diff --git a/gen/flights/traveltime.py b/gen/flights/traveltime.py
index a4690f1a..1b1c5622 100644
--- a/gen/flights/traveltime.py
+++ b/gen/flights/traveltime.py
@@ -202,7 +202,11 @@ class TotEstimator:
     @staticmethod
     def estimate_startup(flight: Flight) -> int:
         if flight.start_type == "Cold":
-            return 10 * 60
+            if flight.client_count:
+                return 10 * 60
+            else:
+                # The AI doesn't seem to have a real startup procedure.
+                return 2 * 60
         return 0
 
     @staticmethod