Short answer: you don’t. In Prefect 3.x,

FlowRunContext

doesn’t expose deployment info. Use the runtime API instead. Example:

from prefect import flow
from prefect.runtime import deployment

@flow
def my_flow():
    print(f"Deployment name: {deployment.name}")

if __name__ == "__main__":
    my_flow()

Notes: - This only works when the flow is running from a deployment. Outside of that, accessing

deployment.name

will error — wrap it in a try/except if you’re feeling cautious. -

FlowRunContext

in 3.x does not include a

deployment_id

or similar; that’s by design. Docs, for when you absolutely must read more: - Runtime context - Deployments