I'm going to be late. vs I'm running late.

Both phrases are correct and commonly used in English to indicate that someone will arrive after the expected time. 'I'm going to be late' implies a future action of being late, while 'I'm running late' suggests that the person is currently behind schedule. The choice between the two depends on the specific context and timing of the lateness.

Last updated: March 26, 2024

I'm going to be late.

This phrase is correct and commonly used to indicate that someone will arrive after the expected time.

This phrase is used to inform others that you will not arrive on time for a future event or appointment.

Examples:

I'm going to be late for the meeting tomorrow.
She said she's going to be late for the party.
He's going to be late for his flight if he doesn't hurry.
We're going to be late for the movie if we don't leave now.
Are you going to be late for the train?

Alternatives:

I will arrive late.
I will be delayed.
I will not make it on time.
I will be running behind schedule.
I will be tardy.

I'm running late.

This phrase is correct and commonly used to indicate that someone is currently behind schedule.

This phrase is used to inform others that you are currently delayed and may not arrive on time for an event or appointment.

Examples:

I'm running late for the meeting.
She's running late for the concert.
He's running late for his appointment.
We're running late for the movie.
Are you running late for the train?

Alternatives:

I'm behind schedule.
I'm delayed.
I'm falling behind.
I'm running behind.
I'm not on time.

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I'm going to be late. vs I'm running late.