Seoul labels its transport network in more than one script, and that is exactly what catches people out. The subway is signed in several languages, the trains talk to you in four, and the first two hours feel easy. Then you leave by the wrong exit, or need a bus that exists on the pole as three digits and nothing else, and it goes quiet.
This piece is about moving through Seoul, not learning to read it. Most of the network is a system of numbers and colours with Korean written on top, and numbers and colours survive translation. Work with those and you can get almost anywhere without recognising a single character, and you will know in advance which parts of the trip are the ones that go wrong.
We name no apps, because availability and sign-up requirements change faster than an article does. And we keep the address system short: how a Seoul address is built is its own subject.
What the signs actually give you
Seoul’s official city tourism material states that all subway station signs are in Korean, English and Chinese. Inside the trains, Seoul Metro uses prerecorded announcements in four languages — Korean, English, Japanese and Chinese — giving the upcoming station, the transfers there, and which side the doors will open on. That last detail matters when the car is full and you have thirty seconds to reposition.
That coverage does not extend reliably to anything outside the station: bus stop poles in residential neighbourhoods, building directories, the notice taped to a door. We looked for an official statement on how consistently English appears on bus arrival displays citywide and did not find one. Travel writing describes bilingual displays as common in visitor-heavy areas and thinner elsewhere; we could not verify that, so treat it as an expectation to test.
Your reading problem is therefore not evenly spread: it is smallest inside the rail network, larger at street level in central districts, and larger again in ordinary residential blocks — which is where a great many small offices and upper-floor businesses sit.
The subway is a numbering system with Korean written on it
Every line carries a number or letter and a colour, and every station carries a code. On the main sections of the numbered lines the code is three digits: the first is the line, the last two the station’s position along it. Gangnam, on Line 2, is 222, and Line 2 is green on the map and green on the signage. Lines outside the numbered set use letter prefixes: the Airport Railroad runs from A, the Sinbundang Line from D, the Gyeongui-Jungang Line from K.
The three-digit pattern is not universal, and the exceptions sit on the numbered lines themselves. Line 2’s two branches use hyphenated codes — Yongdap is 211-1, Dorimcheon is 234-1. Line 1 uses P-prefixed codes on its southern branch, where Suwon is P155 and Sinchang is P177. A letter or a hyphen does not tell you that you have left the numbered network.
The code is still the thing to write down. If somebody says a place is near Gangnam Station, the sentence worth carrying is “222”. Station names romanise inconsistently across signs, apps and printed directions, and a half-remembered name cannot be matched against a sign. The number does not drift.
Reading a platform without reading a word
Platforms are labelled by direction, and direction is given as the name of the far end of the line — the one place you are asked to recognise a name rather than a number. There is a partial way around it: along a straight run, station codes step upward in one direction and downward in the other, so you can narrow your side by comparing your destination’s number against the station you are in. 환승 is the word for a transfer, and it labels the corridors between lines inside the paid area.
Two situations break that comparison. Line 2 runs as a loop, so its numbers wrap and the higher-or-lower test fails at the seam; both directions arrive, one considerably later. And where a line branches, a train can be heading the way the numbers say while running onto a branch that does not include your station — which is what those hyphenated and P-prefixed codes mark. The numbers narrow the choice; the terminus name on the platform display settles it. Read that name once, even if you read nothing else.
Official city material gives subway hours as 5:30 a.m. to midnight and notes explicitly that this varies by station. The last train out of a station near the end of a line departs earlier than the last train through the middle of it, and the two directions differ. What matters late at night is the last departure from your station in your direction, not a general closing time.
Exits are where the plan falls apart
출구 is the word for an exit, and exits are numbered rather than named. It is an easy convention to use and one often left out of directions. A large interchange can put its numbered exits on opposite sides of a wide road, connected only through the concourse below, so surfacing at the wrong one means going back underground or waiting out a crossing you did not plan for.
When you ask anyone for an address, ask for the exit number in the same breath. A line, a station and an exit number is a complete instruction in a way a street address alone is not.
We did not find an official description of how exits are ordered, so do not assume exit 4 sits next to exit 5. The related habit is treating the concourse at larger stations as a route rather than a corridor: in heat or rain it is a walkable way to a closer exit, and needs no reading beyond a number.
Buses are a colour system first
Seoul’s city buses are colour-coded, and the city’s own English-language material sets out each colour.
| Colour | City’s term | What it does |
|---|---|---|
| Blue | Trunk | Longer routes within Seoul, linking major districts and the centre |
| Green | Branch | Feeds transfers to another bus or to the subway within a region |
| Red | Rapid | Express services connecting Seoul with nearby metropolitan cities |
| Yellow | Circulation | Runs between central and sub-central districts |
If you read nothing else at a stop, read the colour: a red bus signals a route that leaves the city. There is also a late-night N service, which the city gives as running from 12 a.m. to 4 a.m., that being the last departure rather than the end of service on the road.
The bus asks more of a non-reader than the subway does, and it is worth setting out why. On rails you move through a fixed, published sequence, with a map on every platform wall. On a bus there is no map on any wall, and getting off in the right place depends on catching a stop name as it passes. Buses do announce and display the approaching stop; whether the version you understand reaches you in time is another matter.
One card, and the reason for tapping twice
The rechargeable transit cards sold at convenience stores are the spine of the system. The city states they work across bus, subway, taxi and public bike.
Transfers between bus and subway, subway and bus, and bus and bus are discounted. The limit is four transfers — five rides in total — within a single journey, not four in a day: when a journey ends, the count starts again with the next one. A transfer counts only if you board the next service within 30 minutes of scanning out of the previous one, extended to 60 minutes between 9 p.m. and 7 a.m. It does not apply between two rides on the same route or vehicle.
Which explains a habit you will see on buses and might not think to copy. On buses you tap the reader by the back door on the way out as well as in — the city’s guidance says it plainly: tap as you enter and as you leave, for the transfer discount. Skip the second tap and no record exists that the ride ended, so the next one opens as a fresh fare.
Single-journey tickets exist, bought from machines in the station. They cost more per ride than a card, work on the subway only, and carry a deposit you reclaim from a refund machine after you exit. We quote no fares: what you pay depends on distance, transfers, time of day and fare category.
Taxis, and the sign-up problem
The taxi difficulty in Seoul is usually not the language. It is the account.
The Seoul Metropolitan Government has described the problem in its own words: domestic taxi-hailing services present difficulties for non-Koreans because identity verification runs through domestic mobile carriers and payment methods are centred on domestically issued cards. It names the wall people hit — the app installs, the interface has English, and then it asks for a Korean phone number.
The city’s answer was to support a taxi app aimed at international visitors, authenticating against a phone number registered in the user’s home country and accepting overseas cards. Its release was announced for 1 December 2023, initially in English, simplified and traditional Chinese, Japanese and Thai. We are not naming it, because we have not tested it and cannot say whether today’s version behaves as announced. The durable point is that a documented route around the sign-up wall exists on the city’s own site. Hailing on the street needs no account, and the transit card works for taxi payment.
Getting an address into a driver’s hands
Korea’s official address system has been road-name based since 2014, with older lot-number addresses still in everyday circulation alongside it. For a taxi ride the requirement is narrow: the driver needs the address in Korean script, on a screen, readable at a glance.
Three habits cover most of it. Save the destination as a line of Korean text before you leave, not a romanised version, because a romanisation is a transliteration of a name while a driver navigating by address needs the address. Screenshot it: a screenshot needs no signal and no application open, and shows the same way to a driver or to staff at a station booth. And carry the destination’s phone number, so the driver has the option of calling ahead.
There is also a public interpretation line. The Korea Tourism Organization operates a travel hotline on 1330, offering telephone interpretation alongside travel information in eight languages — and the hours are not the same across all eight, which is the part to carry. Korean, English, Japanese and Chinese run around the clock. Russian, Vietnamese, Thai and Malay/Indonesian run 8 a.m. to 7 p.m. Material from when those four were added describes the shorter hours as a starting arrangement to be extended later; we found no confirmation that it has been, so plan against the shorter hours. Handing your phone to a driver mid-call is a normal use of the line.
Map apps do not behave here the way they do at home
This one is easy to miss before you arrive, because it is invisible until it fails. South Korea restricts the export of high-precision map data, and for years that meant international mapping services were noticeably reduced inside the country.
That restriction has moved, and the change is worth stating precisely because a great deal of older advice was written against the old position. On 27 February 2026, a consultative body of Korean ministries granted conditional approval for 1:5,000 high-precision map data to be exported to a major international mapping provider. The conditions are substantial: raw data processed on servers run by a local partner, government clearance before an edited map leaves the country, military and security facilities blurred, restrictions on coordinate data, and use limited to navigation and directions.
Approval is not delivery. Korean reporting in April 2026 described the export as stalled, with no follow-up meeting since the approval and the ministry waiting on documentation from the company. We found no later reporting confirming the data has moved, and have not tested the app inside Korea. Check rather than assume: open your usual app before you need it, ask for walking directions between two points in Seoul, and look at what comes back.
The domestic mapping apps are the alternative, built on data that never had to leave. We are not naming or ranking them and have not compared their search coverage. What we can offer is mechanical: copying the Korean-script name of your destination from a website into the search box makes the search an exact match rather than a translation, whichever app you are holding.
Frequently asked questions
Do I need any Korean at all to use the subway?
Functionally, no. Station signs are in Korean, English and Chinese according to the city’s official material, and the underlying system is numeric. The two words that repay recognition are 출구, exit, and 환승, transfer, because they attach to the signage that changes your route.
Is taking the bus realistic if I cannot read Korean?
Possible, and it asks more of you than the subway does. The colour is readable at a glance and tells you the type of service. Knowing when to get off depends on catching a stop name in real time rather than following a published sequence. We could not verify how consistently English appears on bus displays citywide, which is a difference worth knowing before you rely on the bus.
Will the mapping app I already have work?
We cannot tell you, and we would rather say so than guess. Conditional approval for high-precision map data to be exported to a major international provider was granted on 27 February 2026. Korean reporting two months later described the export as still stalled, and we found nothing since confirming it has moved. Check it yourself before relying on it.
How do I make sure I get home at the end of the night?
Find the last departure from your station in your direction rather than trusting a general midnight figure, because the city notes explicitly that hours vary by station. If it has passed, the late-night bus service runs with last departures between 12 a.m. and 4 a.m. according to the city, and street taxis need no app account. If you were counting on 1330 to interpret at that hour, only Korean, English, Japanese and Chinese are answered around the clock.
Method — Bus colours, late-night bus hours, transit card coverage and the instruction to tap on entering and leaving come from the Seoul Metropolitan Government’s English-language public transportation pages. The transfer rules — 30 minutes, 60 minutes between 9 p.m. and 7 a.m., up to four transfers within one journey, none on the same route or vehicle — come from the city’s Korean-language guidance on the integrated transfer discount, which is worded per journey, not per day. Subway hours, signage languages and single-journey tickets come from the city’s official English travel guide, the in-train announcement detail from Korean press reporting. Line 2’s colour, Gangnam’s 222, the A, D and K prefixes and the branch codes 211-1, 234-1, P155 and P177 are from public encyclopaedic and railway reference sources. The hailing-app statement and the app for international visitors are from the city’s own announcement. The 1330 hours by language are from Korea Tourism Organization material and a Korean government service listing; other local-government pages describe the line simply as 24-hour, and we used the language-by-language wording. The February 2026 approval and the April 2026 account of the stalled export are from Korean press reporting. We could not verify how consistently English appears on bus arrival displays citywide, how exits are ordered around a station, whether the 1330 hours for the four added languages have since been extended, or whether anything has changed for users since the map approval.
Seoul Beauty Brief is not a medical provider and its writers are not doctors. We are not transport professionals either, and nothing here is a safety assessment or a recommendation of any operator, app or service. This article describes how a public system is structured, drawn from public sources. Conditions change and official information is updated without notice, so confirm anything time-sensitive against the city’s or the operator’s current published information before you depend on it.
Seoul Beauty Brief 