diff --git a/src/company_cmd.cpp b/src/company_cmd.cpp
index cb9addd95d..35557d753c 100644
--- a/src/company_cmd.cpp
+++ b/src/company_cmd.cpp
@@ -916,6 +916,8 @@ CommandCost CmdCompanyCtrl(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
 
 			if (StoryPage::GetNumItems() == 0 || Goal::GetNumItems() == 0) InvalidateWindowData(WC_MAIN_TOOLBAR, 0);
 
+			InvalidateWindowClassesData(WC_DEPARTURES_BOARD, 0);
+
 			extern void CheckCaches(bool force_check, std::function<void(const char *)> log);
 			CheckCaches(true, nullptr);
 			break;
diff --git a/src/departures_gui.cpp b/src/departures_gui.cpp
index 6765f4f928..c3f10f9e09 100644
--- a/src/departures_gui.cpp
+++ b/src/departures_gui.cpp
@@ -90,6 +90,7 @@ protected:
 	StationID station;         ///< The station whose departures we're showing.
 	DepartureList *departures; ///< The current list of departures from this station.
 	DepartureList *arrivals;   ///< The current list of arrivals from this station.
+	bool departures_invalid;   ///< The departures and arrivals list are currently invalid.
 	uint entry_height;         ///< The height of an entry in the departures list.
 	uint tick_count;           ///< The number of ticks that have elapsed since the window was created. Used for scrolling text.
 	int calc_tick_countdown;   ///< The number of ticks to wait until recomputing the departure list. Signed in case it goes below zero.
@@ -213,6 +214,7 @@ public:
 		station(window_number),
 		departures(new DepartureList()),
 		arrivals(new DepartureList()),
+		departures_invalid(true),
 		entry_height(1 + FONT_HEIGHT_NORMAL + 1 + (_settings_client.gui.departure_larger_font ? FONT_HEIGHT_NORMAL : FONT_HEIGHT_SMALL) + 1 + 1),
 		tick_count(0),
 		calc_tick_countdown(0),
@@ -356,6 +358,8 @@ public:
 				break;
 
 			case WID_DB_LIST: {  // Matrix to show departures
+				if (this->departures_invalid) return;
+
 				/* We need to find the departure corresponding to where the user clicked. */
 				uint32 id_v = (pt.y - this->GetWidget<NWidgetBase>(WID_DB_LIST)->pos_y) / this->entry_height;
 
@@ -442,6 +446,7 @@ public:
 			bool show_freight = _settings_client.gui.departure_only_passengers ? false : this->show_freight;
 			this->departures = (this->departure_types[0] ? MakeDepartureList(this->station, this->vehicles, D_DEPARTURE, Twaypoint || this->departure_types[2], show_pax, show_freight) : new DepartureList());
 			this->arrivals   = (this->departure_types[1] && !_settings_client.gui.departure_show_both ? MakeDepartureList(this->station, this->vehicles, D_ARRIVAL, false, show_pax, show_freight) : new DepartureList());
+			this->departures_invalid = false;
 			this->SetWidgetDirty(WID_DB_LIST);
 		}
 
@@ -463,6 +468,13 @@ public:
 		}
 	}
 
+	virtual void OnRealtimeTick(uint delta_ms) override
+	{
+		if (_pause_mode != PM_UNPAUSED && this->calc_tick_countdown <= 0) {
+			this->OnGameTick();
+		}
+	}
+
 	virtual void OnPaint() override
 	{
 		if (Twaypoint || _settings_client.gui.departure_show_both) {
@@ -500,6 +512,7 @@ public:
 	void OnInvalidateData(int data = 0, bool gui_scope = true) override
 	{
 		this->RefreshVehicleList();
+		this->departures_invalid = true;
 	}
 };
 
diff --git a/src/economy.cpp b/src/economy.cpp
index fe4f31d643..2b8fb59f7b 100644
--- a/src/economy.cpp
+++ b/src/economy.cpp
@@ -2225,6 +2225,7 @@ static void DoAcquireCompany(Company *c)
 	InvalidateWindowClassesData(WC_SHIPS_LIST, 0);
 	InvalidateWindowClassesData(WC_ROADVEH_LIST, 0);
 	InvalidateWindowClassesData(WC_AIRCRAFT_LIST, 0);
+	InvalidateWindowClassesData(WC_DEPARTURES_BOARD, 0);
 
 	delete c;
 
diff --git a/src/order_cmd.cpp b/src/order_cmd.cpp
index 2233d794e2..cd1e065f78 100644
--- a/src/order_cmd.cpp
+++ b/src/order_cmd.cpp
@@ -2441,6 +2441,7 @@ void DeleteVehicleOrders(Vehicle *v, bool keep_orderlist, bool reset_order_indic
 		v->orders.list = nullptr;
 	} else {
 		DeleteWindowById(GetWindowClassForVehicleType(v->type), VehicleListIdentifier(VL_SHARED_ORDERS, v->type, v->owner, v->index).Pack());
+		InvalidateWindowClassesData(WC_DEPARTURES_BOARD, 0);
 		if (v->orders.list != nullptr) {
 			/* Remove the orders */
 			v->orders.list->FreeChain(keep_orderlist);
diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
index 52aecf3fc4..1d4d1282cf 100644
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -1593,6 +1593,7 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 			InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
 			InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
 			InvalidateWindowClassesData(WC_TRACE_RESTRICT_SLOTS, 0);
+			InvalidateWindowClassesData(WC_DEPARTURES_BOARD, 0);
 		}
 	} else {
 		/* We don't want to execute what we're just tried. */
@@ -1684,6 +1685,7 @@ CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint3
 			InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
 			InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
 			InvalidateWindowClassesData(WC_TRACE_RESTRICT_SLOTS, 0);
+			InvalidateWindowClassesData(WC_DEPARTURES_BOARD, 0);
 		}
 
 		/* Actually delete the sold 'goods' */
diff --git a/src/train_gui.cpp b/src/train_gui.cpp
index 9ac88579ce..a1b15f2c54 100644
--- a/src/train_gui.cpp
+++ b/src/train_gui.cpp
@@ -49,6 +49,7 @@ void CcBuildWagon(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p
 		DoCommandP(0, _new_vehicle_id, found->index, CMD_MOVE_RAIL_VEHICLE);
 		InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
 		InvalidateWindowClassesData(WC_TRACE_RESTRICT_SLOTS, 0);
+		InvalidateWindowClassesData(WC_DEPARTURES_BOARD, 0);
 	}
 }
 
diff --git a/src/vehicle.cpp b/src/vehicle.cpp
index 7260feab26..878a29bea7 100644
--- a/src/vehicle.cpp
+++ b/src/vehicle.cpp
@@ -350,6 +350,7 @@ uint Vehicle::Crash(bool flooded)
 	SetWindowWidgetDirty(WC_VEHICLE_VIEW, this->index, WID_VV_START_STOP);
 	SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
 	SetWindowDirty(WC_VEHICLE_DEPOT, this->tile);
+	InvalidateWindowClassesData(WC_DEPARTURES_BOARD, 0);
 
 	delete this->cargo_payment;
 	assert(this->cargo_payment == nullptr); // cleared by ~CargoPayment