First trip to South Korea: how many days, which bases, and Jeju or not

How many days, and how many beds

A first visit works best with fewer moves. Every change of base costs a morning of packing, checking out, getting to the station and finding the next hotel, and in Korea the sights you came for are in the cities, not on the train. Two bases in a week, or three in ten days, leaves time to actually see them.

Seven days: four nights in Seoul and three in Busan. Seoul has more than enough for three full days: the palaces and Bukchon, the markets and Namsan, the riverside or a hike. In Busan, give a day to the old port and the markets, a day to the east coast around Haeundae, and use the third for Gyeongju. Gyeongju is on the high-speed line: VisitKorea gives about two hours by KTX from Seoul Station and about 30 minutes from Busan Station, so you can either stop there for a night on the way south or treat it as a day trip from Busan without moving your bags.

Ten days: keep the same spine and add three nights on Jeju. If you prefer history to beaches, spend two of the extra nights in Gyeongju instead and leave Jeju for a later trip. Fourteen days lets you do both without rushing, or add a slower region such as Jeonju or the east coast. Our 7-day and 10-day itineraries lay out these routes day by day.

Seoul first, then south by KTX

Long-haul flights land at Incheon, an hour west of central Seoul, so the capital is the natural place to start. VisitKorea's 2026 Busan guide puts the KTX from Seoul Station to Busan Station at about three hours on the Gyeongbu Line, and the SRT from Suseo Station in southern Seoul at about two and a half hours. An express bus from Seoul Express Bus Terminal takes about four hours. The train is the better choice for most people: the Gyeongbu Line is the busiest route in the country, and VisitKorea notes that it also serves Daejeon and Gyeongju.

According to VisitKorea, train tickets usually go on sale a month before departure at 07:00, on the KORAIL website and app, at ticket offices and machines. Book the Seoul to Busan leg as soon as your dates are fixed, especially for a Friday, a Sunday or a holiday weekend. If you are considering a Korail Pass (sold to international visitors as a 2-, 3-, 4- or 5-day flexible pass used within ten days), remember that it does not cover the SRT, so a hotel near Suseo makes little sense with a pass. With only one or two long train journeys, single tickets are usually simpler.

The return question is easier than it looks. If you are flying home via another Asian hub, you may not need to go back to Seoul at all: VisitKorea says Gimhae International Airport in Busan has non-stop international flights to 46 cities in 14 countries and regions, including Japan, China, Vietnam, the Philippines and Taiwan. Check whether an open-jaw ticket, into Incheon and out of Gimhae, costs about the same as a return; it saves a three-hour train ride back to the capital.

Should you add Jeju?

Jeju is a volcanic island off the south coast, listed by UNESCO as a World Natural Heritage Site, and it is a different trip from Seoul and Busan: coast, craters, forests and walking trails rather than palaces and markets. It is also an island you reach by air. VisitKorea says most travellers fly from Gimpo in Seoul or Gimhae in Busan, about an hour from the Seoul area, and that the Gimpo to Jeju route is the busiest in the world. Ferries from ports such as Mokpo, Yeosu and Wando take from about two and a half hours to an overnight sailing on VisitKorea's timetables, some with sleeping cabins; they make sense if you want to bring a car or enjoy the crossing, not to save time.

Add Jeju if you have ten days or more and want nature and sea after the cities. Give it at least three nights. The sights are spread around a large island: VisitKorea gives taxi times from the airport of about 40 minutes to Aewol or Hamdeok, 50 minutes to the Jungmun resort area and 80 minutes to Seongsan Ilchulbong on the east coast. Buses run from the airport to Jeju City, Seogwipo, the main beaches and Jungmun, but VisitKorea notes that a rental car is more convenient for the west coast and the inland areas.

Leave Jeju out of a seven-day trip. One night there means two flights and two airport transfers for a single full day, and you will spend it choosing between the east and the west coast. In a week, Gyeongju gives you more for less travel.

Fit Jeju into the route rather than around it: go south from Seoul by train, fly from Gimhae to Jeju, and then fly from Jeju to Gimpo or Incheon at the end. VisitKorea lists flights from Jeju to both Seoul airports, so the last flight of the holiday can bring you back to Incheon for your departure, if the timing works.

Arrival day: what actually happens after you land

Do not count the arrival day as a sightseeing day. When we checked on 2026-10-03, VisitKorea's airport guide listed the non-stop AREX Express Train from Incheon to Seoul Station at about 43 minutes from Terminal 1 and 51 minutes from Terminal 2, and the all-stop train, which also calls at Hongik University Station for Hongdae, at about 59 and 66 minutes. Add immigration, baggage and the walk to the platform, and an afternoon arrival becomes an evening check-in.

Airport limousine buses run to many parts of Seoul and to other regions, but VisitKorea says they accept neither cash nor transport cards: buy a ticket at the counter or machine first. Most public transport from the airport into central Seoul finishes at around 23:30, after which night buses marked N serve a few hubs such as Gangnam Express Bus Terminal and Dongdaemun (DDP). If your flight lands late, book a hotel you can reach on one of those routes, or near the AREX line.

Buy a transport card on the first evening. VisitKorea lists Tmoney and EZL cards at convenience stores nationwide, WOWPASS, which works as a prepaid payment card as well, and the Seoul-only Climate Card for unlimited buses and subway over one to seven days. Our money guide compares them. Check entry rules before you book: Korea's K-ETA temporary exemption for many nationalities has been extended to 31 December 2026, according to the Ministry of Justice's K-ETA site, but it does not apply to every country, and our entry guide explains what to do after that date.

The mistakes that waste a day

Most of these come up on almost every first trip. Each is easy to avoid if you know about it before you go.

• Relying on Google Maps. VisitKorea warns that Google Maps navigation does not work in Korea. Download Naver Map, which VisitKorea describes as Korea's most widely used map, with walking and public-transport routes, or Kakao Map, and test them before you land.
• Turning up at a closed palace. The Royal Palaces and Tombs Center lists Gyeongbokgung and Jongmyo as closed on Tuesdays, and Changdeokgung, Deoksugung and Changgyeonggung on Mondays. Put Gyeongbokgung on a Monday or Wednesday rather than your first Tuesday.
• Booking the KTX late, or over a holiday. Seollal (the Lunar New Year, typically in February) and Chuseok (usually in September or October) are three-day holidays when families gather; VisitKorea notes that at Seollal many Koreans return to their home towns. Book trains as soon as sales open, or avoid long journeys on those days.
• Too many one-night stops. Seoul, Gyeongju, Busan, Jeju and back in seven days looks efficient on a map and feels like a week of check-outs. Drop a stop instead.
• Planning a day trip to Jeju. It is a flight each way plus long transfers on the island. Give it three nights or keep it for the next trip.
• Driving in the cities. VisitKorea recommends the subway over taxis or a rental car in Seoul and Busan. If you do rent a car on Jeju, you need an international driving permit, must be over 21, and pay with a credit card in the driver's name.

When to go for a first trip

VisitKorea recommends spring (March to May) and autumn (September to November) for sightseeing on foot, when the temperature is moderate; autumn averages around 15 °C. It warns that chilly weather often lasts until mid-March, that the rainy season usually runs from the end of June to the end of July, that several typhoons can arrive between June and October, and that winter is cold enough to need thick outerwear at all times.

Prices matter too. VisitKorea's budget guide names July to August and December to January as peak seasons for flights, and notes that most accommodation is cheaper on weekdays than at weekends, so a Sunday-to-Thursday stay in a popular city can stretch the budget. For month-by-month detail, including blossom and foliage timing, see our guide to the best time to visit South Korea.