The Skymark Airlines baggage policy treats your carry-on and your suitcase as one shared weight budget. It does not use two separate allowances.
Every passenger gets 20 kilograms, about 44 pounds, of free baggage total. You split that weight however you like between the bag you carry on and the one you check.
How the shared 20 kilogram allowance actually works
Skymark’s own conditions of carriage state the free allowance covers checked and carry-on baggage together. The total is 20 kilograms per passenger. There is no separate number for the hold and a separate number for the cabin.
Pack a 10 kilogram cabin bag and you have 10 kilograms of free checked weight left. Pack a light 3 kilogram cabin bag instead and you can check 17 kilograms for free.
Japan’s largest carriers keep the two allowances apart. This pooling is the detail worth planning around before you pack.
Skymark carry-on size and weight
Skymark allows one main bag. Its length, width and height added together must not exceed 115 centimeters, about 45.3 inches. A second personal item, described as a bag for personal effects, travels free alongside it.
The main bag and the personal item together cannot exceed 10 kilograms, about 22 pounds. That combined weight also counts against the 20 kilogram total. It is the real crux of the carry-on rules a Skymark passenger needs.
Skymark checked baggage limits
A single checked piece can weigh up to 32 kilograms, about 70.5 pounds. It can measure up to 50 by 60 by 120 centimeters. That is roughly 19.7 by 23.6 by 47.2 inches.
There is no stated limit on the number of pieces. Only the total weight is capped, at 100 kilograms per passenger. That structure differs from the bag counting most US flyers expect.
Check the checked baggage basics first if you are used to counting bags instead of kilograms.
What excess weight costs
Go over the free 20 kilogram pool and Skymark charges a fee. It is 2,000 yen for the first 10 kilograms of excess. Each additional 10 kilograms costs another 1,000 yen.
The carrier does not publish a separate fee for an oversized bag. Instead, an oversized bag may simply be refused if the aircraft has tight cargo space that day. Run your own numbers through the baggage cost calculator before you pack heavy.
Skymark is a Japan domestic carrier, and that matters for a US trip
The page these figures come from is titled for domestic flights. Skymark does not fly its own aircraft to the United States. Most US travelers meet the Skymark airlines baggage policy on the second leg of a trip.
That usually happens after landing on an international carrier at Haneda or another Japanese hub. Frequent flyer forums carry a recurring question about whether Skymark will through check bags from a connecting flight. Delta is one carrier named in that question.
The thread itself was blocked to automated fetching. Treat this as a signal, not a confirmed answer. Do not assume your bag transfers automatically, and confirm it at your first check-in counter.
How it compares with Japan’s other carriers
Skymark sits in an unusual spot in the Japanese market. It prices below Japan Airlines and All Nippon Airways. Yet it still bundles a checked allowance into the base fare, something Japan’s dedicated budget carriers generally skip.
A carrier such as ZIPAIR was built for cheap long haul flying. It typically sells checked weight as an add-on rather than including it. That gap is the reason the Skymark airlines baggage policy is worth reading before you assume it behaves like a typical budget fare.
The bottom line
The Skymark airlines baggage policy gives you 20 kilograms total, shared between your carry-on and your checked bag. Excess weight costs 2,000 yen per 10 kilograms over that limit.
Pack your cabin bag light if you want more free weight in the hold. Confirm any interline baggage transfer yourself, since Skymark is an independent domestic carrier. It is not a partner deeply tied into international itineraries.
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