Δεδομένου ότι έγινε ακύρωση δρομολογίου, ο ναύλος επιστρέφεται.

Δεδομένου ότι is a formal way to say given that, since, or because.

In this sentence, it introduces the reason for the refund:

• Δεδομένου ότι έγινε ακύρωση δρομολογίου = Given that there was a route/service cancellation

It is more formal and administrative than everyday options like:

• επειδή = because
• αφού = since / given that

So this sentence sounds like something from a policy notice, travel terms, or an official announcement.

Here, δεδομένου is part of the fixed expression δεδομένου ότι.

Grammatically, δεδομένου comes from δεδομένος (given), but in this phrase learners are usually best off treating δεδομένου ότι as a set connector meaning given that.

So although the form looks like an adjective or participle, in practice:

• δεδομένου ότι + clause = given that + clause

You do not need to analyze it word-by-word every time to understand or use it.

Both are possible, but they are slightly different in style.

• έγινε ακύρωση δρομολογίου = there was a cancellation of a service/route
• ακυρώθηκε το δρομολόγιο = the service/route was cancelled

The version with έγινε ακύρωση is very common in formal or bureaucratic Greek. It focuses on the event itself — the cancellation — rather than directly on the thing cancelled.

So:

• έγινε ακύρωση sounds administrative and impersonal
• ακυρώθηκε το δρομολόγιο sounds more direct and often more natural in everyday speech

Έγινε is the aorist of γίνομαι, which usually means to become, to happen, or to take place.

In this sentence:

• έγινε ακύρωση literally means something like a cancellation happened / took place
• in natural English, that becomes there was a cancellation

This is a very common Greek pattern:

• έγινε λάθος = a mistake happened / there was a mistake
• έγινε αλλαγή = a change took place / there was a change
• έγινε ακύρωση = there was a cancellation

Because it depends on the noun ακύρωση.

Greek often uses the genitive after nouns to show what something relates to:

• ακύρωση δρομολογίου = cancellation of a route/service
• αλλαγή προγράμματος = change of schedule
• έκδοση εισιτηρίου = issue of a ticket

So:

• ακύρωση = cancellation
• δρομολογίου = of a route/service

This is a very common pattern in formal Greek.

Greek often omits the article in formal expressions of this kind, especially in administrative or written language.

So έγινε ακύρωση δρομολογίου sounds natural in that register.

You could also see more explicit versions such as:

• έγινε η ακύρωση του δρομολογίου

But that sounds more specific: the cancellation of the service took place.

Without the article, the phrase is more compact and policy-like, which fits this sentence well.

Δρομολόγιο can mean several related things depending on context:

• a route
• a scheduled service
• an itinerary
• a run/journey in transport contexts

In travel or transport language, ακύρωση δρομολογίου usually means that a scheduled trip or service was cancelled — for example a bus, ferry, train, or flight service.

So while the literal translation may vary, the practical meaning is something like:

• service cancellation
• cancellation of the scheduled route/journey

Not exactly.

Ο ναύλος means fare — the amount charged for transport.

Το εισιτήριο means ticket.

So:

• ο ναύλος επιστρέφεται = the fare is refunded
• το εισιτήριο επιστρέφεται would suggest the ticket is returned/refunded, depending on context

In transport or travel policies, Greek often uses ναύλος when talking about payment, fare conditions, and refunds.

Because Greek often uses the passive in formal statements, especially for rules, policies, and procedures.

• ο ναύλος επιστρέφεται = the fare is refunded / returned
• επιστρέφουν τον ναύλο = they refund the fare

The passive sounds more impersonal and official, which is exactly the tone of this sentence.

This is very common in notices and terms-and-conditions language.

Because the two verbs are doing different jobs.

• έγινε refers to the event that happened: a cancellation occurred
• επιστρέφεται states the rule or outcome that applies in such a case

So the present tense here does not necessarily mean the refund is happening right now. It often expresses a general policy:

• If/when there has been a cancellation, the fare is refunded

This is a very common use of the present in formal Greek.

Yes.

The main clause is:

• ο ναύλος επιστρέφεται

Here:

• ο ναύλος = the subject
• επιστρέφεται = is refunded / is returned

So literally the structure is:

• the fare is refunded

Even though English might sometimes prefer a more agent-based wording, Greek is perfectly happy with this passive structure.

Yes. Greek word order is fairly flexible.

This sentence begins with the reason clause:

• Δεδομένου ότι έγινε ακύρωση δρομολογίου, ο ναύλος επιστρέφεται.

But you could also place the main clause first:

• Ο ναύλος επιστρέφεται, δεδομένου ότι έγινε ακύρωση δρομολογίου.

The original order is very natural for formal writing because it presents the condition/reason first and then the result.

It sounds natural, but specifically formal and bureaucratic.

An everyday speaker might be more likely to say something like:

• Αφού ακυρώθηκε το δρομολόγιο, επιστρέφεται ο ναύλος.
• Επειδή ακυρώθηκε το δρομολόγιο, θα σας επιστρέψουμε τον ναύλο.

The original sentence is the kind of Greek you might see in:

• travel company policies
• refund regulations
• customer service notices
• official announcements

So yes, it is natural — just not especially conversational.