Enligt tidtabellen ska bussen komma om tre minuter, men den kommer ofta senare ändå.

Enligt means according to.

So Enligt tidtabellen = According to the timetable.

It is a common preposition used when you refer to a source of information:

• Enligt läraren = according to the teacher
• Enligt tidningen = according to the newspaper
• Enligt planen = according to the plan

It is not followed by att.

Tidtabellen is the definite form, meaning the timetable.

That makes sense here because the sentence refers to a specific timetable: the one for that bus.

• en tidtabell = a timetable
• tidtabellen = the timetable

In Swedish, definite forms are very common when English would also use the.

Here ska does not mainly mean strong obligation like must. It often means something like:

• is supposed to
• is scheduled to
• is expected to

So bussen ska komma om tre minuter means the bus is scheduled/expected to arrive in three minutes.

This is a very common use of ska for plans, schedules, and expectations.

Because ska is a modal verb, and modal verbs are followed by the infinitive form of the main verb.

So:

• ska komma
• kan komma
• vill komma
• måste komma

Not ska kommer.

This works similarly to English:

• will come
• can come
• must come

not will comes.

Literally it means come, but in transport contexts Swedish often uses komma where English would naturally say arrive.

So:

• Bussen kommer om tre minuter = The bus arrives in three minutes / will be here in three minutes

This is very normal Swedish.

Om tre minuter means in three minutes.

Here om expresses time in the future:

• om en timme = in an hour
• om två dagar = in two days
• om en stund = in a little while

This is different from other meanings of om, such as about:

• en bok om Sverige = a book about Sweden

So the meaning depends on context.

After mentioning bussen once, Swedish uses the pronoun den to refer back to it.

• bussen is a common-gender noun
• common-gender nouns take den

So:

• bussen ... den ...

Compare:

• bilen ... den ...
• tåget ... det ...

Because tåget is neuter, it would take det instead.

Because Swedish main clauses follow the V2 rule: the finite verb normally comes in the second position.

In the clause:

• den = first element
• kommer = finite verb, so it must come second
• ofta = adverb, comes after the finite verb

So:

• den kommer ofta senare

not:

• den ofta kommer senare

This is one of the most important word-order rules in Swedish.

Because the second clause is talking about what actually often happens, not what is scheduled.

• ska komma = is supposed/scheduled to come
• kommer ofta senare = often comes later

So the contrast is:

• according to the timetable, this is the plan
• but in reality, it is often late

Using kommer in the second clause makes that contrast very natural.

Ofta means often and senare means later.

Together, kommer ofta senare means often comes later or more naturally in English, is often late.

Swedish is expressing it literally as comes later, but English often prefers is late.

Senare is the comparative form, meaning later.

• sen = late
• senare = later

So:

• Bussen är sen = The bus is late
• Bussen kommer senare = The bus comes later / arrives later

Here the idea is that it comes later than the timetable says, so the comparative form is natural.

Ändå adds a sense like:

• anyway
• all the same
• nevertheless
• even so

So men den kommer ofta senare ändå means something like:

• but it often comes later anyway
• but it often comes later all the same

It emphasizes the contrast: the timetable says one thing, but reality is different.

Yes. Men means but, and what follows it is still a main clause.

So the word order stays normal main-clause order:

• men den kommer ofta senare ändå

The finite verb kommer stays in second position.

This is different from a subordinate clause introduced by words like att, eftersom, or när, where the word order changes.

Yes. That would still be natural and would mean something like:

• The bus is supposed to come in three minutes
• The bus should be here in three minutes

Adding Enligt tidtabellen makes the source explicit and strengthens the idea that this is what the schedule says, not necessarily what really happens.

Yes, tidtabell is a normal word for a timetable or schedule, especially for transport.

Depending on context, Swedish may also use other words:

• schema = schedule, timetable for school/work
• tabell = table/chart; not usually the same as timetable
• körschema = running order, schedule
• turlista = route schedule / timetable for services

For buses, trains, and public transport, tidtabell is very natural.

A natural everyday English version would be:

• According to the timetable, the bus should arrive in three minutes, but it’s often late anyway.

That is not a word-for-word translation, but it matches the Swedish meaning and tone very well.