Lennon ajan kuuntelen podcastia ja yritän rentoutua.

Lennon ajan means for the duration of the flight / during the flight.

It uses:

• lennon = the genitive form of lento (flight)
• ajan = the accusative/genitive-like form of aika (time), used in this expression

So lennon ajan literally means something like the flight's duration.

Finnish also has lennon aikana, which also means during the flight. The difference is small:

• lennon ajan = for the whole duration of the flight
• lennon aikana = during the flight, at some point(s) in that time

In many everyday situations, both are possible, but lennon ajan slightly emphasizes the entire time span.

Because the expression X:n ajan requires the first noun to be in the genitive.

So:

• lento = flight
• lennon = of the flight / flight's

This is a very common Finnish pattern for expressing duration:

• päivän ajan = for a day
• matkan ajan = during the trip
• kokouksen ajan = during the meeting

So lennon ajan follows the same pattern.

Podcastia is the partitive singular of podcasti.

After verbs like kuunnella (to listen to), the object is very often in the partitive, especially when the action is viewed as ongoing or not presented as a completed whole.

So:

• kuuntelen podcastia = I’m listening to a podcast / I listen to a podcast

This feels natural because listening is typically an ongoing activity, not something completed in one instant.

Compare:

• luen kirjaa = I’m reading a book
• katson elokuvaa = I’m watching a movie
• kuuntelen musiikkia = I’m listening to music

The partitive is very common in this kind of sentence.

Here it most naturally means a podcast.

The form podcastia can sometimes be ambiguous out of context, because Finnish partitive forms do not work exactly like English articles. Finnish has no a/an/the.

In this sentence, the most natural reading is:

• I listen to a podcast and try to relax.

If you wanted to make it clearly plural, you would usually say:

• kuuntelen podcasteja = I listen to podcasts / I’m listening to podcasts

So here podcastia is singular partitive.

Because Finnish usually does not need a subject pronoun when the verb ending already shows who the subject is.

Here:

• kuuntelen = I listen
• yritän = I try

The ending -n tells you the subject is minä (I).

So minä can be added for emphasis, but it is normally omitted:

• (Minä) kuuntelen podcastia ja yritän rentoutua.

This is very typical Finnish.

After yrittää (to try), Finnish uses the first infinitive, the basic dictionary form.

So:

• yritän rentoutua = I try to relax

Here:

• yrittää = to try
• rentoutua = to relax

The form rentoutumaan is a different infinitive form, often used with verbs of movement, for example:

• menen rentoutumaan = I’m going to relax
• jään rentoutumaan = I stay to relax

So with yrittää, the correct form is rentoutua.

Rentoutua is an -ua/-yä type verb, and it means to relax or literally to become relaxed.

It is closely related to:

• rento = relaxed, casual
• rentouttaa = to relax something/someone, to make someone relax
• rentoutua = to relax oneself / become relaxed

So:

• Yritän rentoutua = I try to relax.
• Musiikki rentouttaa minua = Music relaxes me.

This distinction is useful:

• rentouttaa = transitive, affects an object
• rentoutua = intransitive/reflexive-like, the subject relaxes

Finnish word order is flexible, and putting lennon ajan first gives the time setting right away:

• Lennon ajan kuuntelen podcastia ja yritän rentoutua.
• Kuuntelen lennon ajan podcastia ja yritän rentoutua.

Both are possible, but the original sentence sounds natural because Finnish often puts time expressions near the beginning.

Starting with lennon ajan gives a sense of:

• During the flight, I listen to a podcast and try to relax.

So the first position is often used for context: time, place, topic, or emphasis.

It can be understood either way, depending on context.

Without extra context, it may mean:

• During the flight, I listen to a podcast and try to relax.

That could describe:

1. what the speaker is doing on a particular flight, or
2. what the speaker typically does on flights

Finnish present tense often covers both simple present and present continuous ideas from English.

So one Finnish sentence can correspond to:

• I listen to a podcast and try to relax during the flight.
• I’m listening to a podcast and trying to relax during the flight.

Context decides which English translation fits best.

Because Finnish often expresses relationships like during, for, or while through case forms and fixed expressions, rather than separate prepositions.

In English:

• during the flight

In Finnish:

• lennon ajan
• or lennon aikana

So instead of a standalone word meaning exactly during, Finnish often builds that meaning into the noun phrase.

This is very normal in Finnish grammar.

Yes, absolutely.

Kuuntelen podcastia lennon ajan ja yritän rentoutua is grammatical and understandable.

The difference is mainly about emphasis and information flow:

• Lennon ajan kuuntelen podcastia...
  Emphasizes the time frame first: During the flight...

• Kuuntelen podcastia lennon ajan...
  Starts with the action: I listen to a podcast...

Finnish allows this kind of movement more freely than English, as long as the sentence remains clear.

Here ja simply means and.

It joins two verbs that share the same subject:

• kuuntelen podcastia = I listen to a podcast
• yritän rentoutua = I try to relax

Because the subject is the same in both parts, Finnish does not repeat minä.

So the structure is:

• [During the flight] [I listen to a podcast] and [I try to relax].

Very straightforward.

Yes, that is a good translation if you want to bring out the nuance of lennon ajan.

Possible natural translations include:

• During the flight, I listen to a podcast and try to relax.
• For the whole flight, I listen to a podcast and try to relax.
• Throughout the flight, I listen to a podcast and try to relax.

The best English version depends on how strongly you want to show the idea of duration. Lennon ajan often has a slight throughout the whole time feeling.