diff --git a/airflow-core/src/airflow/ui/src/components/Graph/useGraphLayout.ts b/airflow-core/src/airflow/ui/src/components/Graph/useGraphLayout.ts
index 9c74318db75f2..d09455e08b0e6 100644
--- a/airflow-core/src/airflow/ui/src/components/Graph/useGraphLayout.ts
+++ b/airflow-core/src/airflow/ui/src/components/Graph/useGraphLayout.ts
@@ -167,6 +167,8 @@ const generateElkGraph = ({
     }
 
     if (!Boolean(isOpen) && node.children !== undefined) {
+      const seenEdges = new Set<string>();
+
       filteredEdges = filteredEdges
         // Filter out internal group edges
         .filter((fe) => !(childIds.includes(fe.source_id) && childIds.includes(fe.target_id)))
@@ -175,7 +177,18 @@ const generateElkGraph = ({
           ...fe,
           source_id: childIds.includes(fe.source_id) ? node.id : fe.source_id,
           target_id: childIds.includes(fe.target_id) ? node.id : fe.target_id,
-        }));
+        }))
+        // Deduplicate edges based on source_id and target_id composite
+        .filter((fe) => {
+          const edgeKey = `${fe.source_id}-${fe.target_id}`;
+
+          if (seenEdges.has(edgeKey)) {
+            return false;
+          }
+          seenEdges.add(edgeKey);
+
+          return true;
+        });
       closedGroupIds.push(node.id);
     }