Η πτήση αργεί λόγω ομίχλης.

Η is the feminine singular definite article, meaning the.

It matches πτήση because πτήση is a feminine noun:

• η πτήση = the flight

So Η πτήση is the subject of the sentence.

Yes. In Greek, every noun has a grammatical gender, and you need to learn it as part of the word.

So it is best to learn:

• η πτήση = flight

not just πτήση by itself.

Here, πτήση is:

• feminine
• singular
• nominative, because it is the subject of the verb

αργεί is the 3rd person singular present form of the verb αργώ.

In this sentence it means something like:

• is late
• is running late
• is delayed

It agrees with η πτήση, which is singular:

• η πτήση αργεί = the flight is late / delayed

Because Greek does not need it in this structure.

In English, we often say:

• The flight is delayed

But in Greek, the idea is expressed with the single verb αργεί:

• Η πτήση αργεί

So Greek is not saying the flight is + delayed word-for-word. It is using a verb that already contains the idea of being late.

More literally, it means is late or is running late.

But in contexts like travel, announcements, transport, and schedules, English often translates it as is delayed, because that sounds more natural.

So:

• literal sense: The flight is late
• natural English translation in context: The flight is delayed

λόγω means:

• because of
• due to

It is a common way to give a reason, especially in more formal or neutral language. That makes it very natural in announcements such as airport, train, or official messages.

So:

• λόγω ομίχλης = because of fog / due to fog

Because λόγω is followed by the genitive case.

The basic noun is:

• η ομίχλη = fog

After λόγω, it changes to genitive singular:

• λόγω ομίχλης = due to fog

So:

• nominative: η ομίχλη
• genitive: της ομίχλης

This is a very common pattern:

• λόγω βροχής = due to rain
• λόγω καθυστέρησης = due to delay
• λόγω ομίχλης = due to fog

Greek often omits the article after λόγω when speaking about a cause in a general way.

So:

• λόγω ομίχλης = due to fog

This is very natural.

You may also see:

• λόγω της ομίχλης

That can sound more specific, like due to the fog. But in announcements and standard phrasing, the version without the article is extremely common.

A simple pronunciation guide would be:

ee PTEE-see ar-GHEE LO-gho o-MEE-hlis

A few useful notes:

• πτήση has the stress on the first syllable: ΠΤΗ-ση
• αργεί has the stress on the last syllable: αρ-ΓΕΙ
• ομίχλης has the stress on μί: ο-ΜΙ-χλης

If you want to sound natural, keep the stress clear:

• Η ΠΤΗΣΗ αργεί λόγω ομίχλης.

Yes. Greek word order is more flexible than English.

The neutral order here is:

• Η πτήση αργεί λόγω ομίχλης.

But you could also say:

• Λόγω ομίχλης, η πτήση αργεί.

That puts more focus on the reason first: Due to fog, the flight is delayed.

The original version sounds very natural and straightforward.

No. You could also use other expressions, such as:

• εξαιτίας της ομίχλης = because of the fog
• από την ομίχλη = from the fog / because of the fog, in some contexts

But λόγω is especially common in formal, written, and announcement-style Greek, so it fits this sentence very well.