diff --git a/airflow/providers/openlineage/extractors/base.py b/airflow/providers/openlineage/extractors/base.py
index 3f455af86a0d3..c653638a564bc 100644
--- a/airflow/providers/openlineage/extractors/base.py
+++ b/airflow/providers/openlineage/extractors/base.py
@@ -67,7 +67,8 @@ def get_operator_classnames(cls) -> list[str]:
     @cached_property
     def disabled_operators(self) -> set[str]:
         return set(
-            operator.strip() for operator in conf.get("openlineage", "disabled_for_operators").split(";")
+            operator.strip()
+            for operator in conf.get("openlineage", "disabled_for_operators", fallback="").split(";")
         )
 
     @cached_property
diff --git a/airflow/providers/openlineage/plugins/adapter.py b/airflow/providers/openlineage/plugins/adapter.py
index 0ea5d7213b1d9..f6e3c257e6d1c 100644
--- a/airflow/providers/openlineage/plugins/adapter.py
+++ b/airflow/providers/openlineage/plugins/adapter.py
@@ -88,13 +88,13 @@ def get_or_create_openlineage_client(self) -> OpenLineageClient:
 
     def get_openlineage_config(self) -> dict | None:
         # First, try to read from YAML file
-        openlineage_config_path = conf.get("openlineage", "config_path")
+        openlineage_config_path = conf.get("openlineage", "config_path", fallback="")
         if openlineage_config_path:
             config = self._read_yaml_config(openlineage_config_path)
             if config:
                 return config.get("transport", None)
         # Second, try to get transport config
-        transport = conf.getjson("openlineage", "transport")
+        transport = conf.getjson("openlineage", "transport", fallback="")
         if not transport:
             return None
         elif not isinstance(transport, dict):