diff --git a/airflow-core/docs/howto/custom-view-plugin.rst b/airflow-core/docs/howto/custom-view-plugin.rst
index 3520de1a652ec..024c32f96132d 100644
--- a/airflow-core/docs/howto/custom-view-plugin.rst
+++ b/airflow-core/docs/howto/custom-view-plugin.rst
@@ -118,7 +118,7 @@ Create an Airflow plugin that serves your React application:
 
     from pathlib import Path
     from fastapi import FastAPI
-    from starlette.staticfiles import StaticFiles
+    from fastapi.staticfiles import StaticFiles
     import mimetypes
 
     from airflow.plugins_manager import AirflowPlugin
diff --git a/airflow-core/src/airflow/api_fastapi/app.py b/airflow-core/src/airflow/api_fastapi/app.py
index 337d09b2ce36b..351074b388c78 100644
--- a/airflow-core/src/airflow/api_fastapi/app.py
+++ b/airflow-core/src/airflow/api_fastapi/app.py
@@ -22,7 +22,7 @@
 from urllib.parse import urlsplit
 
 from fastapi import FastAPI
-from starlette.routing import Mount
+from fastapi.routing import Mount
 
 from airflow.api_fastapi.common.dagbag import create_dag_bag
 from airflow.api_fastapi.core_api.app import (
diff --git a/airflow-core/src/airflow/api_fastapi/auth/managers/simple/routes/login.py b/airflow-core/src/airflow/api_fastapi/auth/managers/simple/routes/login.py
index 372aecf603525..2233de8e0b5b6 100644
--- a/airflow-core/src/airflow/api_fastapi/auth/managers/simple/routes/login.py
+++ b/airflow-core/src/airflow/api_fastapi/auth/managers/simple/routes/login.py
@@ -18,7 +18,7 @@
 from __future__ import annotations
 
 from fastapi import Depends, Request, status
-from starlette.responses import RedirectResponse
+from fastapi.responses import RedirectResponse
 
 from airflow.api_fastapi.auth.managers.base_auth_manager import COOKIE_NAME_JWT_TOKEN
 from airflow.api_fastapi.auth.managers.simple.datamodels.login import LoginBody, LoginResponse
diff --git a/airflow-core/src/airflow/api_fastapi/auth/managers/simple/simple_auth_manager.py b/airflow-core/src/airflow/api_fastapi/auth/managers/simple/simple_auth_manager.py
index 301526d7da502..d3c9792777899 100644
--- a/airflow-core/src/airflow/api_fastapi/auth/managers/simple/simple_auth_manager.py
+++ b/airflow-core/src/airflow/api_fastapi/auth/managers/simple/simple_auth_manager.py
@@ -28,11 +28,10 @@
 from pathlib import Path
 from typing import TYPE_CHECKING, Any, TextIO
 
-from fastapi import FastAPI
-from starlette.requests import Request
-from starlette.responses import HTMLResponse
-from starlette.staticfiles import StaticFiles
-from starlette.templating import Jinja2Templates
+from fastapi import FastAPI, Request
+from fastapi.responses import HTMLResponse
+from fastapi.staticfiles import StaticFiles
+from fastapi.templating import Jinja2Templates
 from termcolor import colored
 
 from airflow.api_fastapi.app import AUTH_MANAGER_FASTAPI_APP_PREFIX
diff --git a/airflow-core/src/airflow/api_fastapi/common/parameters.py b/airflow-core/src/airflow/api_fastapi/common/parameters.py
index 2f60b13b27ee4..b3b49480de027 100644
--- a/airflow-core/src/airflow/api_fastapi/common/parameters.py
+++ b/airflow-core/src/airflow/api_fastapi/common/parameters.py
@@ -779,7 +779,7 @@ def _transform_dag_run_states(states: Iterable[str] | None) -> list[DagRunState
         return [None if s in ("none", None) else DagRunState(s) for s in states]
     except ValueError:
         raise HTTPException(
-            status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
             detail=f"Invalid value for state. Valid values are {', '.join(DagRunState)}",
         )
 
@@ -805,7 +805,7 @@ def _transform_dag_run_types(types: list[str] | None) -> list[DagRunType | None]
         return [None if run_type in ("none", None) else DagRunType(run_type) for run_type in types]
     except ValueError:
         raise HTTPException(
-            status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
             detail=f"Invalid value for run type. Valid values are {', '.join(DagRunType)}",
         )
 
@@ -843,7 +843,7 @@ def _transform_ti_states(states: list[str] | None) -> list[TaskInstanceState | N
         return [None if s in ("no_status", "none", None) else TaskInstanceState(s) for s in states]
     except ValueError:
         raise HTTPException(
-            status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
             detail=f"Invalid value for state. Valid values are {', '.join(TaskInstanceState)}",
         )
 
diff --git a/airflow-core/src/airflow/api_fastapi/core_api/app.py b/airflow-core/src/airflow/api_fastapi/core_api/app.py
index 8db1fa66680bc..d4178c0ea1319 100644
--- a/airflow-core/src/airflow/api_fastapi/core_api/app.py
+++ b/airflow-core/src/airflow/api_fastapi/core_api/app.py
@@ -22,13 +22,12 @@
 import warnings
 from pathlib import Path
 
-from fastapi import FastAPI
+from fastapi import FastAPI, Request
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.middleware.gzip import GZipMiddleware
-from starlette.requests import Request
-from starlette.responses import HTMLResponse, JSONResponse
-from starlette.staticfiles import StaticFiles
-from starlette.templating import Jinja2Templates
+from fastapi.responses import HTMLResponse, JSONResponse
+from fastapi.staticfiles import StaticFiles
+from fastapi.templating import Jinja2Templates
 
 from airflow.api_fastapi.auth.tokens import get_signing_key
 from airflow.exceptions import AirflowException
diff --git a/airflow-core/src/airflow/api_fastapi/core_api/routes/public/dags.py b/airflow-core/src/airflow/api_fastapi/core_api/routes/public/dags.py
index b3ca1b7750941..2c425bc2e6c12 100644
--- a/airflow-core/src/airflow/api_fastapi/core_api/routes/public/dags.py
+++ b/airflow-core/src/airflow/api_fastapi/core_api/routes/public/dags.py
@@ -177,7 +177,7 @@ def get_dags(
         [
             status.HTTP_400_BAD_REQUEST,
             status.HTTP_404_NOT_FOUND,
-            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            status.HTTP_422_UNPROCESSABLE_CONTENT,
         ]
     ),
     dependencies=[Depends(requires_access_dag(method="GET"))],
@@ -401,7 +401,7 @@ def unfavorite_dag(dag_id: str, session: SessionDep, user: GetUserDep):
         [
             status.HTTP_400_BAD_REQUEST,
             status.HTTP_404_NOT_FOUND,
-            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            status.HTTP_422_UNPROCESSABLE_CONTENT,
         ]
     ),
     dependencies=[Depends(requires_access_dag(method="DELETE")), Depends(action_logging())],
diff --git a/airflow-core/src/airflow/api_fastapi/execution_api/routes/dag_runs.py b/airflow-core/src/airflow/api_fastapi/execution_api/routes/dag_runs.py
index b3a99bf21a3db..f7d9451c2fc68 100644
--- a/airflow-core/src/airflow/api_fastapi/execution_api/routes/dag_runs.py
+++ b/airflow-core/src/airflow/api_fastapi/execution_api/routes/dag_runs.py
@@ -48,7 +48,7 @@
         status.HTTP_400_BAD_REQUEST: {"description": "DAG has import errors and cannot be triggered"},
         status.HTTP_404_NOT_FOUND: {"description": "DAG not found for the given dag_id"},
         status.HTTP_409_CONFLICT: {"description": "DAG Run already exists for the given dag_id"},
-        status.HTTP_422_UNPROCESSABLE_ENTITY: {"description": "Invalid payload"},
+        status.HTTP_422_UNPROCESSABLE_CONTENT: {"description": "Invalid payload"},
     },
 )
 def trigger_dag_run(
@@ -100,7 +100,7 @@ def trigger_dag_run(
     responses={
         status.HTTP_400_BAD_REQUEST: {"description": "DAG has import errors and cannot be triggered"},
         status.HTTP_404_NOT_FOUND: {"description": "DAG not found for the given dag_id"},
-        status.HTTP_422_UNPROCESSABLE_ENTITY: {"description": "Invalid payload"},
+        status.HTTP_422_UNPROCESSABLE_CONTENT: {"description": "Invalid payload"},
     },
 )
 def clear_dag_run(
diff --git a/airflow-core/src/airflow/api_fastapi/execution_api/routes/task_instances.py b/airflow-core/src/airflow/api_fastapi/execution_api/routes/task_instances.py
index 6dc4101d851ff..fbfcebc54056c 100644
--- a/airflow-core/src/airflow/api_fastapi/execution_api/routes/task_instances.py
+++ b/airflow-core/src/airflow/api_fastapi/execution_api/routes/task_instances.py
@@ -95,7 +95,7 @@
     responses={
         status.HTTP_404_NOT_FOUND: {"description": "Task Instance not found"},
         status.HTTP_409_CONFLICT: {"description": "The TI is already in the requested state"},
-        status.HTTP_422_UNPROCESSABLE_ENTITY: {"description": "Invalid payload for the state transition"},
+        status.HTTP_422_UNPROCESSABLE_CONTENT: {"description": "Invalid payload for the state transition"},
     },
     response_model_exclude_unset=True,
 )
@@ -336,7 +336,7 @@ def _get_upstream_map_indexes(
     responses={
         status.HTTP_404_NOT_FOUND: {"description": "Task Instance not found"},
         status.HTTP_409_CONFLICT: {"description": "The TI is already in the requested state"},
-        status.HTTP_422_UNPROCESSABLE_ENTITY: {"description": "Invalid payload for the state transition"},
+        status.HTTP_422_UNPROCESSABLE_CONTENT: {"description": "Invalid payload for the state transition"},
     },
 )
 def ti_update_state(
@@ -580,7 +580,7 @@ def _create_ti_state_update_query_and_update_state(
     status_code=status.HTTP_204_NO_CONTENT,
     responses={
         status.HTTP_404_NOT_FOUND: {"description": "Task Instance not found"},
-        status.HTTP_422_UNPROCESSABLE_ENTITY: {"description": "Invalid payload for the state transition"},
+        status.HTTP_422_UNPROCESSABLE_CONTENT: {"description": "Invalid payload for the state transition"},
     },
 )
 def ti_skip_downstream(
@@ -627,7 +627,7 @@ def ti_skip_downstream(
         status.HTTP_409_CONFLICT: {
             "description": "The TI attempting to heartbeat should be terminated for the given reason"
         },
-        status.HTTP_422_UNPROCESSABLE_ENTITY: {"description": "Invalid payload for the state transition"},
+        status.HTTP_422_UNPROCESSABLE_CONTENT: {"description": "Invalid payload for the state transition"},
     },
 )
 def ti_heartbeat(
@@ -702,7 +702,7 @@ def ti_heartbeat(
     # TODO: Do we need to use create_openapi_http_exception_doc here?
     responses={
         status.HTTP_404_NOT_FOUND: {"description": "Task Instance not found"},
-        status.HTTP_422_UNPROCESSABLE_ENTITY: {
+        status.HTTP_422_UNPROCESSABLE_CONTENT: {
             "description": "Invalid payload for the setting rendered task instance fields"
         },
     },
@@ -734,7 +734,7 @@ def ti_put_rtif(
     status_code=status.HTTP_204_NO_CONTENT,
     responses={
         status.HTTP_404_NOT_FOUND: {"description": "Task Instance not found"},
-        status.HTTP_422_UNPROCESSABLE_ENTITY: {"description": "Invalid rendered_map_index value"},
+        status.HTTP_422_UNPROCESSABLE_CONTENT: {"description": "Invalid rendered_map_index value"},
     },
 )
 def ti_patch_rendered_map_index(
@@ -749,7 +749,7 @@ def ti_patch_rendered_map_index(
     if not rendered_map_index:
         log.error("rendered_map_index cannot be empty")
         raise HTTPException(
-            status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
             detail="rendered_map_index cannot be empty",
         )
 
diff --git a/providers/amazon/src/airflow/providers/amazon/aws/auth_manager/routes/login.py b/providers/amazon/src/airflow/providers/amazon/aws/auth_manager/routes/login.py
index c3ca59a28c140..e41658f45cc02 100644
--- a/providers/amazon/src/airflow/providers/amazon/aws/auth_manager/routes/login.py
+++ b/providers/amazon/src/airflow/providers/amazon/aws/auth_manager/routes/login.py
@@ -21,9 +21,8 @@
 from typing import Any
 
 import anyio
-from fastapi import HTTPException, Request
-from starlette import status
-from starlette.responses import RedirectResponse
+from fastapi import HTTPException, Request, status
+from fastapi.responses import RedirectResponse
 
 from airflow.api_fastapi.app import (
     AUTH_MANAGER_FASTAPI_APP_PREFIX,
diff --git a/providers/fab/src/airflow/providers/fab/auth_manager/api_fastapi/routes/login.py b/providers/fab/src/airflow/providers/fab/auth_manager/api_fastapi/routes/login.py
index fd728c78a11bd..bfa3c6549cb8d 100644
--- a/providers/fab/src/airflow/providers/fab/auth_manager/api_fastapi/routes/login.py
+++ b/providers/fab/src/airflow/providers/fab/auth_manager/api_fastapi/routes/login.py
@@ -16,9 +16,8 @@
 # under the License.
 from __future__ import annotations
 
-from starlette import status
-from starlette.requests import Request  # noqa: TC002
-from starlette.responses import RedirectResponse
+from fastapi import Request, status
+from fastapi.responses import RedirectResponse
 
 from airflow.api_fastapi.app import get_auth_manager
 from airflow.api_fastapi.auth.managers.base_auth_manager import COOKIE_NAME_JWT_TOKEN
diff --git a/providers/fab/src/airflow/providers/fab/auth_manager/api_fastapi/services/login.py b/providers/fab/src/airflow/providers/fab/auth_manager/api_fastapi/services/login.py
index 7024581137de3..f0bd0667b7a35 100644
--- a/providers/fab/src/airflow/providers/fab/auth_manager/api_fastapi/services/login.py
+++ b/providers/fab/src/airflow/providers/fab/auth_manager/api_fastapi/services/login.py
@@ -18,9 +18,8 @@
 
 from typing import TYPE_CHECKING, cast
 
+from fastapi import HTTPException, status
 from flask_appbuilder.const import AUTH_LDAP
-from starlette import status
-from starlette.exceptions import HTTPException
 
 from airflow.api_fastapi.app import get_auth_manager
 from airflow.configuration import conf
diff --git a/providers/fab/src/airflow/providers/fab/auth_manager/fab_auth_manager.py b/providers/fab/src/airflow/providers/fab/auth_manager/fab_auth_manager.py
index eaf98737394f0..f898c599effcc 100644
--- a/providers/fab/src/airflow/providers/fab/auth_manager/fab_auth_manager.py
+++ b/providers/fab/src/airflow/providers/fab/auth_manager/fab_auth_manager.py
@@ -26,10 +26,10 @@
 import packaging.version
 from connexion import FlaskApi
 from fastapi import FastAPI
+from fastapi.middleware.wsgi import WSGIMiddleware
 from flask import Blueprint, current_app, g
 from sqlalchemy import select
 from sqlalchemy.orm import Session, joinedload
-from starlette.middleware.wsgi import WSGIMiddleware
 
 from airflow import __version__ as airflow_version
 from airflow.api_fastapi.app import AUTH_MANAGER_FASTAPI_APP_PREFIX
diff --git a/providers/fab/tests/unit/fab/auth_manager/api_fastapi/services/test_login.py b/providers/fab/tests/unit/fab/auth_manager/api_fastapi/services/test_login.py
index 570ee4aab1051..3eabb756770c2 100644
--- a/providers/fab/tests/unit/fab/auth_manager/api_fastapi/services/test_login.py
+++ b/providers/fab/tests/unit/fab/auth_manager/api_fastapi/services/test_login.py
@@ -20,8 +20,8 @@
 from unittest.mock import ANY, MagicMock, patch
 
 import pytest
+from fastapi import HTTPException
 from flask_appbuilder.const import AUTH_DB, AUTH_LDAP
-from starlette.exceptions import HTTPException
 
 from airflow.providers.fab.auth_manager.api_fastapi.services.login import FABAuthManagerLogin
 
diff --git a/providers/keycloak/src/airflow/providers/keycloak/auth_manager/routes/login.py b/providers/keycloak/src/airflow/providers/keycloak/auth_manager/routes/login.py
index 247f0c4cbd9f4..9507bed76250c 100644
--- a/providers/keycloak/src/airflow/providers/keycloak/auth_manager/routes/login.py
+++ b/providers/keycloak/src/airflow/providers/keycloak/auth_manager/routes/login.py
@@ -21,7 +21,7 @@
 from typing import Annotated
 
 from fastapi import Depends, Request
-from starlette.responses import HTMLResponse, RedirectResponse
+from fastapi.responses import HTMLResponse, RedirectResponse
 
 from airflow.api_fastapi.app import get_auth_manager
 from airflow.api_fastapi.auth.managers.base_auth_manager import COOKIE_NAME_JWT_TOKEN
diff --git a/providers/keycloak/src/airflow/providers/keycloak/auth_manager/routes/token.py b/providers/keycloak/src/airflow/providers/keycloak/auth_manager/routes/token.py
index b3bb1bc1ff331..a8338ed639760 100644
--- a/providers/keycloak/src/airflow/providers/keycloak/auth_manager/routes/token.py
+++ b/providers/keycloak/src/airflow/providers/keycloak/auth_manager/routes/token.py
@@ -19,7 +19,7 @@
 
 import logging
 
-from starlette import status
+from fastapi import status
 
 from airflow.api_fastapi.common.router import AirflowRouter
 from airflow.api_fastapi.core_api.openapi.exceptions import create_openapi_http_exception_doc
diff --git a/providers/keycloak/src/airflow/providers/keycloak/auth_manager/services/token.py b/providers/keycloak/src/airflow/providers/keycloak/auth_manager/services/token.py
index 754966d7520ee..448414524ef3f 100644
--- a/providers/keycloak/src/airflow/providers/keycloak/auth_manager/services/token.py
+++ b/providers/keycloak/src/airflow/providers/keycloak/auth_manager/services/token.py
@@ -17,9 +17,8 @@
 
 from __future__ import annotations
 
-from fastapi import HTTPException
+from fastapi import HTTPException, status
 from keycloak import KeycloakAuthenticationError
-from starlette import status
 
 from airflow.api_fastapi.app import get_auth_manager
 from airflow.configuration import conf