The Foreigner’s Complete Guide to Public Transportation in South Korea (2026)
Your no-fluff, real-world guide to getting around Korea like a local — from the T-money card in your pocket to knowing exactly which side of the escalator to stand on.
So you’ve landed in Korea. Maybe it’s Incheon International Airport, maybe it’s Gimhae in Busan. Either way, you’re about to discover that Korea has one of the most efficient, affordable, and well-connected public transportation systems in the entire world. Buses run on time, subways are spotless, and getting from one end of Seoul to the other costs you less than two dollars.
But there’s a learning curve. The apps are different. The etiquette is real. And if you try to pay cash on a bus, you’re going to have a bad time. This guide covers everything — no assumptions, no jargon — just practical, honest advice for navigating Korea’s public transit like someone who actually lives there.
Getting Your T-money Card — The First Thing You Should Do:
Before you even leave the airport, get a T-money card. This little rechargeable transit card is your golden ticket to buses, subways, and even taxis across Korea. Think of it like an Oyster card in London or a Suica in Tokyo — it’s not optional, it’s essential.
You can pick one up at virtually any convenience store — GS25, CU, 7-Eleven, MINISTOP, Emart24, or Story Way. There are also kiosks inside subway stations. The card itself costs around ₩3,000, and that fee is non-refundable. It’s just the cost of the card. You’ll also want to grab the Korea Tour Card if you’re a tourist passing through — it looks identical to a T-money card but comes with discount perks at tourist attractions, shopping, and restaurants. It costs ₩4,000.
If you’re already a fan of digital wallets, good news: as of mid-2025, T-money is available on both iPhone and Android through the T-money GO app. You can create a digital card, top it up with a Visa or Mastercard, and add it to Apple Wallet or Samsung Pay. This is a huge upgrade from what used to be a cash-only system.
How to Recharge (Top-Up) Your Card:
Topping up your T-money card is dead simple once you know where to go. You have four main options.
The first and easiest is a convenience store. Walk in, hand your card to the cashier, tell them how much you want to add (in multiples of ₩1,000), pay in cash, and you’re done. Most convenience store staff have done this ten thousand times and will handle it in seconds.
The second option is the ticket vending machines inside subway stations. These are multilingual — look for the English option on the screen. Select the T-money reload function, place your card on the reader pad, choose your amount, insert cash, and you’re good to go.
Third, there are newsstands near bus stops that display the T-money logo — these can be helpful if you’re running low on balance and not near a station.
Fourth, for those using the digital card, you can top up directly in the T-money GO app using a foreign credit card.
The maximum balance allowed on your T-money card at any time is ₩500,000, and you can add anywhere from ₩1,000 to ₩90,000 per transaction.
Getting a Refund on Leftover Balance:
Heading home with ₩15,000 left on your card? You can get that back. Here’s how it works.
Go to any convenience store or T-money service counter (found inside major subway stations) and ask for a refund. The staff will return your remaining balance in cash. However, there are two important things to know: the ₩3,000 card purchase fee is not refunded, and there’s a ₩500 service fee deducted from your balance.
For partial refunds (i.e., if you want to keep the card but pull some money out), those are only available at T-money Town (located at Seoul Station, Exit 10) or at T-money service centers inside subway stations. Partial refunds are only possible for amounts between ₩10,000 and ₩50,000, and they’re given in units of ₩10,000. So if you have ₩35,000 on the card, you can withdraw ₩30,000 and keep ₩5,000 on it.
Pro tip: Before your trip ends, try to spend your balance down. Grab a coffee at a GS25, pick up some snacks — T-money works at most convenience stores and many retail shops.
How Much Does It Cost to Get Around?
Korea’s public transit is genuinely cheap. As of June 28, 2025, the base fares were updated:
Subway (T-money card):
- Adults: ₩1,550 for the first 10 km
- Teenagers (13–18): ₩720
- Children (6–12): ₩440
- Early morning discount (before 6:30 AM): Adults pay ₩1,240
Single-journey subway ticket (cash, no card):
- Adults: ₩1,650 (includes a ₩500 refundable deposit you get back from the machine on exit)
Bus:
- Seoul city buses (T-money): around ₩1,500–₩2,400 depending on the bus type (regular city, express, or wide-area bus)
- Cash is not accepted on Seoul buses as of March 2023 — card only
Important note on cash vs. card: Always use a T-money card. Not only is cash banned on most buses, but card users save money versus single-journey tickets and also benefit from the transfer discount system described below.
The Transfer Discount System — How Korea Saves You Money:
This is one of the most underappreciated features of Korea’s public transit. When you tap your T-money card correctly, you can transfer between buses and subways for free (or nearly free) — as long as you follow the rules.
Here’s how it works: when you tap out of a subway or off a bus, the system logs the time and distance. If you tap into another bus or subway within 30 minutes (or within 1 hour between 9 PM and 7 AM), the system considers this a transfer and only charges you for the additional distance traveled beyond the first leg. The discount amounts to around ₩100 or more per transfer, and you can enjoy up to 4 transfer discounts per day.
The critical rules are:
- You must tap out (tag off) when exiting a bus. If you forget, the system has no idea where you got off, and you’ll lose the transfer benefit — plus potentially be charged the maximum distance fare.
- Transferring to a bus running the same route number doesn’t count.
- Re-entering the same subway station right after you exited doesn’t count either.
- Transfer discounts apply across subway-to-bus, bus-to-subway, and bus-to-bus combinations.
Think of it this way: if you take a bus, hop on the subway, and then catch another bus — all within 30 minutes between legs — you essentially pay one base fare plus any extra distance charges. For a city like Seoul, this makes getting around remarkably affordable.
Subway and Bus Etiquette — Please Don’t Be That Tourist:
Korea’s public transit culture is quiet, orderly, and deeply courteous — and as a visitor, you’ll stand out immediately if you don’t know the unwritten rules.
On the subway, keep your voice low. Phone calls are technically allowed but deeply frowned upon — most locals will step away to quieter areas or keep conversations extremely brief. Eating on the subway is not officially banned, but it’s considered rude and you’ll get looks. The same goes for loud music without earphones.
Priority seating is taken very seriously. Every subway car has designated seats in a distinct color — typically blue or a different shade from regular seats — at both ends of the car. These are reserved for elderly passengers, people with disabilities, pregnant women, and those traveling with young children. In Korea, these seats are treated as genuinely reserved, meaning they are often left empty even on a packed train, out of respect for whoever might need them. As a foreigner, sitting in these seats when the train is crowded will draw quiet but unmistakable disapproval. Even if no elderly or pregnant person is in sight, it’s best practice to avoid them entirely.
Pink seats are specifically designated for pregnant women and are found in the middle sections of each car. They’re marked with a clear pink color and symbol. Same rule applies — leave them empty.
When boarding, don’t push. Koreans are extraordinarily organized about queuing. You’ll notice marked lanes on the platform floor that indicate where to stand and wait. Let passengers exit the train first — always — before you try to get on. This isn’t just politeness, it’s how the system moves efficiently.
On buses, tap your card when you board and again when you exit. Sit quietly, give up your seat for those who need it more, and don’t talk to the driver unless absolutely necessary.
Escalator Culture — Stand Right, Walk Left:
This one surprises a lot of visitors. Korea has a very clear, very enforced escalator culture, and ignoring it will get you silently glared at by half the platform.
The rule is simple: stand on the right side, walk on the left. If you’re in a hurry or just prefer to walk up or down the escalator, take the left lane. If you’re standing still, hug the right side and leave the left lane open.
This is especially important in busy subway stations during rush hour. The left lane is what Koreans call the “빨리빨리 (palli-palli) lane” — the “hurry hurry” lane — and people genuinely use it. Blocking the left side of an escalator during morning commute hours in Hongik University station or Gangnam is the transit equivalent of cutting in line. You’ll know you’ve made a mistake by the polite but unmistakable energy of the commuter behind you.
Also worth noting: Korea drives on the right side of the road, and people generally walk on the right side of footpaths and corridors too. When you’re navigating through station corridors, stick to the right — this keeps foot traffic flowing smoothly and stops you from walking head-on into the sea of morning commuters.
How to Check Bus and Subway Arrival Times:
You don’t have to guess or just wait — Korea’s real-time transit tracking is excellent, and you have multiple ways to access it.
For subway, every station platform has real-time digital displays showing exactly how many minutes until the next train and the one after. This alone is enough for most trips. If you want to plan before you leave, apps give you live updates.
For buses, real-time arrival information is displayed on digital signboards at most bus stops in Seoul and major cities. The sign shows the bus number and how many stops away it currently is. This is live data, not a scheduled estimate.
App-wise, the two best options are Naver Map and KakaoMap, both of which have strong English support as of 2025. Naver Map is generally considered more beginner-friendly for foreigners and gives you step-by-step transit directions including which exit to use, how long to walk, and when your bus will arrive. KakaoMap offers an interesting feature that shows how crowded a bus currently is, which is a nice extra during peak hours. Both apps show real-time subway and bus arrival times.
There are also dedicated apps worth knowing about — KakaoMetro for detailed subway navigation and KakaoBus for bus tracking — both free and available in English.
Why You Should Ditch Google Maps in Korea:
Let’s be direct about this. Google Maps is great in most of the world. In South Korea, it’s significantly less reliable for transit navigation, and here’s why: Korean map data is legally restricted from being fully exported to foreign servers due to national security regulations. This means Google’s maps of Korea lack real-time bus data, accurate transit routing, and precise local business information that Naver and Kakao have.
Naver Map and KakaoMap are built on complete, real-time Korean data. They know about road closures, bus reroutes, exact walking distances to exits, and live arrival times. Google Maps doesn’t have access to most of this.
Practically speaking, if you type in a subway station on Google Maps and follow its walking directions to the exit, you might find yourself at the wrong exit — which in a station like Sinchon or Jamsil can mean a 10-minute detour. Naver and Kakao tell you specifically which exit number to use and show you the exact path.
Both Naver Map and KakaoMap are free to download on iOS and Android, work in English, and are the apps that every expat and frequent visitor swears by. Set Google Maps aside for your Korea trip — at least for transit.
Bonus Tips for Getting Around Smoothly:
A few final things that don’t fit neatly into the categories above but will genuinely make your trip easier:
Keep your T-money card easily accessible — fumbling with a wallet while 40 people queue behind you at the turnstile is a real experience you want to avoid. A card holder on the outside of your bag or a phone wallet works great.
If your T-money card balance runs low mid-journey and you don’t have enough to exit the subway, you won’t be stuck — most stations have a “fare adjustment machine” near the exit gates where you can top up just enough to leave.
The Climate Card (기후동행카드), introduced in early 2024 and still running, offers unlimited rides on Seoul subways, buses, and bikes for a flat monthly fee of ₩65,000. If you’re staying in Seoul for a month or more, this pays for itself quickly. It’s available through the Seoul Metro app and at station service centers.
Lastly, if you’re ever lost or confused inside a subway station, find the Information Center — every major station has one, staffed by attendants who are accustomed to helping foreign visitors and will be patient with you even with a language barrier.
