Sefer numarası ve varış limanı bilette yazıyor.

This is a very common Turkish noun-compound pattern.

In Turkish, when one noun is linked to another like trip number, the second noun usually takes a 3rd-person possessive ending:

• numara = number
• sefer numarası = trip/service number

So numarası here does not mean his/her number. In this structure, it simply marks the noun compound.

A rough literal breakdown is:

• sefer = trip/service
• numarası = its number

Together: trip number / service number

For the same reason. Varış limanı is another noun compound.

• varış = arrival
• liman = port
• limanı = port + compound ending

So varış limanı means arrival port.

This is parallel to sefer numarası:

• sefer numarası = trip number
• varış limanı = arrival port

No. That is a very common beginner confusion.

The -ı in limanı is not the accusative ending here. It is the compound/possessive ending used in noun compounds.

So:

• liman = port
• varış limanı = arrival port

If it were accusative, it would be functioning as a definite direct object, but in this sentence it is part of the subject phrase.

The same is true for numarası: that ending is part of the compound structure, not object marking.

Varış means arrival. It is a noun formed from the verb varmak, which means to arrive.

So:

• varmak = to arrive
• varış = arrival

That is why varış limanı literally means arrival port.

Bilette means on the ticket / in the ticket / at the ticket, depending on context. In this sentence, the natural meaning is on the ticket.

It is made from:

• bilet = ticket
• -de / -da / -te / -ta = locative suffix, meaning in / on / at

So:

• bilet + te = bilette

Why -te and not -de? Because of consonant harmony: after a voiceless consonant like t, the suffix appears as -te rather than -de.

Because Turkish usually uses a case ending instead of a separate preposition.

English says:

• on the ticket

Turkish says:

• bilet-te

That -te ending carries the idea of in / on / at, and the exact English translation depends on context.

Yes, yazıyor literally comes from yazmak = to write, and very often it means is writing.

But with things like signs, tickets, labels, and documents, Turkish often uses yazıyor to mean:

• it says
• it is written
• it appears in writing

So in this sentence, yazıyor does not mean that the trip number and arrival port are actively writing something. It means they are written on the ticket or shown on the ticket.

This is another good question.

English expects something like are written, because there are two items: the trip number and the arrival port.

In Turkish, however, a singular verb is often natural with inanimate subjects, especially when listing pieces of information. So yazıyor sounds normal here.

Using yazıyorlar would usually sound odd, because Turkish does not normally treat inanimate things as plural they in the same way English does.

Yes. Turkish word order is flexible, although the verb usually stays at the end.

This sentence can also appear as:

• Bilette sefer numarası ve varış limanı yazıyor.

That version is also natural. Putting bilette earlier may place a little more focus on where the information appears.

So the original order is normal, but not the only possible order.

Because Turkish has no definite article like English the.

So bilette can mean on the ticket if the ticket is already understood from context.

If you wanted to emphasize a/one ticket, Turkish could use bir:

• bir bilette = on a ticket / on one ticket

But in many ordinary sentences, Turkish simply leaves articles out and lets context do the work.

No. Turkish also often uses yazılı for written.

For example:

• Sefer numarası ve varış limanı bilette yazılı.

That means essentially the same thing: the information is written on the ticket.

A useful difference to remember is:

• yazıyor = it says / it is written / it appears
• yazılı = written as an adjective/state

Both are common, but yazıyor is very natural when talking about what a written document or sign says.