diff --git a/Helper/Data.php b/Helper/Data.php
index 22a716f..8abb5dd 100644
--- a/Helper/Data.php
+++ b/Helper/Data.php
@@ -18,6 +18,7 @@ public function getConfigValue()
         return [
             'show_frontend_as' => $this->scopeConfig->getValue('admin/disable_frontend/show_frontend_as', ScopeInterface::SCOPE_WEBSITE),
             'redirect_to' => $this->scopeConfig->getValue('admin/disable_frontend/redirect_to', ScopeInterface::SCOPE_WEBSITE),
+            'allow_checkout' => $this->scopeConfig->getValue('admin/disable_frontend/allow_checkout', ScopeInterface::SCOPE_WEBSITE),
         ];
     }
 
diff --git a/Observer/DisableFrontend.php b/Observer/DisableFrontend.php
index 90fc429..e34aba1 100644
--- a/Observer/DisableFrontend.php
+++ b/Observer/DisableFrontend.php
@@ -65,16 +65,19 @@ public function __construct(
      */
     public function execute(Observer $observer)
     {
-        $controller = $observer->getControllerAction();
-        $destination = $controller->getResponse();
         $configValues = $this->disableFrontendHelper->getConfigValue();
 
-        // Allow requests to the cart to get through.
-        $request = $observer->getRequest();
-        if ($request->getRouteName() === 'cart') {
-            return;
+        if ($configValues['allow_checkout']) {
+            // Allow requests to the cart and checkout to get through.
+            $request = $observer->getRequest();
+            if ($request->getRouteName() == 'cart' || $request->getRouteName() == 'checkout') {
+                return;
+            }
         }
 
+        $controller = $observer->getControllerAction();
+        $destination = $controller->getResponse();
+
         // Shows a blank page if all else fails.
         $this->_actionFlag->set('', Action::FLAG_NO_DISPATCH, true);
 
diff --git a/etc/adminhtml/system.xml b/etc/adminhtml/system.xml
index 24c13af..9a6994f 100644
--- a/etc/adminhtml/system.xml
+++ b/etc/adminhtml/system.xml
@@ -12,6 +12,9 @@
                     <label>Redirect to</label>
                     <validate>validate-url</validate>
                 </field>
+                <field id="allow_checkout" translate="label" type="checkbox" sortOrder="3" showInDefault="1" showInWebsite="0" showInStore="0">
+                    <label>Allow checkout routes</label>
+                </field>
             </group>
         </section>
     </system>