diff --git a/homeassistant/components/honeywell/__init__.py b/homeassistant/components/honeywell/__init__.py
index 8349c383e9f..5a4d6374304 100644
--- a/homeassistant/components/honeywell/__init__.py
+++ b/homeassistant/components/honeywell/__init__.py
@@ -2,6 +2,7 @@
 
 from dataclasses import dataclass
 
+from aiohttp.client_exceptions import ClientConnectionError
 import aiosomecomfort
 
 from homeassistant.config_entries import ConfigEntry
@@ -68,6 +69,7 @@ async def async_setup_entry(hass: HomeAssistant, config_entry: ConfigEntry) -> b
         aiosomecomfort.device.ConnectionError,
         aiosomecomfort.device.ConnectionTimeout,
         aiosomecomfort.device.SomeComfortError,
+        ClientConnectionError,
         TimeoutError,
     ) as ex:
         raise ConfigEntryNotReady(
diff --git a/homeassistant/components/honeywell/config_flow.py b/homeassistant/components/honeywell/config_flow.py
index 809fa45449b..7f298aee632 100644
--- a/homeassistant/components/honeywell/config_flow.py
+++ b/homeassistant/components/honeywell/config_flow.py
@@ -54,6 +54,7 @@ class HoneywellConfigFlow(ConfigFlow, domain=DOMAIN):
         """Confirm re-authentication with Honeywell."""
         errors: dict[str, str] = {}
         assert self.entry is not None
+
         if user_input:
             try:
                 await self.is_valid(
@@ -63,14 +64,12 @@ class HoneywellConfigFlow(ConfigFlow, domain=DOMAIN):
 
             except aiosomecomfort.AuthError:
                 errors["base"] = "invalid_auth"
-
             except (
                 aiosomecomfort.ConnectionError,
                 aiosomecomfort.ConnectionTimeout,
                 TimeoutError,
             ):
                 errors["base"] = "cannot_connect"
-
             else:
                 return self.async_update_reload_and_abort(
                     self.entry,
@@ -83,7 +82,8 @@ class HoneywellConfigFlow(ConfigFlow, domain=DOMAIN):
         return self.async_show_form(
             step_id="reauth_confirm",
             data_schema=self.add_suggested_values_to_schema(
-                REAUTH_SCHEMA, self.entry.data
+                REAUTH_SCHEMA,
+                self.entry.data,
             ),
             errors=errors,
             description_placeholders={"name": "Honeywell"},
@@ -91,7 +91,7 @@ class HoneywellConfigFlow(ConfigFlow, domain=DOMAIN):
 
     async def async_step_user(self, user_input=None) -> ConfigFlowResult:
         """Create config entry. Show the setup form to the user."""
-        errors = {}
+        errors: dict[str, str] = {}
         if user_input is not None:
             try:
                 await self.is_valid(**user_input)
@@ -103,7 +103,6 @@ class HoneywellConfigFlow(ConfigFlow, domain=DOMAIN):
                 TimeoutError,
             ):
                 errors["base"] = "cannot_connect"
-
             if not errors:
                 return self.async_create_entry(
                     title=DOMAIN,
@@ -115,7 +114,9 @@ class HoneywellConfigFlow(ConfigFlow, domain=DOMAIN):
             vol.Required(CONF_PASSWORD): str,
         }
         return self.async_show_form(
-            step_id="user", data_schema=vol.Schema(data_schema), errors=errors
+            step_id="user",
+            data_schema=vol.Schema(data_schema),
+            errors=errors,
         )
 
     async def is_valid(self, **kwargs) -> bool:
diff --git a/tests/components/honeywell/test_init.py b/tests/components/honeywell/test_init.py
index a77c0aaed7e..cdd767f019d 100644
--- a/tests/components/honeywell/test_init.py
+++ b/tests/components/honeywell/test_init.py
@@ -2,6 +2,7 @@
 
 from unittest.mock import MagicMock, create_autospec, patch
 
+from aiohttp.client_exceptions import ClientConnectionError
 import aiosomecomfort
 import pytest
 
@@ -120,11 +121,23 @@ async def test_login_error(
     assert config_entry.state is ConfigEntryState.SETUP_ERROR
 
 
+@pytest.mark.parametrize(
+    "the_error",
+    [
+        aiosomecomfort.ConnectionError,
+        aiosomecomfort.device.ConnectionTimeout,
+        aiosomecomfort.device.SomeComfortError,
+        ClientConnectionError,
+    ],
+)
 async def test_connection_error(
-    hass: HomeAssistant, client: MagicMock, config_entry: MagicMock
+    hass: HomeAssistant,
+    client: MagicMock,
+    config_entry: MagicMock,
+    the_error: Exception,
 ) -> None:
     """Test Connection errors from API."""
-    client.login.side_effect = aiosomecomfort.ConnectionError
+    client.login.side_effect = the_error
     await init_integration(hass, config_entry)
     assert config_entry.state is ConfigEntryState.SETUP_RETRY