diff --git a/.changeset/expo-use-oauth-missing-redirect-url.md b/.changeset/expo-use-oauth-missing-redirect-url.md
new file mode 100644
index 00000000000..2d2940a5191
--- /dev/null
+++ b/.changeset/expo-use-oauth-missing-redirect-url.md
@@ -0,0 +1,5 @@
+---
+'@clerk/expo': patch
+---
+
+Fix the deprecated `useOAuth()` hook crashing when the sign-in attempt has no external verification redirect URL. It now throws a Clerk error, matching `useSSO()`.
diff --git a/packages/expo/src/hooks/useOAuth.ts b/packages/expo/src/hooks/useOAuth.ts
index c3765f6299b..a1500e7a685 100644
--- a/packages/expo/src/hooks/useOAuth.ts
+++ b/packages/expo/src/hooks/useOAuth.ts
@@ -76,9 +76,11 @@ export function useOAuth(useOAuthParams: UseOAuthFlowParams) {
     await signIn.create({ strategy, redirectUrl: oauthRedirectUrl });
 
     const { externalVerificationRedirectURL } = signIn.firstFactorVerification;
+    if (!externalVerificationRedirectURL) {
+      return errorThrower.throw('Missing external verification redirect URL for OAuth flow');
+    }
 
     const authSessionResult = await WebBrowserModule.openAuthSessionAsync(
-      // @ts-ignore
       externalVerificationRedirectURL.toString(),
       oauthRedirectUrl,
     );