Om det blir en försening igen, vill jag veta nästa avgång direkt.

Here om means if and introduces a condition: if there is a delay again...

Swedish om can also mean whether in other sentences, but not here.

Swedish very often uses the present tense for future meaning when the context already makes the time clear.

So Om det blir en försening igen literally looks like If it becomes a delay again, but in natural English it means If there is a delay again or If there ends up being a delay again.

This is especially common in om-clauses.

Det is a dummy or formal subject, similar to English it in it is raining.

It does not refer to a specific thing. Swedish often needs a subject in the sentence, even when no real subject is being named.

So det blir en försening is an idiomatic way to say there will be a delay / there is a delay.

Because det blir en försening is the natural way to express that a delay arises or occurs.

The verb bli often has the sense of become, turn into, or end up being, and in travel situations it is commonly used for unexpected changes:

• Det blir en försening = There will be a delay
• Det blir problem = There will be problems

Det är en försening is much less natural in this context.

This is because of the Swedish V2 rule in main clauses.

When the sentence starts with something other than the subject, the finite verb still has to come in the second position. Here, the whole om-clause comes first:

Om det blir en försening igen, ...

So the main clause begins with the verb vill, followed by the subject jag:

..., vill jag veta nästa avgång direkt.

If the sentence started directly with the subject, then it would be:

Jag vill veta nästa avgång direkt.

Igen means again.

In this sentence it means the delay is happening once more:

Om det blir en försening igen = If there is a delay again

Its position here is natural. Swedish often places igen late in the clause.

Because försening is an en-word in Swedish, so its indefinite singular form is en försening = a delay.

Some useful forms are:

• en försening = a delay
• förseningen = the delay
• förseningar = delays
• förseningarna = the delays

With words like nästa (next), förra (last/previous), and samma (same), Swedish often uses the noun without the separate definite article and without the definite ending.

So:

• nästa avgång = the next departure

This is the normal way to say it.

Den nästa avgången is usually unnatural here unless you are making a strong contrast between one next departure and another.

Avgång means departure, especially in transport contexts such as trains, buses, ferries, or flights.

So nästa avgång means the next departure or the next service leaving.

By itself, avgång does not tell you whether it is a bus, train, or plane. The wider context would tell you that.

Yes, both are possible, but they are slightly different in nuance.

• veta = to know
• få veta = to find out / be told / get to know

So:

• vill jag veta nästa avgång direkt = I want to know the next departure immediately
• vill jag få veta nästa avgång direkt = I want to be informed of the next departure immediately

The version with veta is perfectly natural and focuses on wanting that information.

Here direkt means immediately, right away, or straight away.

It shows urgency: the speaker does not want to wait for the information.

Putting direkt at the end is very natural in Swedish.

Not always. In Swedish, a comma after an introductory subordinate clause is often optional, especially in shorter sentences.

So both of these are possible:

• Om det blir en försening igen, vill jag veta nästa avgång direkt.
• Om det blir en försening igen vill jag veta nästa avgång direkt.

The comma can make the sentence easier to read, but it is not strictly required in every case.