Setibanya di stasiun, kami langsung mengantre di loket.

Setibanya means something like upon arriving, when (someone) arrived, or as soon as (someone) arrived.

It is built from:

• tiba = to arrive
• se- ... -nya = a pattern that can give the sense of upon / at the moment of

So setibanya di stasiun means upon arrival at the station or when we arrived at the station.

In natural English, you usually would not translate it word-for-word. You would translate the whole phrase more smoothly.

Because Indonesian often leaves the subject understood from context.

In this sentence:

• Setibanya di stasiun = upon arriving at the station
• kami langsung mengantre di loket = we immediately lined up at the counter

The subject kami appears in the main clause, so it is understood that the arrival also refers to kami.

This is very normal in Indonesian. English often repeats the subject, but Indonesian often does not need to.

They are very close in meaning, but not exactly the same in style.

• Setibanya di stasiun = more compact, written, and smooth; often upon arriving at the station
• Ketika kami tiba di stasiun = more explicit; when we arrived at the station

So yes, they are basically expressing the same event, but setibanya sounds a bit more concise and formal/written.

Langsung here means immediately, right away, or straightaway.

So:

• kami langsung mengantre di loket = we immediately queued at the counter

It shows that there was no delay between arriving and lining up.

This is a very important Indonesian distinction.

• kami = we, but not including the listener
• kita = we, including the listener

So in this sentence, kami tells you that the speaker and their group arrived and queued, but the person being spoken to was not part of that group.

English only has we, so learners often need to pay special attention to this.

Yes. Mengantre is the verb form of antre, which means to queue / to stand in line.

So:

• antre = queue, line up
• mengantre = to queue / to stand in line

In everyday Indonesian, you may also see or hear antri and mengantri, which are very common. But antre and mengantre are the standard forms in modern formal Indonesian.

In both cases, di is a preposition meaning in, at, or on, depending on context.

• di stasiun = at the station
• di loket = at the counter / ticket window

A very common learner issue is confusing prepositional di with the passive prefix di-.

Here it is a preposition, so it is written separately:

• di stasiun
• di loket

But the passive prefix is written attached:

• dibeli = bought
• ditulis = written

Loket usually means a counter, ticket window, or service booth, especially in places like:

• stations
• bus terminals
• government offices
• banks
• hospitals

In this sentence, di loket most likely means at the ticket counter or at the service window.

The comma separates the opening time-related phrase from the main clause.

• Setibanya di stasiun, = upon arriving at the station,
• kami langsung mengantre di loket. = we immediately queued at the counter.

This is similar to English punctuation in sentences like:

• After arriving at the station, we immediately lined up at the counter.

The comma helps readability and is very natural here.

It is natural and correct, and it leans a little toward a written or neat narrative style because of setibanya.

In casual speech, people might say something more like:

• Sampai di stasiun, kami langsung antre di loket.
• Pas sampai di stasiun, kami langsung antre di loket.

These are less formal and more conversational.

So the original sentence is not stiff, but it is a bit more polished than everyday casual speech.

Yes, absolutely.

• setibanya di stasiun
• sesampainya di stasiun

Both can mean upon arriving at the station.

The second one comes from sampai rather than tiba. In many contexts they are interchangeable, although tiba can sound slightly more formal than sampai.

The sentence begins with the time/context phrase, then gives the main action:

• Setibanya di stasiun = when we arrived at the station
• kami langsung mengantre di loket = we immediately queued at the counter

This order is very common in Indonesian. It sets the scene first, then gives the main event.

You could think of it as:

1. arrival at the station
2. immediate action at the counter

That flow sounds natural in Indonesian narration.

Yes. In natural English, you might express it either way.

Literally, di loket points to the location: at the counter/window. So the phrase means they formed or joined a queue there.

Depending on the situation, a natural translation could be:

• we immediately lined up at the ticket counter
• we immediately queued at the window
• we immediately got in line at the counter

So the exact English wording depends on what sounds most natural in context.