Seoul's T-Locker spans 260+ subway stations with 5,500+ lockers. Download the 또타라커 app before arrival, choose your size, pay by card, and explore the city hands-free. Max 5-day storage.
This guide covers everything you need to know: what T-Locker is, how to use it step by step, pricing, operating hours, and practical tips to avoid common mistakes foreign visitors make.
What Is T-Locker? Seoul's Official Subway Locker System
T-Locker (also called 또타라커, pronounced "Ttota-ra-keo") is the official unmanned luggage storage service operated by Seoul Metro. With over 5,500 lockers spread across more than 260 subway stations citywide, there is very likely a unit near wherever you plan to go in Seoul.
Unlike traditional coin lockers, T-Locker runs entirely through a mobile app called '또타라커', available on both the App Store and Google Play. The entire process — from selecting a locker to payment and access — is handled through the app. This means one critical thing: download the app before you arrive at the station. Walk-up access without the app is not available.
The app interface is currently designed primarily in Korean, so it is worth spending a few minutes getting familiar with the layout before heading out. That said, international credit cards are accepted for payment, making it accessible for foreign visitors once the initial setup is complete.
T-Locker Sizes and Rates
Three locker sizes are available to fit everything from a small backpack to a large travel suitcase.
| Locker Size | Suitable For | Basic Rate (Up to 4 Hours) | Additional Rate (Per Hour) |
|---|---|---|---|
| Small (S) | Backpacks, shopping bags | 2,000 KRW | 500 KRW |
| Medium (M) | Cabin-size suitcases (20") | 3,000 KRW | 800 KRW |
| Large (L) | Large suitcases (24"–28") | 4,000 KRW | 1,000 KRW |
Rates are current as of the time of writing. Always confirm the latest pricing inside the app before storing.
T-Locker operates during Seoul Metro hours — 5 AM to 1 AM on weekdays, and 5 AM to midnight on weekends and public holidays. If you need to retrieve your bag outside those hours, access will not be possible, so plan your schedule accordingly.
Step-by-Step: How to Use T-Locker
Before You Go
Step 1. Download the '또타라커' app from the App Store or Google Play.
Step 2. Create an account. Phone number verification is required — international numbers are accepted.
Step 3. Inside the app, search for the subway station nearest to your starting point or destination and check real-time locker availability.
At the Station
Step 4. Reserve your preferred locker size and complete payment through the app. Booking up to 2 hours before your planned arrival is possible.
Step 5. Walk to the locker bank inside the station. Look for signs reading "물품보관함" or "Baggage Storage" — these are typically located near exits or transfer corridors.
Step 6. Scan the QR code displayed in the app at the locker to open it. Place your luggage inside and make sure the door closes securely.
Retrieving Your Bags
Step 7. Return to the locker during operating hours and tap 'Open' in the app to retrieve your belongings. Any additional time charges are applied automatically to your registered payment method.
Important Tips and Rules to Know
Booking window matters. If you reserve a locker but do not scan the QR code within the 2-hour booking window, the reservation auto-cancels with no refund. Make sure to head to the station promptly after booking.
Maximum storage duration. A single locker can be kept for a maximum of five days. For anything beyond that, alternative long-term storage services are a better fit.
Do not store valuables. T-Locker units are entirely unstaffed. Passports, laptops, cash, and other high-value items should stay with you at all times. The service does not offer compensation for items lost from unmanned lockers.
If you need assistance. The T-Locker customer support line is +82-2-1877-1265, available from 6 AM to midnight year-round — currently provided in Korean only. If language is a concern, staffed luggage storage counters at major hubs such as Seoul Station (B1 level, near Exit 1) are a more accessible alternative, with staff able to assist foreign visitors directly.
Locker-to-locker delivery. T-Locker also offers a bag relay service — store luggage at one station and have it transported to another later in the day. Delivery to Incheon Airport is available as well, with pricing determined by distance.
Where to Find T-Lockers Near Popular Tourist Areas
T-Locker units are installed across the full Seoul Metro network covering Lines 1 through 9. High-traffic tourist stations — including Hongik University (Hongdae), Myeongdong, Gyeongbokgung, and Dongdaemun History & Culture Park — all have locker banks on site. Use the in-app map to locate the nearest unit and confirm availability before making your way over.
Alternatives When T-Locker Is Full or Unavailable
Lockers at popular stations tend to fill up quickly on weekends and public holidays. If T-Locker is not an option, these alternatives are worth knowing:
- Traditional coin lockers — available at Seoul Station and several major transit hubs; accept cash and card with no app required
- Staffed storage counters — services such as T-Luggage operate manned counters at Seoul Station (B1); a straightforward option for foreign visitors who prefer face-to-face assistance
- Third-party platforms — apps such as Bounce and LugStay connect travelers with nearby shops and cafes offering bag storage by the day, often at competitive rates
Final Thoughts
Seoul is one of the most traveler-friendly cities in the world, and T-Locker is a strong example of why. Once the app is installed and a locker is booked, you can move freely through Insadong, Bukchon Hanok Village, or along the Han River without dragging a bag behind you.
The essentials to remember: download the app before reaching the station, book in advance on busy days, and keep valuables with you at all times. Get those three things right, and luggage storage in Seoul will be one of the smoothest parts of your trip.
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