Seoul’s subway has a last train, and it does not run at the same clock time everywhere. Each line publishes a last-train time for its terminal station. Every other station on that line has an earlier effective cutoff, because the train has to travel there first. Miss it, and the options are a taxi or a night bus with a route number starting with N.
This matters more than the usual “runs until around midnight” advice suggests. The number on a subway app or a station poster is almost always the departure time from one end of the line. If your station sits in the middle, or at a transfer point where two lines meet, that number is not your number.
Why the posted time is not your time
Seoul’s subway lines are long. Line 1 alone runs from Soyosan in the north to Sinchang or Cheonan-Asan in the south, well outside the city. A “last train” time announced for Soyosan tells you nothing directly about when the last train passes through, say, Jongno 3(sam)-ga, unless you do the arithmetic.
The rule of thumb operators and transit planners generally use: a train covers one station-to-station stretch in roughly one to two minutes, depending on stop spacing and whether it is an express or local service. So if the terminus departure is your reference point, each stop further along the line adds another minute or two to when the train actually arrives there — and each stop closer to the terminus subtracts the same.
To estimate your own last-train time:
- Find the terminus departure time posted for your line and direction, on the operator’s own app or the platform display.
- Count how many stations lie between the terminus and your station.
- Add roughly one to two minutes per station to the terminus time.
- Treat the result as an estimate, not a guarantee — and always check the display at your own station, which shows the actual next-to-last and last departures in real time.
Where the estimate breaks down: transfer stations
The arithmetic above assumes you are riding one line straight through. It falls apart at transfer stations, where the last train on your line may arrive in time to connect, but the last train on the line you need may already have left. The mismatch is not a rounding error. It is built into the fact that two different lines, run by the same or different operators, do not coordinate their last departures against each other.
Three transfer points illustrate the pattern clearly:
- Sindorim — where Line 1 and Line 2 cross. Line 1 runs regional services well outside Seoul, on a different schedule logic to Line 2’s city loop, so a late Line 1 arrival can miss the last usable Line 2 connection.
- Gangnam — served by Line 2 and the Sinbundang Line, operated separately. The Sinbundang Line’s last southbound service toward Gyeonggi-do tends to cut off earlier in the night than Line 2’s core loop.
- Jamsil — where Line 2 meets Line 8. Line 8 is shorter and its last connecting service can close out before Line 2 riders arrive expecting to change.
The practical rule: at any transfer station, do not assume your connecting line is still running just because your own train made it there. Check the connecting platform’s own last-train display, not just the one you arrived on.
Tap out — the fare rule that catches people even before midnight
Seoul’s transit fares are distance-based, on the subway and on buses alike, using a rechargeable T-money card or its app equivalent. That means the card is tapped again on leaving, not just on boarding. Riders who forget to tap out are charged as though they rode to the end of the line, and they lose the free transfer to a connecting bus or train. It is a small mechanical habit, and it is the single most common mistake visitors make on the system — worth building into muscle memory well before you are racing a last train. The mechanics of buying, topping up and tapping out are set out in full in how T-money works.
If you miss it
Seoul does not shut down when the subway does. Two fallbacks cover almost every situation:
- Taxis run all night, metered, and are the straightforward option for a short distance or a group splitting the fare.
- Night buses, all carrying route numbers beginning with N, run a limited network through the night on a small number of core corridors. They are cheaper than a taxi but far less comprehensive, and not every neighborhood is on a route.
Some parts of the city trade through the night regardless of the subway’s schedule — Dongdaemun’s wholesale clothing markets are the best-known example, running well past the point most other businesses close. That is a separate rhythm from the transit system, not a reason to assume the trains run later there too.
Where to check, and what not to trust
Do not rely on a screenshot, a blog post, or this article for tonight’s exact last-train time. Seoul Metro and Korail, the operators running the various lines, publish current timetables and last-train information through their own apps and station displays, and that is the only source that reflects the actual day’s service, including holiday adjustments. Seoul’s official tourism information, run by the Seoul Tourism Organization, also carries general transit guidance for visitors.
For the wider fare and card mechanics that shape all of this — zones, transfers, monthly patterns for anyone staying longer — see the Getting Around archive. Readers timing an evening around a palace visit rather than a train should also check which palace closes on which day, since palace hours and last-train timing are two entirely separate schedules that visitors often conflate.
This article was researched from operator and city-published sources rather than firsthand travel; see how Access Seoul is written and checked for that distinction, and our privacy policy for what is collected when you read this site.
Access Seoul is an independent guide written from published, checkable sources. We have not visited the places described here and we do not publish personal recommendations or invented ‘local favorites’ — where something is singled out as notable, we say who says so. Opening times, fares, closures and prices change at short notice, so treat everything here as a starting point and confirm with the museum, operator or venue directly before building a day around it. We give no advice on visas, insurance, health or safety; use your own government’s official guidance for those.