diff --git a/.changeset/honest-seas-raise.md b/.changeset/honest-seas-raise.md
new file mode 100644
index 000000000000..4d9725290329
--- /dev/null
+++ b/.changeset/honest-seas-raise.md
@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Fixes a bug where the custom status code wasn't correctly computed in the dev server
diff --git a/packages/astro/src/core/redirects/helpers.ts b/packages/astro/src/core/redirects/helpers.ts
index 1faab7c4ecfe..e171aebe6624 100644
--- a/packages/astro/src/core/redirects/helpers.ts
+++ b/packages/astro/src/core/redirects/helpers.ts
@@ -36,8 +36,8 @@ export function redirectRouteGenerate(redirectRoute: RouteData, data: Params): s
 
 export function redirectRouteStatus(redirectRoute: RouteData, method = 'GET'): ValidRedirectStatus {
 	const routeData = redirectRoute.redirectRoute;
-	if (typeof routeData?.redirect === 'object') {
-		return routeData.redirect.status;
+	if (routeData && typeof redirectRoute.redirect === 'object') {
+		return redirectRoute.redirect.status;
 	} else if (method !== 'GET') {
 		return 308;
 	}
diff --git a/packages/astro/src/core/routing/manifest/create.ts b/packages/astro/src/core/routing/manifest/create.ts
index 247a01ad1896..fcb31c1cc9b8 100644
--- a/packages/astro/src/core/routing/manifest/create.ts
+++ b/packages/astro/src/core/routing/manifest/create.ts
@@ -477,7 +477,13 @@ export function createRouteManifest(
 			pathname: pathname || void 0,
 			prerender: false,
 			redirect: to,
-			redirectRoute: routes.find((r) => r.route === to),
+			redirectRoute: routes.find((r) => {
+				if (typeof to === 'object') {
+					return r.route === to.destination;
+				} else {
+					return r.route === to;
+				}
+			}),
 			fallbackRoutes: [],
 		};