T'way Air Baggage Fees (2026)
Quick summary
T'way Air is a South Korean LCC where free checked baggage depends on your fare bundle and route — domestic and most short-haul international tickets include 15 kg, while promo/event fares often include none, so add bags online to keep costs down.
The bottom line on T'way Air baggage
T'way Air is a Korean low-cost carrier where free checked baggage hinges on your fare bundle: domestic and most short-haul international tickets on Smart or General fares include 15 kg, but promo and event fares often include none. The trap is grabbing the cheapest event fare and only later discovering you must pay separately for every checked bag.
The dependable way to save is to book a Smart or General fare when you need the 15 kg, and add any extra baggage online through Manage Booking rather than at the airport. On Guam and Saipan you already get one free 23 kg piece, so you may not need to buy more.
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Hidden pitfalls most travelers miss
- Event and Promo fares usually include zero free checked baggage — the cheap headline price means you pay separately for every bag you check.
- Your cabin bag and personal item are weighed together against a single 10 kg limit, so a heavy laptop bag can push you over even with a small carry-on.
- Airport excess is charged per kilo and runs noticeably higher than adding the same allowance online through Manage Booking.
T'way Airbaggage allowance & fees at a glance
| 🎒 Personal item | One small personal item (handbag, laptop, or small bag) is allowed in addition to the cabin bag — the combined cabin total must stay within the 10 kg limit. |
| 🧳 Carry-on allowance | One cabin bag up to 10 kg, max 55 x 40 x 20 cm (total ~115 cm). The carry-on plus personal item together cannot exceed 10 kg. |
| 🧳 First checked bag | 15 kg free |
| 🧳 Second checked bag | 15 kg free |
T'way Air checked bag fees
| Domestic (Korea) | 15 kg free |
| International (Smart/General fare, non-Guam/Saipan) | 15 kg free |
| International (Event/Promo fare) | Usually 0 kg — buy separately |
| Guam / Saipan | 1 piece up to 23 kg free |
| Prepaid extra (online) | Cheaper than airport excess fees |
Excess baggage cost calculator
Estimate what T'way Air will actually charge for your bags — one way, typical domestic/regional route.
- Checked bag #1$0
Estimates only. Fees vary by route, fare type, and date — always confirm before booking.
T'way Air vs Jeju Air vs Jin Air: baggage compared
Head-to-head on the fees that actually decide the cheaper airline for bags.
🔁 Change & cancellation
Change and cancellation rules depend on the fare type. Lower (Event/Promo/Smart) fares carry higher penalties or may be non-refundable, while General fares are more flexible. Fees and refundability are shown at booking and in Manage Booking.
Other common fees
| Prepaid extra baggage (online) | Buy in advance via Manage Booking — cheaper than paying at the airport |
| Excess / overweight at airport | Charged per kg at check-in; rates are higher than prepaid online and vary by route |
| Oversize checked bag | Each piece is subject to a linear-dimension limit; oversize pieces incur an additional charge |
How to avoid extra fees
- Check your fare bundle before buying — Event/Promo fares usually include no free checked bag.
- Buy any extra baggage online in advance; airport excess fees are noticeably higher.
- Cabin and personal item are weighed together against the 10 kg limit, so pack the heavy item in your checked bag.
- On Guam/Saipan routes you get one free piece up to 23 kg, so you may not need to buy extra weight there.
- Spread heavy loads so no single checked bag is overweight — per-kg airport excess adds up faster than buying the right allowance online.
T'way Air baggage — FAQ
＋ − Does T'way Air include free checked baggage on international flights?
Only on Smart and General fares (15 kg free, non-Guam/Saipan routes). Event and Promo fares typically include no free checked baggage, so you must purchase it.
＋ − How much carry-on can I bring on T'way Air?
One cabin bag up to 10 kg at max 55 x 40 x 20 cm, plus one small personal item — but the combined weight must stay within 10 kg.
＋ − What is the free checked allowance on domestic Korean flights?
Domestic T'way Air flights include 15 kg of free checked baggage.
＋ − How do I avoid extra baggage fees on T'way Air?
Add any extra checked baggage online through Manage Booking rather than at the airport, keep your cabin bag plus personal item under the combined 10 kg limit, and pick a Smart or General fare if you need the 15 kg free checked allowance on international routes.
Sources & official policy links
Independent guide — not affiliated with T'way Air. Figures here reflect T'way Air's published Asia fares as of 2026-06-28.