Hän saapui saapumisaulaan ilman että hänen matkatavaransa tuli samassa koneessa.

Yes, ilman means without, but ilman että is a fixed structure used before a whole clause.

• ilman
  • noun:
    • ilman matkatavaroita = without luggage
• ilman että
  • clause:
    • ilman että hänen matkatavaransa tuli samassa koneessa = without his/her luggage arriving on the same plane

So ilman että is used when Finnish wants to say without it being the case that... or without ... happening.

To an English speaker, it can look redundant, but this is normal in Finnish, especially with third person possession.

• hänen matkatavaransa = his/her luggage
• heidän matkatavaransa = their luggage

In standard Finnish, third person possession is often shown with:

1. the pronoun (hänen / heidän), and
2. the possessive suffix (-nsa / -nsä)

So this double marking is very common.

A learner should also know:

• matkatavaransa by itself can sometimes mean his/her luggage, their luggage, or even one’s own luggage, depending on context.
• Adding hänen makes it clearer.

Because matkatavara in Finnish often works like luggage in English: a collective or mass noun.

So:

• matkatavara = luggage
• matkatavarat = luggage items / bags / belongings

In this sentence, matkatavaransa tuli uses the singular collective idea: his/her luggage came.

That is why the verb is also singular:

• matkatavaransa tuli not
• matkatavaransa tulivat

If the speaker wanted to emphasize separate bags, plural might be used instead.

Not necessarily. As mentioned above, matkatavara often behaves like a mass noun, similar to English luggage.

So:

• Matkatavara tuli myöhemmin. = The luggage arrived later.
• Matkatavarat tulivat myöhemmin. = The bags arrived later.

In your sentence, the speaker is treating the baggage as one collective thing, so tuli is perfectly logical.

Saapumisaulaan is in the illative case, which often means into, to, or toward a place.

Base form:

• saapumisaula = arrivals hall

Illative:

• saapumisaulaan = into / to the arrivals hall

Because the verb saapua involves arriving at a destination, Finnish uses a destination-type case here.

Compare:

• saapua lentokentälle = arrive at the airport
• mennä taloon = go into the house
• saapua saapumisaulaan = arrive at the arrivals hall

It is a little repetitive in sound, because both words come from the same root idea of arriving:

• saapui = arrived
• saapumisaula = arrival hall / arrivals hall

This is not ungrammatical, but a learner may notice the repetition. Finnish often allows this kind of thing when the noun is the standard name of a place.

So the sentence is understandable, but stylistically some speakers might prefer a different wording depending on context.

Saapumisaula means arrival hall or arrivals hall, especially at an airport, ferry terminal, or similar place.

It is built from:

• saapuminen = arrival
• aula = lobby / hall

So literally it is something like arrival hall.

In Finnish, when talking about traveling on a vehicle such as a plane, train, bus, or ship, the inessive case is very common:

• koneessa = in the plane / on the plane
• junassa = on the train
• bussissa = on the bus

So:

• samassa koneessa = on the same plane

This sounds natural in Finnish even though English uses on.

Koneella would be the adessive case, and in this context it is not the normal choice for meaning on the plane.

Both words are in the inessive case.

Base forms:

• sama = same
• kone = machine / plane

Inessive forms:

• samassa = in the same
• koneessa = in/on the plane

Together:

• samassa koneessa = on the same plane

The adjective agrees with the noun in case and number, so both words take the same case ending.

Finnish often uses tulla very naturally for things arriving or coming with transport.

So:

• Matkatavara tuli samalla lennolla. = The luggage came on the same flight.
• Laukku tuli perille myöhässä. = The bag arrived late.

Using saapui would also be understandable in many contexts, but tuli is very common and idiomatic here.

It can mean either he or she.

Finnish does not normally distinguish gender in third-person singular personal pronouns:

• hän = he / she

So the exact gender must come from context, if it matters at all.

The sentence breaks down like this:

• Hän saapui saapumisaulaan
  = He/She arrived at the arrivals hall

• ilman että
  = without

• hänen matkatavaransa tuli samassa koneessa
  = his/her luggage came on the same plane

So the overall structure is:

main clause + ilman että + subordinate clause

This is a common way in Finnish to say without X happening.

Yes. Depending on style and context, Finnish might also use a more compact expression, for example with ilman plus a noun phrase.

A simpler idea might be:

• Hän saapui saapumisaulaan ilman matkatavaroitaan. = He/She arrived at the arrivals hall without his/her luggage.

But that version does not explicitly say that the luggage failed to arrive on the same plane. The original sentence gives that extra information.

So the original is more specific:

• the person arrived,
• but the luggage did not come on that same aircraft.

It is understandable, but some learners may feel it is slightly awkward or heavy in style.

Reasons include:

• saapui saapumisaulaan has a repetitive sound
• ilman että clauses can feel a bit formal or written, depending on context

A native speaker might choose a smoother wording in real life, but grammatically the sentence is still useful for learning because it shows several important structures:

• destination case (saapumisaulaan)
• possession (hänen matkatavaransa)
• collective noun usage (matkatavara)
• clause with ilman että
• travel expression (samassa koneessa)

Usually here it means his/her luggage, but possessive suffixes in Finnish can sometimes also overlap with reflexive meanings depending on context.

In this sentence:

• hänen matkatavaransa most naturally means his/her luggage

Because hänen is present, the interpretation is clear: it is the luggage belonging to that person.

Without hänen, the form matkatavaransa could be more context-dependent.

Finnish punctuation rules are not exactly the same as English punctuation rules. A subordinate clause does not always need to be separated the same way an English learner might expect.

In careful writing, punctuation depends on the structure and style of the sentence. Many Finnish sentences with subordinate clauses do use a comma, especially when the subordinate clause follows the main clause. So some writers might write:

• Hän saapui saapumisaulaan, ilman että hänen matkatavaransa tuli samassa koneessa.

But punctuation usage can vary a bit by style, and the key learning point here is the grammar, not the comma.

Here are the main dictionary forms:

• hän = he / she
• saapua = to arrive
• saapumisaula = arrivals hall
• ilman = without
• että = that
• hänen = his / her
• matkatavara = luggage
• tulla = to come
• sama = same
• kone = plane / machine

This can help you see how the inflected forms are built:

• saapui ← saapua
• saapumisaulaan ← saapumisaula
• matkatavaransa ← matkatavara
  • possessive suffix
• tuli ← tulla
• samassa koneessa ← sama kone in the inessive case