diff --git a/dev/devicelab/manifest.yaml b/dev/devicelab/manifest.yaml
index cccac3fc86c..02ea757e7cf 100644
--- a/dev/devicelab/manifest.yaml
+++ b/dev/devicelab/manifest.yaml
@@ -140,12 +140,14 @@ tasks:
       Checks that platform channels work on iOS.
     stage: devicelab_ios
     required_agent_capabilities: ["has-ios-device"]
+    flaky: true
 
   platform_channel_sample_test_ios:
     description: >
       Runs a driver test on the Platform Channel sample app on iOS.
     stage: devicelab_ios
     required_agent_capabilities: ["has-ios-device"]
+    flaky: true
 
   complex_layout_scroll_perf_ios__timeline_summary:
     description: >
@@ -153,6 +155,7 @@ tasks:
       iOS.
     stage: devicelab_ios
     required_agent_capabilities: ["has-ios-device"]
+    flaky: true
 
 #  flutter_gallery_ios__start_up:
 #    description: >
@@ -181,6 +184,7 @@ tasks:
       Measures the IPA size of a basic material app.
     stage: devicelab_ios
     required_agent_capabilities: ["has-ios-device"]
+    flaky: true
 
 #  microbenchmarks_ios:
 #    description: >
@@ -202,6 +206,7 @@ tasks:
       Runs end-to-end Flutter tests on iOS.
     stage: devicelab_ios
     required_agent_capabilities: ["has-ios-device"]
+    flaky: true
 
   ios_sample_catalog_generator:
     description: >