✓ Policy web-verified 2026-07-06
Aero K (에어로케이) is a true low-cost carrier, and its baggage rules read like one: on the cheapest Lite fare there is no free checked bag at all – 0 kg in the hold. What you do get, and it is genuinely better than most budget rivals hand out, is a 10 kg carry-on (max 55 x 40 x 20 cm). For a weekend from Cheongju to Jeju, Osaka or Taipei that 10 kg is often the whole trip – you can skip the hold entirely if you pack light.
If you need to check a bag, you buy it. Prepaid online, a checked bag on Aero K’s international routes starts at about KRW 20,000 (roughly EUR 14 / USD 15) for 15 kg on the short Northeast Asia hops (Japan, Taiwan), rising to around KRW 30,000 (about EUR 21 / USD 22) for 15 kg on the longer Southeast Asia and Mongolia routes. Buy it when you book – the counter price is materially higher.
The number that catches people out: each checked piece on Aero K is capped at 20 kg (and 203 cm total dimensions), not the 23 kg you might expect from full-service carriers. And on the Lite fare specifically you can only add the 15 kg or 30 kg options, not any weight you like. Verify the exact allowance and price on your route before you fly.
Quick facts
| Cheapest (Lite) fare | HAND-ONLY – no free checked bag (0 kg) |
| Carry-on | 1 x 10 kg, max 55 x 40 x 20 cm |
| Checked bag (add-on) | From ~KRW 20,000 / EUR 14 (15 kg, NE Asia) |
| Checked bag (SE Asia / Mongolia) | ~KRW 30,000 / EUR 21 (15 kg) |
| Standard fare free allowance | 15 kg checked (higher fares only) |
| Max weight per checked piece | 20 kg |
| Max checked dimensions | 203 cm (height + width + length) |
| Buy-by deadline | Up to 24 hours before departure online |
Cabin bag & personal item
| Item | Allowance |
|---|---|
| Carry-on bag | 1 piece up to 10 kg, max 55 x 40 x 20 cm (including handles and wheels). Included on every fare, Lite included – unusually generous for a budget carrier. |
| Personal item | A small under-seat item is generally accepted alongside the carry-on; confirm the exact rule at booking as the free allowance centres on the single 10 kg bag. |
Checked baggage & fees
| Lite fare (cheapest) | 0 kg – no checked bag included. Add 15 kg or 30 kg as a paid option. |
| Standard / higher fares | 15 kg checked included on applicable normal fares |
| Prepaid checked – Northeast Asia (Japan, Taiwan) | ~KRW 20,000 (EUR 14 / USD 15) for 15 kg; ~KRW 24,000 (EUR 17 / USD 18) for 20 kg |
| Prepaid checked – Southeast Asia & Mongolia | ~KRW 30,000 (EUR 21 / USD 22) for 15 kg; ~KRW 34,000 (EUR 23 / USD 25) for 20 kg |
| Max weight per piece | 20 kg (single piece cannot exceed 20 kg) |
| Max dimensions | 203 cm total (height + width + length) |
| Purchase deadline | Prepaid baggage, changes and refunds available up to 24 hours before departure |
What you actually get on a cheap fare
What a cheap Aero K deal fare actually gives you: a 10 kg cabin bag and nothing in the hold. That 10 kg carry-on is the headline – it is more generous than the 7 kg most Asian LCCs allow, so a well-packed cabin case genuinely covers a short trip and you pay nothing extra. Treat the Lite fare as a hand-luggage ticket by default and only add a hold bag if you actually need one.
When you do add one, prepay online: an international checked bag runs from roughly KRW 20,000 (about EUR 14) on the Northeast Asia routes up to around KRW 30,000 (EUR 21) on the Southeast Asia and Mongolia flying, and buying at the airport costs more. Two hard limits to plan around: each checked piece maxes out at 20 kg, not 23 kg, so a heavy bag may need splitting; and on the Lite fare you are restricted to the 15 kg or 30 kg add-on tiers rather than free choice of weight. As a young carrier Aero K has been trimming and reshuffling routes through 2026 (dropping some Japan and Mongolia services, adding others), so always re-confirm the allowance and price on your specific booking.
A word on the maths that makes or breaks an Aero K deal: because the base fare buys a seat and a 10 kg cabin bag only, the honest price of your trip is the fare plus any bag you add. On a short Japan hop a 15 kg bag at about EUR 14 barely moves the total; on the Southeast Asia routes the EUR 21 add-on is worth weighing against a bag-inclusive Standard fare, which sometimes lands cheaper overall. If two of you are travelling with one shared suitcase, one 20 kg add-on split between you usually beats buying two bags. Domestic Jeju and Gimpo flights follow the same hand-only Lite structure with lower add-on prices – check the exact figure at booking, since domestic tariffs differ from the international bands quoted here.
Frequently asked questions
Does the cheapest Aero K fare include a checked bag?
No. The cheapest Lite fare is hand-only, with 0 kg of free checked baggage. It does include a generous 10 kg carry-on, so a light packer can fly with no hold bag at all. If you need to check a bag, you buy it as an add-on.
How big can my Aero K carry-on be?
One carry-on up to 10 kg, with maximum dimensions of 55 x 40 x 20 cm including handles and wheels. This applies on every fare, including the cheapest Lite fare – a notably higher cabin allowance than the 7 kg common on other Asian low-cost carriers.
How much does a checked bag cost on Aero K?
Prepaid online, an international checked bag starts at about KRW 20,000 (EUR 14 / USD 15) for 15 kg on Northeast Asia routes such as Japan and Taiwan, and about KRW 30,000 (EUR 21 / USD 22) for 15 kg on Southeast Asia and Mongolia routes. A 20 kg allowance costs a little more. Airport prices are higher.
What is the maximum weight for one Aero K checked bag?
20 kg per piece, with total dimensions no more than 203 cm (height plus width plus length). Unlike full-service carriers there is no 23 kg piece, so a heavy bag may need to be split across two allowances.
Can I choose any checked-bag weight on the Lite fare?
No. On the cheapest Lite fare you can only add the 15 kg or 30 kg checked options, not an arbitrary weight. Higher fare types offer more flexibility, so if you carry a lot, price the fare-plus-bag combinations before booking.
When do I have to buy my Aero K checked bag by?
Prepaid baggage – along with changes, cancellations and refunds of it – is available up to 24 hours before departure. Buy it online rather than at the airport counter, where the price is higher.
Is Aero K still operating in 2026?
Yes. Aero K is an operating South Korean low-cost carrier based at Cheongju (CJJ), flying an Airbus A320 fleet. It has adjusted its network through 2026 – dropping some routes and adding others such as Cheongju to Cam Ranh – but remains active, so check current schedules for your route.
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