diff --git a/vllm/v1/core/sched/scheduler.py b/vllm/v1/core/sched/scheduler.py
index 7fc4776b0261..a09d1c36169d 100644
--- a/vllm/v1/core/sched/scheduler.py
+++ b/vllm/v1/core/sched/scheduler.py
@@ -1287,5 +1287,7 @@ def _update_from_kv_xfer_finished(self,
             logger.debug("Finished recving KV transfer for request %s", req_id)
             self.finished_recving_kv_req_ids.add(req_id)
         for req_id in (kv_connector_output.finished_sending or ()):
+            if req_id not in self.requests:
+                continue
             logger.debug("Finished sending KV transfer for request %s", req_id)
             self._free_blocks(self.requests[req_id])