Seoul’s subway system is one of the busiest and most efficient in the world. It’s clean, safe, and connects nearly every corner of the city. But for first-timers, the network can feel overwhelming with its dozens of lines and multiple transfer stations.
Knowing a few simple tricks makes riding the subway easier and more comfortable. Here is a list of 17 travel tips that will help you navigate Seoul’s subways like a local.
Get a T-Money Card

The T-Money card is the easiest way to pay for rides on subways, buses, and taxis throughout Seoul. You can buy one at convenience stores or airport kiosks and reload it as you go.
Using this card means you won’t waste time buying individual tickets. It also offers small discounts compared to single fares.
Download Subway Apps

Apps like KakaoMetro and Naver Map provide real-time train schedules, route planning, and station layouts. Both apps support English, which makes understanding transfers and exits much simpler.
Using these apps helps avoid confusion, especially at large stations with multiple lines. They also show walking directions from stations to nearby landmarks.
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Avoid Rush Hours

Seoul’s subway rush hours are notoriously crowded, typically from 7 to 9 a.m. and 6 to 8 p.m. If you can travel outside these windows, your commute will be more pleasant.
Trains arrive frequently even during off-peak times, so waiting won’t take long. Traveling less crowded means you can sit or at least breathe easier.
Know Your Exit Number

Each subway station has several numbered exits leading to different streets or landmarks. It’s best to find out which exit you need before leaving the train.
Following exit numbers saves time and avoids extra walking or getting lost above ground. Signs inside stations clearly mark exit numbers in both Korean and English.
Stand Right on Escalators

Locals always stand on the right side of escalators, leaving the left side free for people in a hurry to walk up or down. Standing on the left can block others and may get you some gentle reminders.
It’s a small but important local habit that keeps foot traffic smooth. Following it helps you blend in and avoid awkward moments.
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Mind the Priority Seats

Subway cars have priority seats reserved for the elderly, pregnant women, and people with disabilities. Even if these seats are empty, it’s polite to leave them available.
Koreans take this rule seriously, and ignoring it may draw disapproving looks. Choosing other seats or standing shows respect for local customs.
Pay Attention to Door Markings

Train doors often align with specific station exits, and markings on platforms show where to wait for your desired exit. This way, you won’t have to rush across crowded platforms after getting off.
Keeping an eye on these signs can save you a lot of time and hassle. It’s a simple trick that makes transfers easier.
Use Station Lockers

If you have bulky luggage or shopping bags, consider using coin lockers available at major stations like Seoul Station or Myeongdong. They’re convenient and secure for storing items while you explore.
Many lockers accept T-Money cards or cash, and sizes vary to fit different bags. Using lockers lightens your load and improves mobility.
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Don’t Eat or Drink on Trains

Although not strictly forbidden, eating and drinking on Seoul’s subway trains is generally discouraged. Most locals avoid it, keeping the environment clean and pleasant for everyone.
Following this etiquette helps you blend in and respect others’ space. It also prevents spills or messes in crowded cars.
Be Quiet and Respectful

The subway is typically a quiet place where loud conversations or phone calls are frowned upon. Most passengers use headphones and keep their voices low.
Matching this calm atmosphere makes the ride more comfortable for everyone. It’s a subtle way to show you understand local customs.
Check Last Train Times

Subways usually stop running around midnight, though exact times vary by line. Always check the last train schedule, especially if you plan to stay out late. Missing the last train can mean expensive taxi rides or long waits.
Planning ensures you won’t get stranded.
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Use Screen Doors Safely

Most platforms have screen doors that open only when the train arrives, improving safety by preventing accidental falls. Stand behind the yellow line and wait for the doors to open fully before boarding.
This practice keeps the boarding organized and safe in crowded stations. Ignoring these rules is rare and frowned upon.
Follow Floor Arrows

Colored arrows on platforms show where to line up for each train door. Standing in these spots helps maintain order and speeds boarding. Locals strictly follow these markings to avoid pushing or confusion.
Joining in on this habit will help you navigate crowds smoothly.
Bring Hand Sanitizer

Even though Seoul’s subway system is clean, you’ll still touch handrails and buttons that many others have used. Carrying a small bottle of hand sanitizer is a good habit, especially during flu season or after touching public surfaces.
It’s a quick way to stay healthy without fuss.
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Use Wi-Fi Underground

Seoul’s subway system offers free Wi-Fi on most lines and stations. Use it to check maps, translate signs, or message friends. Having internet access underground keeps you connected and reduces stress about getting lost.
Just don’t rely on Google Maps, which is less accurate here than Korean apps.
Don’t Block Doors

When trains arrive, step aside to let passengers exit before boarding. Blocking the doors or pushing forward early is considered rude. Waiting patiently respects others’ space and keeps the flow moving.
It’s a small gesture with a big impact on crowd control.
Take It Slow if You Miss Your Stop

Missing a station isn’t the end of the world. Seoul’s trains run frequently, and most lines circle back. Simply get off at the next stop and catch the train back.
Staying calm and planning your return helps keep stress levels down.
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Use Exit Maps

Many stations post large maps near exits showing nearby streets, shops, and landmarks. Checking these maps before leaving the station helps you find your way faster.
It’s especially useful at busy hubs where several exits can lead in very different directions. Knowing your exact exit reduces confusion above ground.
Don’t Let the Subway Slow You Down

Traveling the Seoul subway doesn’t have to be stressful. With a little preparation and respect for local customs, the system becomes a fast and convenient way to explore the city.
These tips help you avoid common mistakes and ride comfortably alongside locals. Soon, the maze of lines will feel like second nature, making your trip even more enjoyable.
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