Domestic flights: Most domestic destinations are within an hour's flight from Seoul. Gimpo Airport, located between the western area of Seoul and the newer Incheon International Airport, is primarily used for domestic travel. Korean Air and Asiana Airlines handle all domestic flights.
Railway services: The Korea Railroad (KORAIL) operates three types of trains - super-express, express, and local - along an extensive nationwide network. Super-express (KTX) trains link Seoul with Busan, Mokpo, East Daegu, Gwangju and Iksan. Most popular destinations in the nation can be reached via direct line or a single transfer. Many express trains include dining cars. Local trains make frequent stops.
Local and city bus services: A regular intercity bus network, as opposed to the long distance express bus network, connects virtually all cities and towns in the country. Regular intercity buses, which make frequent stops, are the least expensive way to travel around the country. To help relieve traffic congestion and encourage use of mass transportation, exclusive bus lanes are enforced during busy hours in busy streets and expressways. Seoul and several other major cities have different types of bus service. Some go beyond city limits into nearby suburbs and satellite cities. Bus fares range from 500 to 1,500 won(US$0.52~$1.57). Buses running in the city and into the suburban cities are numbered according to their routes. (The website www.tour2korea.com has detailed information. Click on "Transportation.")
Long distance express buses: Long distance express buses go directly to their destinations, stopping only at expressway rest areas every few hours. Two types of buses link every major city in the country. Regular intercity buses have four seats from side to side. The more-expensive deluxe buses have only three seats from side to side and offer amenities such as mobile phones and movies. Some lines run late-night deluxe express buses as well. Seoul has three intercity terminals providing service to different parts of the country - the main Express Bus Terminal and Nambu Bus Terminal on subway Line 3 in Gangnam and the Dong (East) Seoul Bus Terminal near Gangbyeon Station on Line 2. Busan's Express Bus Terminal is in its eastern downtown area.
Subway services: The subway is the most efficient and convenient way to get around Seoul, Busan, Daegu, Gwangju, Incheon and Daejeon. The subway system has developed into these cities' main transportation system and continues to provide a fast, safe, and comfortable means of transportation. In Seoul, it links all neighborhoods with the outlying areas and satellite cities. On the intercity network, trains operate at intervals of 2.5 to 3 minutes during the morning and evening rush hours, and intervals of 4 to 6 minutes during non-peak times. Fares vary according to destinations, with a basic fare of 900 won (US$ 0.94) in cash.
Taxi services: There are two kinds of taxis - regular and deluxe. Fares are based on distance and time. The black deluxe taxis are more comfortable, provide better service and, of course, charge more than the regular gray taxis, but nearly all taxis are equipped with a third-party interpretation system that can be accessed by cell phone.
Car rental: Driving can be an exciting and effective way of getting around Korea. Extensive road and expressway networks are available, which means you can visit every corner of the country. Road numbers and destinations are clearly indicated on road signs. Drivers must meet the following requirements: have more than one year's driving experience, possess an international driver's license valid for a year from the date of entry, be at least 21 years old and possess a valid passport.
Rental fees vary from 68,000 to 265,000 won (US$ 71.5~$ 278.9) per day, depending upon the type of car. The speed limit is 60km/hr for most roads in the city and 80-100km/hr for city expressways. Driving under the influence of alcohol or drugs is a felony that may result in a heavy penalty.
Ferry services: One of the most pleasant ways to see Korea, routes are available between Busan and Jeju-do Island, Mokpo and Hongdo Island and Pohang and Ulleungdo Island. There are ships making runs between Busan and Yeosu, with many in-between stops possible at ports along the south coast and the Hallyeo Maritime National Park.