Aviokompanija će identifikovati prtljag danas, osim ako let kasni.

This is the future I tense in Serbian.

It is formed with:

• the clitic form of hteti (ću, ćeš, će, ćemo, ćete, će)
• plus the infinitive of the main verb

So here:

• će = will
• identifikovati = to identify

Together: će identifikovati = will identify

With the full set:

• ja ću identifikovati
• ti ćeš identifikovati
• on/ona/ono će identifikovati
• mi ćemo identifikovati
• vi ćete identifikovati
• oni/one/ona će identifikovati

Serbian also often allows the future to be written as one unit with some verbs, but with a verb like identifikovati, će identifikovati is the normal pattern.

Because after ću/ćeš/će..., Serbian normally uses the infinitive of the main verb.

So unlike English, where the verb changes in will identify / identifies / identified, Serbian here keeps the main verb in the infinitive:

• će identifikovati
• not a special future form of identifikovati

The future meaning is carried by će, not by changing the main verb.

Aviokompanija means airline.

It is a feminine noun:

• singular: aviokompanija
• plural: aviokompanije

In this sentence, it is the subject, so it is in the nominative singular.

You may also hear:

• avio-kompanija (same meaning, just hyphenated spelling in some contexts)
• sometimes learners also meet avio kompanija

Prtljag is in the accusative, because it is the direct object of identifikovati.

However, prtljag is an inanimate masculine noun, and many inanimate masculine nouns have the same form in nominative and accusative singular.

So:

• nominative: prtljag = baggage/luggage
• accusative: prtljag = baggage/luggage

That is why the form does not visibly change.

Serbian has no articles. There is no direct equivalent of English a/an/the.

So:

• prtljag can mean baggage, the baggage, or sometimes a piece/category of baggage, depending on context
• let can mean flight or the flight, depending on context

The sentence relies on context rather than articles.

Osim ako means unless.

So:

• Aviokompanija će identifikovati prtljag danas, osim ako let kasni.
• The airline will identify the baggage today, unless the flight is delayed.

It introduces an exception to what was said before.

A useful pattern is:

• X će se desiti, osim ako Y...
• X will happen, unless Y...

Examples:

• Doći ću, osim ako se razbolim. = I’ll come, unless I get sick.
• Ići ćemo sutra, osim ako pada kiša. = We’ll go tomorrow, unless it’s raining.

After osim ako (unless), Serbian often uses the present tense to refer to a future possibility.

So:

• osim ako let kasni = unless the flight is delayed / unless the flight is running late

This is very natural in Serbian.

Using a future form there is generally not the normal choice in this structure. Serbian often uses present tense after words like:

• ako = if
• kad/kada = when
• dok = while/until
• osim ako = unless

even when English might use a future idea.

Kasni is the 3rd person singular present tense of kasniti.

• kasniti = to be late / to run late / to be delayed
• let kasni = the flight is late or the flight is delayed

In context, English usually translates it more naturally as:

• unless the flight is delayed or
• unless the flight is running late

Here identifikovati is normally treated as a perfective verb: it refers to a completed act of identification.

That fits well with a future sentence like this:

• Aviokompanija će identifikovati prtljag danas = the airline will complete the identification of the baggage today

In Serbian, future statements often use a perfective verb when talking about a single completed action.

A rough contrast would be:

• identifikovati = identify, complete the identification
• an imperfective alternative, where used, would focus more on the process or repeated action

For many learners, the key point is:

• future + perfective is very common when talking about a one-time completed event

Yes. Serbian word order is fairly flexible.

These are all possible, with slightly different emphasis:

• Aviokompanija će identifikovati prtljag danas.
• Aviokompanija će danas identifikovati prtljag.
• Danas će aviokompanija identifikovati prtljag.

The basic meaning stays the same, but the focus shifts:

• ... danas at the end can emphasize today
• Danas ... at the beginning foregrounds the time frame
• će usually stays in the second position area because it is a clitic

So yes, Aviokompanija će danas identifikovati prtljag is completely natural.

Because će is a clitic, and Serbian clitics tend to appear in the second position of the clause.

In:

• Aviokompanija će identifikovati prtljag danas

the first element is Aviokompanija, so the clitic će comes right after it.

If you move another element to the front, the clitic usually follows that fronted element:

• Danas će aviokompanija identifikovati prtljag.

This second-position behavior is a very important feature of Serbian sentence structure.

No. It is grammatical, but Serbian often allows several natural alternatives.

For example:

• Aviokompanija će danas identifikovati prtljag, osim ako let kasni.
• Danas će aviokompanija identifikovati prtljag, osim ako let kasni.

These may sound a bit smoother to some speakers because danas is often placed earlier.

Also, depending on context, a speaker might choose a different verb than identifikovati if they mean something more specific, such as tagging, checking, or locating baggage. But grammatically, the original sentence is fine.

Here are the noun genders:

• aviokompanija — feminine
• prtljag — masculine
• let — masculine

This matters because in Serbian gender affects:

• adjective agreement
• past tense agreement
• some pronouns
• some numeral patterns

In this sentence, you do not see much visible agreement because there are no adjectives and the main tense uses će + infinitive.

In Cyrillic, it is:

• Авиокомпанија ће идентификовати пртљаг данас, осим ако лет касни.

Serbian commonly uses both:

• Latin script
• Cyrillic script

The grammar and meaning stay the same.