diff --git a/api/integrations/launch_darkly/constants.py b/api/integrations/launch_darkly/constants.py
index 21085564bf07..73547d7e378e 100644
--- a/api/integrations/launch_darkly/constants.py
+++ b/api/integrations/launch_darkly/constants.py
@@ -9,6 +9,7 @@
 
 LAUNCH_DARKLY_IMPORTED_TAG_COLOR = "#3d4db6"
 LAUNCH_DARKLY_IMPORTED_DEFAULT_TAG_LABEL = "Imported"
+LAUNCH_DARKLY_IMPORTED_DEPRECATED_TAG_LABEL = "Deprecated"
 
 BACKOFF_MAX_RETRIES = 5
 BACKOFF_DEFAULT_RETRY_AFTER_SECONDS = 10
diff --git a/api/integrations/launch_darkly/models.py b/api/integrations/launch_darkly/models.py
index d59034eb2799..f80d30ca73cf 100644
--- a/api/integrations/launch_darkly/models.py
+++ b/api/integrations/launch_darkly/models.py
@@ -17,6 +17,7 @@
 class LaunchDarklyImportStatus(TypedDict):
     requested_environment_count: int
     requested_flag_count: int
+    deprecated_flag_count: NotRequired[int]
     result: NotRequired[LaunchDarklyImportResult]
     error_messages: list[str]
 
diff --git a/api/integrations/launch_darkly/serializers.py b/api/integrations/launch_darkly/serializers.py
index c9f1645b876d..9986db3a6f2a 100644
--- a/api/integrations/launch_darkly/serializers.py
+++ b/api/integrations/launch_darkly/serializers.py
@@ -11,6 +11,7 @@
 class LaunchDarklyImportRequestStatusSerializer(serializers.Serializer):  # type: ignore[type-arg]
     requested_environment_count = serializers.IntegerField(read_only=True)
     requested_flag_count = serializers.IntegerField(read_only=True)
+    deprecated_flag_count = serializers.IntegerField(read_only=True, default=0)
     result = serializers.ChoiceField(
         get_args(LaunchDarklyImportResult),
         read_only=True,
diff --git a/api/integrations/launch_darkly/services.py b/api/integrations/launch_darkly/services.py
index 84ca823f3594..8357e2930465 100644
--- a/api/integrations/launch_darkly/services.py
+++ b/api/integrations/launch_darkly/services.py
@@ -28,6 +28,7 @@
 from integrations.launch_darkly.client import LaunchDarklyClient
 from integrations.launch_darkly.constants import (
     LAUNCH_DARKLY_IMPORTED_DEFAULT_TAG_LABEL,
+    LAUNCH_DARKLY_IMPORTED_DEPRECATED_TAG_LABEL,
     LAUNCH_DARKLY_IMPORTED_TAG_COLOR,
 )
 from integrations.launch_darkly.exceptions import LaunchDarklyRateLimitError
@@ -124,7 +125,11 @@ def _create_tags_from_ld(
 ) -> dict[str, Tag]:
     tags_by_ld_tag = {}
 
-    for ld_tag in (*ld_tags, LAUNCH_DARKLY_IMPORTED_DEFAULT_TAG_LABEL):
+    for ld_tag in (
+        *ld_tags,
+        LAUNCH_DARKLY_IMPORTED_DEFAULT_TAG_LABEL,
+        LAUNCH_DARKLY_IMPORTED_DEPRECATED_TAG_LABEL,
+    ):
         tags_by_ld_tag[ld_tag], _ = Tag.objects.update_or_create(
             label=ld_tag,
             project_id=project_id,
@@ -903,6 +908,8 @@ def _create_feature_from_ld(
         tags_by_ld_tag[LAUNCH_DARKLY_IMPORTED_DEFAULT_TAG_LABEL],
         *(tags_by_ld_tag[ld_tag] for ld_tag in ld_flag["tags"]),
     ]
+    if ld_flag["deprecated"]:
+        tags.append(tags_by_ld_tag[LAUNCH_DARKLY_IMPORTED_DEPRECATED_TAG_LABEL])
 
     feature, _ = Feature.objects.update_or_create(
         project_id=project_id,
@@ -911,7 +918,7 @@ def _create_feature_from_ld(
             "description": ld_flag.get("description"),
             "default_enabled": False,
             "type": feature_type,
-            "is_archived": ld_flag["archived"],
+            "is_archived": ld_flag["archived"] or ld_flag["deprecated"],
         },
     )
     feature.tags.set(tags)
@@ -1169,3 +1176,8 @@ def process_import_request(
             segments_by_ld_key=segments_by_ld_key,
             project_id=import_request.project_id,
         )
+
+        # Count deprecated flags for reporting
+        import_request.status["deprecated_flag_count"] = sum(
+            1 for ld_flag in ld_flags if ld_flag["deprecated"]
+        )
diff --git a/api/tests/unit/integrations/launch_darkly/client_responses/get_flags.json b/api/tests/unit/integrations/launch_darkly/client_responses/get_flags.json
index 22245da752c9..19184591949a 100644
--- a/api/tests/unit/integrations/launch_darkly/client_responses/get_flags.json
+++ b/api/tests/unit/integrations/launch_darkly/client_responses/get_flags.json
@@ -35,6 +35,7 @@
       "offVariation": 1,
       "onVariation": 0
     },
+    "deprecated": true,
     "description": "",
     "environments": {
       "production": {
@@ -162,6 +163,7 @@
       "offVariation": 1,
       "onVariation": 0
     },
+    "deprecated": false,
     "description": "",
     "environments": {
       "production": {
@@ -289,6 +291,7 @@
       "offVariation": 1,
       "onVariation": 0
     },
+    "deprecated": false,
     "description": "",
     "environments": {
       "production": {
@@ -420,6 +423,7 @@
       "offVariation": 1,
       "onVariation": 0
     },
+    "deprecated": false,
     "description": "",
     "environments": {
       "production": {
@@ -558,6 +562,7 @@
       "offVariation": 1,
       "onVariation": 0
     },
+    "deprecated": false,
     "description": "",
     "environments": {
       "production": {
diff --git a/api/tests/unit/integrations/launch_darkly/snapshots/test_process_import_request__large_segments__correctly_imported__import_request_status.json b/api/tests/unit/integrations/launch_darkly/snapshots/test_process_import_request__large_segments__correctly_imported__import_request_status.json
index 4c7e66bb9417..5c8dd5470a34 100644
--- a/api/tests/unit/integrations/launch_darkly/snapshots/test_process_import_request__large_segments__correctly_imported__import_request_status.json
+++ b/api/tests/unit/integrations/launch_darkly/snapshots/test_process_import_request__large_segments__correctly_imported__import_request_status.json
@@ -1,4 +1,5 @@
 {
+  "deprecated_flag_count": 1,
   "error_messages": [
     "Targeting key 'user-...63a49' exceeds the limit of 1000 characters, skipping for segment 'Large User List (Override for test)'",
     "Segment condition value '.*1a6...\\.com' for property 'email' exceeds the limit of 1000 characters, skipping for segment 'Large Dynamic List (Override for test)'",
diff --git a/api/tests/unit/integrations/launch_darkly/test_services.py b/api/tests/unit/integrations/launch_darkly/test_services.py
index 46385c887f7d..2482af6c13a7 100644
--- a/api/tests/unit/integrations/launch_darkly/test_services.py
+++ b/api/tests/unit/integrations/launch_darkly/test_services.py
@@ -143,11 +143,13 @@ def test_process_import_request__success__expected_status(  # type: ignore[no-un
         ("testtag", "#3d4db6"),
         ("testtag2", "#3d4db6"),
         ("Imported", "#3d4db6"),
+        ("Deprecated", "#3d4db6"),
     }
     assert set(
         Feature.objects.filter(project=project).values_list("name", "tags__label")
     ) == {
         ("flag1", "Imported"),
+        ("flag1", "Deprecated"),
         ("flag2_value", "Imported"),
         ("flag3_multivalue", "Imported"),
         ("flag4_multivalue", "Imported"),
@@ -160,6 +162,10 @@ def test_process_import_request__success__expected_status(  # type: ignore[no-un
         ("TEST_COMBINED_TARGET", "Imported"),
     }
 
+    # Deprecated flags are archived.
+    deprecated_feature = Feature.objects.get(project=project, name="flag1")
+    assert deprecated_feature.is_archived is True
+
     # Standard feature states have expected values.
     boolean_standard_feature = Feature.objects.get(project=project, name="flag1")
     boolean_standard_feature_states_by_env_name = {
diff --git a/api/tests/unit/integrations/launch_darkly/test_views.py b/api/tests/unit/integrations/launch_darkly/test_views.py
index 8c661e8ae252..e901a0332e56 100644
--- a/api/tests/unit/integrations/launch_darkly/test_views.py
+++ b/api/tests/unit/integrations/launch_darkly/test_views.py
@@ -49,6 +49,7 @@ def test_launch_darkly_import_request_view__list__return_expected(
             "id": import_request.id,
             "project": project.id,
             "status": {
+                "deprecated_flag_count": 0,
                 "error_messages": [],
                 "requested_environment_count": 2,
                 "requested_flag_count": 9,
@@ -92,6 +93,7 @@ def test_launch_darkly_import_request_view__create__return_expected(
         "id": created_import_request.id,
         "project": project.id,
         "status": {
+            "deprecated_flag_count": 0,
             "error_messages": [],
             "requested_environment_count": 2,
             "requested_flag_count": 9,
diff --git a/docs/docs/administration-and-security/data-management/import-from-launchdarkly.md b/docs/docs/administration-and-security/data-management/import-from-launchdarkly.md
index 770eb5bfc4f1..3c0bc71bb0bf 100644
--- a/docs/docs/administration-and-security/data-management/import-from-launchdarkly.md
+++ b/docs/docs/administration-and-security/data-management/import-from-launchdarkly.md
@@ -65,3 +65,9 @@ Multivariate LaunchDarkly flags will be imported into Flagsmith as MultiVariate
 Multivariate values will be taken from the `variations` field of within LaunchDarkly.
 
 Values set to serve when targeting is off will be imported as control values.
+
+#### Archived and deprecated flags
+
+Archived flags in LaunchDarkly are imported as archived flags in Flagsmith.
+
+Deprecated flags in LaunchDarkly are also imported as archived flags in Flagsmith. They receive a "Deprecated" tag to distinguish them from flags that were archived in LaunchDarkly.
diff --git a/frontend/common/types/responses.ts b/frontend/common/types/responses.ts
index 7f3f5236c767..b5f2d7e577ab 100644
--- a/frontend/common/types/responses.ts
+++ b/frontend/common/types/responses.ts
@@ -186,8 +186,9 @@ export type LaunchDarklyProjectImport = {
   status: {
     requested_environment_count: number
     requested_flag_count: number
+    deprecated_flag_count?: number
     result: string | null
-    error_message: string | null
+    error_messages: string[]
   }
   project: number
 }
diff --git a/frontend/web/components/import-export/ImportPage.tsx b/frontend/web/components/import-export/ImportPage.tsx
index 9d8311270deb..9dcc40952016 100644
--- a/frontend/web/components/import-export/ImportPage.tsx
+++ b/frontend/web/components/import-export/ImportPage.tsx
@@ -27,51 +27,43 @@ const ImportPage: FC<ImportPageType> = ({ projectId, projectName }) => {
   const [LDKey, setLDKey] = useState<string>('')
   const [importId, setImportId] = useState<number>()
   const [isLoading, setIsLoading] = useState<boolean>(false)
-  const [isAppLoading, setAppIsLoading] = useState<boolean>(false)
   const [projects, setProjects] = useState<{ key: string; name: string }[]>([])
   const [createLaunchDarklyProjectImport, { data, isSuccess }] =
     useCreateLaunchDarklyProjectImportMutation()
 
-  const {
-    data: status,
-    isSuccess: statusLoaded,
-    isUninitialized,
-    refetch,
-  } = useGetLaunchDarklyProjectImportQuery(
+  const { data: status } = useGetLaunchDarklyProjectImportQuery(
     {
       import_id: `${importId}`,
       project_id: projectId,
     },
-    { skip: !importId },
+    {
+      pollingInterval: importId ? 1000 : 0,
+      skip: !importId,
+    },
   )
 
   useEffect(() => {
-    const checkImportStatus = async () => {
-      setAppIsLoading(true)
-      const intervalId = setInterval(async () => {
-        await refetch()
-
-        if (statusLoaded && status && status.status.result === 'success') {
-          clearInterval(intervalId)
-          setAppIsLoading(false)
-          window.location.reload()
-        }
-      }, 1000)
-    }
-
-    if (statusLoaded) {
-      checkImportStatus()
+    if (isSuccess && data?.id) {
+      setImportId(data.id)
     }
-  }, [statusLoaded, status, refetch])
+  }, [isSuccess, data])
 
   useEffect(() => {
-    if (isSuccess && data?.id) {
-      setImportId(data.id)
-      if (!isUninitialized) {
-        refetch()
+    if (status?.status?.result === 'success') {
+      const count = status.status.requested_flag_count
+      const deprecated = status.status.deprecated_flag_count ?? 0
+      let message = `Imported ${count} flag${count !== 1 ? 's' : ''} from LaunchDarkly.`
+      if (deprecated > 0) {
+        message += ` ${deprecated} deprecated flag${deprecated !== 1 ? 's were' : ' was'} archived.`
       }
+      toast(message, 'success', 0)
+      history.push(`/project/${projectId}`)
+    } else if (status?.status?.result === 'failure') {
+      const errors = status.status.error_messages.join('; ')
+      toast(`Importing from LaunchDarkly failed: ${errors}`, 'danger', 0)
+      setImportId(undefined)
     }
-  }, [isSuccess, data, refetch, isUninitialized])
+  }, [status, projectId, history])
 
   const getProjectList = (LDKey: string) => {
     setIsLoading(true)
@@ -218,11 +210,12 @@ const ImportPage: FC<ImportPageType> = ({ projectId, projectName }) => {
     </>
   )
 
+  const isImporting = !!importId && status?.status?.result !== 'success'
+
   return (
     <>
-      {isAppLoading && (
+      {isImporting && (
         <div className='overlay'>
-          <div className='title'>Importing Project</div>
           <AppLoader />
         </div>
       )}
diff --git a/frontend/web/project/toast.tsx b/frontend/web/project/toast.tsx
index 48d22712b023..9e7a08da56e6 100644
--- a/frontend/web/project/toast.tsx
+++ b/frontend/web/project/toast.tsx
@@ -68,6 +68,7 @@ const Message: FC<MessageProps> = ({
 }) => {
   const theme = _theme || 'success'
   useEffect(() => {
+    if (!expiry) return
     const timeout = setTimeout(remove, expiry)
     return () => clearTimeout(timeout)
   }, [remove, expiry])