On Special Fares, the first 15kg costs JPY 4,000 prepaid online 48 hours or more before departure (JPY 4,500 within 48 hours) and JPY 6,000 at the airport. Each extra 5kg costs JPY 4,000 online. (Air Seoul's official baggage fee page, checked on 12 October 2026.)
Air Seoul checked bag fees
Special Fare, Korea–Japan, one way.
| What you pay for | Price, one way |
|---|---|
| Checked bag 15kg (Special Fare), 48 hours or more before departure, online in advance | JPY 4,000 |
| Checked bag 15kg (Special Fare), within 48 hours of departure, online in advance | JPY 4,500 |
| Extra 5kg (after the first 15kg) (Special Fare), 48 hours or more before departure, online in advance | JPY 4,000 |
| Checked bag 15kg (Special Fare), airport counter | JPY 6,000 |
| Excess weight per kg (Special Fare), airport counter | JPY 1,200 |
How much does a checked bag cost for a round trip on Air Seoul?
Our sum of Air Seoul's one-way prices. Air Seoul lists one-way prices only.
| Route | 15kg both ways, online 48h+ | 15kg both ways, airport | 20kg both ways, online |
|---|---|---|---|
| Korea – Japan | 8,000 | 12,000 | 16,000 |
Calculated by japan-japan.com from the one-way prices on Air Seoul's official page (checked on 12 October 2026).
Is it cheaper to add a bag online or at the airport?
Yes, buying online in advance is cheaper: the airport counter costs JPY 2,000 more.
- Online in advanceJPY 4,000
- Airport counterJPY 6,000
- Airport counter
- JPY 2,000 more than online
Frequently asked questions
How much is a checked bag on Air Seoul?
On Special Fares, the first 15kg costs JPY 4,000 prepaid online 48 hours or more before departure (JPY 4,500 within 48 hours) and JPY 6,000 at the airport. Each extra 5kg costs JPY 4,000 online.
Is it cheaper to buy Air Seoul baggage online?
Yes. At the airport it costs JPY 2,000 more than buying online.
How much is a checked bag on Air Seoul for a round trip?
Adding up Air Seoul's one-way prices, 15kg both ways, online 48h+ costs JPY 8,000 for a round trip.
Which flights each price covers
- Korea – Japan
- Korea (Seoul/Incheon) – Japan
Air Seoul baggage purchase rules
- Rule
- For Special Fare, additional weight can be bought in 5kg units when prepaid online, or per kg at the airport, after buying the "First 15KG" package
- Rule
- A purchased baggage weight tier can only be changed by cancelling the existing purchase and repurchasing
- Rule
- Checked baggage exceeding 277cm (length + width + height) may be refused as checked baggage
- Rule
- Exchange rate basis used on this page: KRW 1,000 = USD 1 = JPY 100 = CNY 7 = HKD 8 = MYR 4
In the airline's own words
Air SeoulSpecial Fare can “additional 5KG(Pre-paid)/KG(Airport)” after buy a “FIRST 15KG”
Official page
Air SeoulBaggage weight change is available only after canceling the purchase existing and repurchasing it
Official page