diff --git a/airflow/providers/google/cloud/transfers/bigquery_to_gcs.py b/airflow/providers/google/cloud/transfers/bigquery_to_gcs.py
index 7ec62db9bfbd0..f9f7dd7241531 100644
--- a/airflow/providers/google/cloud/transfers/bigquery_to_gcs.py
+++ b/airflow/providers/google/cloud/transfers/bigquery_to_gcs.py
@@ -143,6 +143,10 @@ def _handle_job_error(job: BigQueryJob | UnknownJob) -> None:
             raise AirflowException(f"BigQuery job {job.job_id} failed: {job.error_result}")
 
     def _prepare_configuration(self):
+        """
+        This configuration define necessary argument for the data transfer, which related to project
+        where the BigQuery table resides.
+        """
         source_project, source_dataset, source_table = self.hook.split_tablename(
             table_input=self.source_project_dataset_table,
             default_project_id=self.project_id or self.hook.project_id,
@@ -183,7 +187,7 @@ def _submit_job(
 
         return hook.insert_job(
             configuration=configuration,
-            project_id=configuration["extract"]["sourceTable"]["projectId"],
+            project_id=self.project_id if self.project_id is not None else hook.project_id,
             location=self.location,
             job_id=job_id,
             timeout=self.result_timeout,