South Korea travel checklist: what to do before you go

This is the paperwork window. Everything here can be done online in an evening, but passport renewals and visa appointments are the two things that can derail a trip if you leave them late.

Start with your passport. South Korea expects it to be valid for your whole stay, and most airlines and immigration officers prefer six months of remaining validity, so renew now if you are close. Then confirm which entry route applies to your passport: visa-free short stay, K-ETA electronic authorisation, or a visa applied for at a Korean embassy or consulate. Rules and eligible nationalities change, so verify on an official government or immigration site rather than a blog.

With documents in hand, book the long-haul flight. Incheon (ICN) is the main gateway and the AREX train runs to central Seoul; Gimpo (GMP) handles mostly short-haul Asia routes. For April–May cherry blossom season and October foliage, fares climb early, so two to four months ahead is a reasonable target. Book a refundable or changeable Seoul bed at the same time — Myeongdong and Hongdae are the usual first-trip bases.

Buy travel insurance now, not at the airport. Check that the policy covers medical treatment in Korea, evacuation, and any activity you have planned such as hiking Hallasan or skiing. Keep the policy number somewhere you can reach offline.

If you are adding Busan or Gyeongju, decide the rail plan. KTX seats on the Seoul–Busan line sell out around holidays such as Chuseok and Seollal, and on Friday evenings year-round. Booking a month ahead usually gets you the departure you want. If you are staying longer than a tourist trip, look at the digital nomad route separately.

Sort money and connectivity. Cards are accepted almost everywhere in Korea, including taxis and convenience stores, but a small amount of won cash helps at traditional markets. Order a T-money transit card or plan to buy one at the airport; it covers subway, bus and taxi. Check whether your phone supports a Korean eSIM or a local SIM, and set up a translation app for Hangul menus.

Health: routine vaccinations should be current, and any prescription medicine should be in original packaging with a copy of the prescription. Korea has excellent hospitals and pharmacies, but bringing your own supply avoids a language problem on day one.

Re-check the entry rules one last time — K-ETA approvals, visa validity and any health or quarantine requirements can change. Save screenshots of your approval, booking confirmations and insurance in one offline folder.

Pack for the season you are actually getting. Korea has four sharp seasons: hot, humid summers with a rainy spell in late June and July; cold, dry winters that drop well below freezing; and short, mild spring and autumn windows. Layers, a compact umbrella and comfortable walking shoes cover most trips. Bring a Type C or F plug adapter and any medication you cannot buy easily.

Tell your bank you are travelling so the card does not get blocked, and download offline maps for Seoul and any second city. Learn two phrases — hello and thank you — and save the 1330 travel helpline in your phone. Finally, print or save your first-night address in Korean so a taxi driver can read it.

Arrive at the airport with the usual three hours for a long-haul flight. Have your passport, K-ETA or visa and return ticket ready at check-in, because airlines verify entry eligibility before boarding.

On landing at Incheon, immigration and baggage can take 45–90 minutes at peak times. Buy or top up a T-money card, withdraw a small amount of won from an ATM, and take the AREX train into Seoul rather than a taxi if you are heading to the city centre. If you land after 22:00, check the last train time and have a backup plan.

Keep the first day light. Jet lag plus a new alphabet is enough; a short walk, a convenience-store meal and an early night set you up better than a packed schedule.