international airport, serving the major port city. Direct flights to major Asian cities, good alternative entry point for travelers heading to the southeast. Connected to city center by light rail and bus.

Jeju (CJU) — The Seoul-Jeju route is one of the world's busiest air routes by passenger numbers, with flights departing every few minutes during peak times. Primarily domestic traffic to the popular vacation island.

Flag Carriers

Korean Air (KE) — South Korea's largest airline and founding member of SkyTeam. Hub at Incheon T2. Extensive network across Asia, Americas, Europe, and Oceania. Known for excellent service and modern fleet. Merged with Asiana in 2024.

Asiana Airlines (OZ) — Star Alliance member (transitioning post-merger). Hub at Incheon T1. Strong Asian network with good connections to the US and Europe. Merged with Korean Air in 2024, but currently operates as a separate brand.

Low-Cost Carriers

South Korea has a competitive LCC market:

• Jin Air (LJ) — Korean Air subsidiary. ICN and GMP bases. Domestic and Asian routes.
• T'way Air (TW) — Independent Korean LCC. ICN and GMP bases. Growing international network.
• Jeju Air (7C) — Largest Korean LCC. GMP and ICN bases. Extensive domestic and Asian routes.
• Air Busan (BX) — Asiana subsidiary. PUS base. Strong domestic network and Asian routes.
• Air Seoul (RS) — Asiana subsidiary. ICN base. International short-haul focus.
• Eastar Jet (ZE) — Independent LCC. GMP base. Domestic and regional.

International Airlines

Major foreign carriers serving South Korea:

• United, American, Delta — US routes via Incheon
• ANA, JAL — Frequent Japan connections
• Singapore Airlines, Cathay Pacific — Asian hub connections
• Emirates, Qatar Airways — Middle East connections
• Air France, KLM, Lufthansa — European routes
• China Eastern, China Southern, Air China — Extensive China network

K-ETA (Korea Electronic Travel Authorization)

Citizens of visa-exempt countries must obtain K-ETA before travel:

Requirement	Details
Cost	₩10,000 (approximately $8 USD)
Validity	2 years, multiple entries
Processing	Usually within 24 hours
Stay duration	Up to 90 days per visit

Visa-exempt countries requiring K-ETA include: USA, Canada, UK, EU/Schengen countries, Australia, New Zealand, Japan, Singapore, and many others.

Apply online: k-eta.go.kr

Visa Required

Citizens of countries without visa exemption agreements must apply at a Korean embassy or consulate:

• Tourist visa (C-3): Short-term visits
• Processing: 5-10 business days typically
• Required documentation varies by nationality

Passport Requirements

• Valid for at least 6 months beyond intended stay
• Return/onward ticket required
• Proof of accommodation may be requested

Arrival Procedures

• Complete Q-CODE health declaration before arrival: cov19ent.kdca.go.kr
• Immigration and customs at arrival airport
• K-ETA linked to passport—no paper printout needed

Official visa information: k-eta.go.kr

Domestic Flights vs. KTX

South Korea's high-speed rail often competes with domestic flights:

Route	Flight	KTX Train	Recommendation
Seoul ↔ Busan	1h 00m + airport time	2h 30m	Train usually faster
Seoul ↔ Daegu	50m + airport time	1h 40m	Train preferred
Seoul ↔ Gwangju	55m + airport time	2h 00m	Close—depends on priorities
Seoul ↔ Jeju	1h 10m	No train	Flight only

KTX (Korea Train eXpress)

South Korea's high-speed rail network connects major cities:

• Gyeongbu Line: Seoul-Daejeon-Daegu-Busan (most popular)
• Honam Line: Seoul-Gwangju-Mokpo
• Gyeongjeon Line: Seoul-Jinju-Masan
• SRT: Private high-speed service from Suseo Station (Seoul) to Busan

Booking:

• letskorail.com (KORAIL)
• etk.srail.co.kr (SRT)
• Korea Rail Pass: Available for tourists, unlimited KTX travel for 2-5 days

Tips:

• Book in advance for weekends and holidays
• Seoul Station connects to AREX for airport access
• Standard and first-class available

Domestic Flights

When flights make sense:

• Seoul to Jeju (no train alternative)
• When KTX is sold out
• LCCs often cheaper than train for advance bookings

Book via airline websites or aggregators like Naver.

Local Transport

• T-money Card: Rechargeable card for subway, bus, taxi, convenience stores. Available at stations and convenience stores.
• Subway: Seoul has one of the world's most extensive metro systems (23 lines). Clean, efficient, English signage throughout.
• Taxis: Affordable and abundant. Base fare around ₩4,800. International taxis (orange) have English-speaking drivers.
• Buses: Extensive networks in all cities. Color-coded by route type.

Peak Season (April-May, September-November)

Spring (cherry blossoms) and autumn (fall foliage) offer the best weather and scenery. Pleasant temperatures, lower humidity. Book flights 2-3 months ahead.

Summer (June-August)

• June-July: Rainy season (jangma)—humid with frequent rain
• August: Hot and humid (30-35°C), but many summer festivals
• Cheaper flights available if you don't mind the weather

Winter (December-February)

Cold and dry, especially in the north (-10 to 5°C). Good for:

• Skiing: Pyeongchang, Yongpyong (2018 Winter Olympics venues)
• Fewer crowds at popular sites
• Lunar New Year (late Jan/early Feb): Many businesses closed, transport busy

Regional Timing

Region	Best Time	Notes
Seoul	Apr-May, Sep-Nov	Avoid summer humidity and winter cold
Busan	Apr-Oct	Coastal, milder winters
Jeju	Apr-Jun, Sep-Oct	Subtropical, good year-round
Ski Resorts	Dec-Feb	Best snow conditions

Cities

City	Nearest Airport	Known For
Seoul	ICN, GMP	K-pop, palaces, shopping, nightlife
Busan	PUS	Beaches, seafood, temples, film festival
Jeju	CJU	Volcanic island, resorts, nature
Gyeongju	PUS (1hr bus)	Ancient Silla kingdom, UNESCO sites
Jeonju	GMP/Gunsan	Traditional hanok village, bibimbap
Gangneung	GMP + KTX	East coast beaches, 2018 Olympics

Regions

• Seoul/Gyeonggi: Capital area, mix of modern and traditional
• Gyeongsang (Busan, Gyeongju): Southeast coast, historical sites
• Jeju Island: Volcanic landscapes, beaches, honeymoon destination
• Gangwon: Mountains, skiing, east coast beaches
• Jeolla (Jeonju, Gwangju): Food culture, traditional arts

Day Trips from Seoul

• DMZ (Demilitarized Zone): 1 hour north, guided tours only
• Suwon: 30 min KTX, UNESCO Hwaseong Fortress
• Incheon: 1 hour, Chinatown, coastal areas
• Nami Island: 1.5 hours, scenic island famous from K-dramas

Money

• Currency: Korean Won (KRW, ₩)
• Cards: Widely accepted. Visa/Mastercard preferred, Amex less common
• Cash: Still useful at markets and small shops. ATMs at convenience stores accept foreign cards
• Exchange: Banks and licensed exchange offices. Myeongdong in Seoul offers competitive rates
• Tipping: Not customary. Service charge included at upscale restaurants

Connectivity

• Mobile: SK Telecom, KT, LG U+
• SIM/eSIM: Tourist SIMs available at airports. eSIM supported (Airalo, Ubigi work well)
• Pocket WiFi: Rental counters at Incheon Airport
• Free WiFi: Excellent coverage—airports, subway, most cafes and public areas

Electrical

• Voltage: 220V / 60 Hz
• Plug type: Type C (two round pins) and Type F (Schuko with grounding clips)
• Note: Travelers from US, UK, Australia need adapters. Most phone chargers and laptops are dual-voltage (100-240V) and only need plug adapters

Language

• Korean (Hangul script) is the official language
• English signage at airports, major stations, tourist areas
• Younger generation often speaks some English
• Papago app (by Naver) recommended for translation—often better than Google Translate for Korean
• Useful phrases: annyeonghaseyo (hello), gamsa-hamnida (thank you), eolmayeyo? (how much?)

Cultural Notes

• Remove shoes when entering homes and some traditional restaurants
• Bow slightly when greeting, especially elders
• Pour drinks for others, not yourself
• Age hierarchy matters in social situations
• Avoid writing names in red ink

Useful Apps

• Naver Map: Better than Google Maps for Korea (more accurate transit, local businesses)
• KakaoMap: Alternative mapping with good public transit
• KakaoTalk: Dominant messaging app in Korea
• Papago: Korean-English translation
• Subway Korea: Seoul metro navigation

• Tourism: Visit Korea
• K-ETA: k-eta.go.kr
• Q-CODE: cov19ent.kdca.go.kr
• KORAIL: letskorail.com
• Incheon Airport: airport.kr
• Korea Meteorological Administration: kma.go.kr
• Korea Tourism Hotline: 1330 (multilingual assistance 24/7)