diff --git a/airflow/cli/commands/legacy_commands.py b/airflow/cli/commands/legacy_commands.py
index c9fddec2d76fe..11016a427dcfe 100644
--- a/airflow/cli/commands/legacy_commands.py
+++ b/airflow/cli/commands/legacy_commands.py
@@ -48,6 +48,7 @@
     "create_user": "users create",
     "delete_user": "users delete",
     "dags backfill": "backfill create",
+    "webserver": "api-server",
 }
 
 
diff --git a/newsfragments/47131.significant.rst b/newsfragments/47131.significant.rst
new file mode 100644
index 0000000000000..e8bf03ff3eae5
--- /dev/null
+++ b/newsfragments/47131.significant.rst
@@ -0,0 +1,12 @@
+The Airflow UI is now started with the ``airflow api-server`` command. The ``airflow webserver`` command has been removed.
+
+* Types of change
+
+  * [ ] Dag changes
+  * [ ] Config changes
+  * [ ] API changes
+  * [x] CLI changes
+  * [ ] Behaviour changes
+  * [ ] Plugin changes
+  * [ ] Dependency changes
+  * [ ] Code interface changes