The short answer
- For 7 hours after checkout with one large suitcase, the KORAIL luggage locker at Seoul Station is the cheapest at ₩4,000.
- Under the same conditions, the subway T-Locker costs ₩7,400 — its per-hour surcharge is priced higher than KORAIL's.
- Airport↔hotel luggage delivery runs ₩20,000–₩30,000 per bag — 4–8 times more than storage, but you never have to carry it.
Checkout is at 11 a.m., the flight is at 9 p.m. Where to leave a suitcase in those in-between hours is a question every traveler faces on the last day of a Seoul trip. Coin lockers, subway luggage lockers, unattended and staffed storage shops in Hongdae, and luggage delivery that carries your bag all the way to the airport — the options are plenty, but side-by-side price comparisons are rare.
This article calculates the official rate tables for the KORAIL luggage lockers at Seoul Station and the subway T-Locker by size and hour, then plugs them into a real scenario — checkout followed by an evening flight — to show in numbers which one costs less. Since luggage delivery solves a different problem than storage, I also look at the conditions where the price gap flips.
How much do coin lockers cost by size?
Locker pricing usually follows a base hours + per-hour surcharge structure. The catch is that the base window and the surcharge differ from place to place, so even for the same 7 hours, the final price can nearly double.
📊 Seoul Station (KORAIL) luggage locker rates — 2-hour base + per-hour surcharge
| Size | 2-hour base | Per extra hour | 7-hour total | Fits |
|---|---|---|---|---|
| Small | ₩1,000 | ₩200 | ₩2,000 | Backpack, carry-on |
| Medium | ₩1,500 | ₩300 | ₩3,000 | 24-inch |
| Large | ₩2,000 | ₩400 | ₩4,000 | 28-inch |
| Extra large | ₩3,000 | ₩500 | ₩5,500 | Golf bags, oversized |
📊 Subway T-Locker rates — weekday 4-hour base + per-hour surcharge
| Size | 4-hour base | Per extra hour | 7-hour total | Dimensions (cm) |
|---|---|---|---|---|
| Small | ₩2,200 | ₩500 | ₩3,700 | 50×30×60 |
| Medium | ₩3,300 | ₩800 | ₩5,700 | 50×45×60 |
| Large | ₩4,400 | ₩1,000 | ₩7,400 | 50×90×60 |
Set the two tables side by side and the answer is clear. For the same large suitcase and the same 7 hours, a KORAIL station locker (₩4,000) is ₩3,400 cheaper than a subway T-Locker (₩7,400). T-Lockers are everywhere — 332 locations across 269 Seoul subway stations — so nothing beats them for convenience, but their per-hour surcharge is priced 2–2.5 times higher than KORAIL’s. In short, if your hotel is closer to a train station like Seoul Station or Yongsan Station than to a subway stop, check the station lockers first.
Practical tip
KORAIL lockers add a surcharge in 12-hour blocks once you pass the first 12 hours (₩2,000 per block for the large size). No problem for a same-day round trip, but if you plan to leave your bag for more than a day, compare against the flat daily rates at staffed storage shops.
Are Hongdae's unattended and staffed storage shops cheaper than coin lockers?
Around Hongik Univ. Station, private luggage storage shops cluster alongside the lockers. Unattended storage runs 24/7 self-service, while staffed storage has a clerk receive your bag in person.
LuggageQ, a leading unattended operator, charges ₩1,000 per hour at its Hongik Univ. Station branch, available 24/7 by card with no reservation. Seven hours comes to ₩7,000 — pricier than the KORAIL locker above (₩4,000), but it sits between the T-Locker small (₩3,700) and medium (₩5,700) tiers.
Staffed storage shops around Hongdae, Myeongdong, and Seoul Station run on a flat daily rate. Their size limits are looser, so they’ll take extra-large suitcases and boxed items, but you can only drop off and pick up during business hours. Around Hongdae there are a few staffed shops, including Hongdae Luggage run by KPLANZ; prices are quoted in store based on the size and number of bags.
For traveling light after checkout
Booking storage ahead of time at Incheon Airport and major city hubs spares you the walk of disappointment when every locker at the spot is taken.
Prices and availability are as of August 2026 and may vary by date and option.
How much more does airport↔hotel luggage delivery cost than storage?
Roughly ₩20,000–₩30,000 per bag. Looking at the market rates of luggage delivery operators in Seoul, one-way service for an M-size suitcase sits around ₩20,000–₩30,000, with surcharges for heavier or larger bags. Compared with the 7-hour storage above (₩4,000–₩7,400), it’s at least 3 times and up to nearly 8 times more expensive.
On price alone delivery looks like a loser, but what this service sells isn’t storage — it’s the state of not having to carry anything. The conditions where the cost gap flips are clear.
Luggage delivery from your hotel to Incheon and Gimpo Airports
Drop your bag at the hotel front desk in the morning and collect it at the airport in time for your evening flight's check-in. Not having to drag a large suitcase through multiple subway transfers is the biggest difference from a coin locker.
Prices and availability are as of August 2026 and may vary by date and option.
What to do with a long wait before an evening flight?
When you have more than 10 hours between checkout (11 a.m.) and an evening flight, storing your bag isn’t the whole story — you also face a long wait after arriving at the airport early. In that case, an airport lounge is worth considering as a way to use the time, separate from luggage storage.
The Matina Lounge at Incheon Airport lists around US$39 (about ₩52,000) per person at full price, and buying online in advance is often cheaper than paying at the door. It serves a different purpose than coin lockers and luggage delivery, but if your schedule has you arriving early and waiting for hours, the per-hour cost of a lounge seat can feel lower than sitting around the terminal.
Buy an Incheon Airport lounge pass in advance
Online advance purchase is often cheaper than buying on site, and it helps you avoid delays at the door when seats run short.
Prices and availability are as of August 2026 and may vary by date and option.
So what should you pick?
Quick picks
- One suitcase, hotel near a train station — KORAIL luggage lockers are the cheapest.
- One suitcase, hotel near a subway station — T-Locker or an unattended shop; no big difference.
- One suitcase, storing all day — ask about flat daily rates at staffed storage.
- Two or more suitcases, a route with many transit transfers — luggage delivery saves your energy for the money.
On the numbers, storage is always cheaper. But the price gap we calculated here is less about how much you save than about what you pay to not have to do something. If you can put up with hauling your suitcase around, choose a locker; if you can’t, choose delivery.
Sources
- Seoul Station (KORAIL) locker fee structure (2-hour base + per-hour surcharge + 12-hour blocks) — based on KORAIL travel guides and on-site rate boards.
- Subway T-Locker rates, dimensions, and coverage (332 locations across 269 stations, 5,511 lockers) — per the Seoul Metro T-Locker official page.
- LuggageQ Hongik Univ. Station branch rate of ₩1,000 per hour — per the operator's official page.
- Airport↔hotel luggage delivery market prices (₩20,000–₩30,000 range) — compared across published rates from Korean delivery operators.
- Incheon Airport Matina Lounge full price (about US$39 / ₩52,000) — compiled from travel media; re-confirm as of August 2026.
- Prices are as of August 2026 and may vary with exchange rates and conditions on site.
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