You've landed at Incheon. Your semester starts in four days. You have a suitcase, a phone with 15% battery, and approximately zero idea what you're doing. Here's the exact order in which to do everything during your first 48 hours in Seoul — built from the experience of hundreds of exchange students who've done this before you.

Hour 0–2: Airport → Apartment

Take the AREX (Airport Railroad Express) from Terminal 1 or 2 to Seoul Station, then switch to whatever subway line reaches your neighbourhood. A T-Money transit card (available at any convenience store or subway kiosk) is essential — tap it on everything and top it up at any 7-Eleven or CU. The entire airport-to-apartment journey usually costs under ₩5,000 by train.

Avoid the airport limousine bus on your first trip. It's comfortable but slower, and you'll be exhausted and disoriented with heavy luggage.

Hour 2–4: SIM Card

This is your highest priority. Without a Korean number, you can't verify apps, receive bank codes, or order food delivery. Pick up a prepaid SIM at the airport (SKT, KT, and LG Uplus all have kiosks near arrivals) or at any convenience store near your apartment. For a semester, a monthly plan from around ₩30,000–₩55,000 gives unlimited data with unlimited calls. Bring your passport.

Hour 4–24: Rest, Explore, Eat

Don't try to do everything on day one. Unpack, rest, then walk your immediate neighbourhood to locate the nearest: convenience store (GS25, CU, or 7-Eleven — you'll use these daily), subway station (memorise the exit numbers), pharmacy (약국, yakguk), and laundromat if your building doesn't have washing machines.

For your first dinner, Baemin (배민) and Coupang Eats are Korea's main delivery apps. Both work without a Korean bank account if you pre-load with a foreign card. Alternatively, just walk to the nearest 김밥천국 (Kimbap Cheonguk) — cheap, fast, and genuinely good.

Day 2 Morning: Bank Account

Opening a Korean bank account is significantly easier than the internet makes it sound — if you go to the right branch. KakaoBank has an English-language app that allows some foreigners to open accounts without visiting a branch. For in-person options, Shinhan and KEB Hana are the most foreigner-friendly. Bring: passport, alien registration card (if you have it already), and your Korean phone number.

If your ARC isn't ready yet, KakaoBank or Toss (토스) sometimes allows card issuance with just a passport and phone number — worth trying.

Day 2 Afternoon: Essential Apps

Download these now — you'll use every single one within your first week:

Naver Maps — better than Google Maps for Korea; shows bus times, walking routes, subway transfers
KakaoTalk — Korea's iMessage; every professor, classmate, and landlord will contact you here
Baemin or Coupang Eats — food delivery
Papago — Naver's translation app, far better than Google Translate for Korean
Korea Subway — offline subway map with fare calculator

One Week In: Alien Registration Card

If you're staying longer than 90 days, you need an Alien Registration Card (외국인등록증) from the Immigration Office. Book your appointment online at hikorea.go.kr before you arrive — slots fill up fast at the start of each semester. You'll need your passport, D-2 visa, a passport photo, and the application fee (~₩30,000). Processing takes about 2–3 weeks.

Forty-eight hours sounds short, but it's enough to get the infrastructure of your new life in place. The rest — making friends, finding your favourite restaurant, figuring out which subway line you actually live on — that part takes care of itself.

How to Set Up Your Life in Seoul Within 48 Hours