Vaikka bussi on myöhässä, ehdin silti kokoukseen ajoissa.

Here vaikka introduces a concession: it means something like although / even though.

• Vaikka bussi on myöhässä = Although the bus is late
• It sets up a contrast with the main clause.
• In Finnish, vaikka does not force a special verb position the way English sometimes does in formal style. The clause keeps normal word order: bussi on myöhässä.

Because myöhässä and myöhään mean different things.

• myöhässä = late, in the sense of being delayed or not on time
  
  • Bussi on myöhässä = The bus is late
• myöhään = late in the sense of at a late time
  • Tulin myöhään = I came late
  • Valvoin myöhään = I stayed up late

So here the bus is delayed, which is why myöhässä is the correct form.

Ehdin is the 1st person singular present form of the verb ehtiä.

In this sentence, ehtiä means:

• to have enough time
• to make it in time
• to manage to get somewhere before it is too late

So ehdin kokoukseen ajoissa means something like:

• I’ll make it to the meeting in time
• I have time to get to the meeting on time

A useful pattern is:

• ehtiä + illative/place + ajoissa
• ehtiä + infinitive
  • Ehdin syödä = I have time to eat
  • Ehdin junaan = I make it to the train

Finnish often uses the present tense for future meaning when the time is clear from context.

So ehdin silti kokoukseen ajoissa is literally present tense, but in context it means:

• I’ll still make it to the meeting on time

This is very normal in Finnish. Finnish does not have a separate future tense like English does.

Silti means still / nevertheless / even so.

It emphasizes the contrast:

• Although the bus is late, I’ll still make it to the meeting on time.

The sentence would still be grammatical without silti, but silti makes the concessive idea stronger and more natural.

Compare:

• Vaikka bussi on myöhässä, ehdin kokoukseen ajoissa.
• Vaikka bussi on myöhässä, ehdin silti kokoukseen ajoissa.

The second one more clearly highlights: despite that problem, the result is still okay.

They are related, but they do slightly different jobs.

• vaikka introduces the concession clause: although X
• silti appears in the main clause and means still / nevertheless

Together they create a very common pair:

• Vaikka ..., silti ... = Although ..., still ...

English can do this too, although sometimes it sounds a bit more emphatic than necessary:

• Although the bus is late, I’ll still make it on time.

So yes, there is some overlap, but in Finnish this combination is perfectly natural.

Kokoukseen is the illative form of kokous (meeting), and it means into / to the meeting.

The verb ehtiä here is about successfully reaching a destination in time, so Finnish uses the form that marks movement into something:

• kokous = meeting
• kokoukseen = into/to the meeting

Compare:

• Olen kokouksessa = I am in the meeting
  
  • kokouksessa = in the meeting
• Menen kokoukseen = I am going to the meeting
• Ehdin kokoukseen = I make it to the meeting

So kokoukseen is used because the sentence is about arriving there.

Ajoissa means on time / in time, not late.

• Ehdin ajoissa = I’ll make it in time
• Saavuin ajoissa = I arrived on time

Aikaisin means early.

• Saavuin aikaisin = I arrived early

So:

• ajoissa = before the deadline / not too late
• aikaisin = earlier than expected or earlier than necessary

In this sentence, the meaning is clearly on time, so ajoissa is the right word.

Because Finnish usually leaves subject pronouns out when the verb ending already shows who the subject is.

• ehdin already means I make it / I have time
• The -n ending marks 1st person singular

So (minä) ehdin both mean I make it / I’ll make it, but usually Finnish prefers the version without the pronoun unless there is a reason to stress it.

For example:

• Ehdin silti kokoukseen ajoissa. = neutral
• Minä ehdin silti kokoukseen ajoissa. = more emphasis, like I will make it, though

The basic sentence is natural as written, but Finnish word order is fairly flexible because endings show the grammatical roles.

The given version is very neutral:

• Vaikka bussi on myöhässä, ehdin silti kokoukseen ajoissa.

Other orders are possible for emphasis:

• Vaikka bussi on myöhässä, silti ehdin kokoukseen ajoissa.
• Vaikka bussi on myöhässä, ehdin kokoukseen silti ajoissa.
• Minä ehdin silti kokoukseen ajoissa, vaikka bussi on myöhässä.

These can sound slightly different in focus, but the original is very natural and standard.

Because Vaikka bussi on myöhässä is a subordinate clause, and Finnish normally separates it from the main clause with a comma.

So the structure is:

• subordinate clause: Vaikka bussi on myöhässä
• main clause: ehdin silti kokoukseen ajoissa

Using the comma here is standard Finnish punctuation.

Yes:

• Vaikka bussi on myöhässä, ehdin kokoukseen ajoissa.

That is still correct and natural.

Adding silti just makes the contrast more explicit:

• problem: the bus is late
• result anyway: I’ll make it on time

So silti is not required for grammar, but it is very useful for nuance.