diff --git a/includes/class-wc-emails.php b/includes/class-wc-emails.php
index f6722105459..580b6c1a213 100644
--- a/includes/class-wc-emails.php
+++ b/includes/class-wc-emails.php
@@ -84,17 +84,38 @@ class WC_Emails {
 		) );
 
 		foreach ( $email_actions as $action ) {
-			add_action( $action, array( __CLASS__, 'send_transactional_email' ), 10, 10 );
+			add_action( $action, array( __CLASS__, 'queue_transactional_email' ), 10, 10 );
 		}
 	}
 
+	/**
+	 * Queue transactional email via cron so it's not sent in current request.
+	 */
+	public static function queue_transactional_email() {
+		wp_schedule_single_event( time() + 10, 'send_queued_transactional_email', array(
+			'filter' => current_filter(),
+			'args'   => func_get_args(),
+		) );
+	}
+
 	/**
 	 * Init the mailer instance and call the notifications for the current filter.
+	 *
 	 * @internal param array $args (default: array())
 	 */
-	public static function send_transactional_email() {
+	public static function send_queued_transactional_email( $filter = '', $args = array() ) {
+		self::instance(); // Init self so emails exist.
+		do_action_ref_array( $filter . '_notification', $args );
+	}
+
+	/**
+	 * Init the mailer instance and call the notifications for the current filter.
+	 *
+	 * @internal param array $args (default: array())
+	 */
+	public static function send_transactional_email( $args = array() ) {
 		$args = func_get_args();
-		self::instance();
+		self::instance(); // Init self so emails exist.
 		do_action_ref_array( current_filter() . '_notification', $args );
 	}