diff --git a/src/features/flights-map/components/FlightsMapStartPage.test.tsx b/src/features/flights-map/components/FlightsMapStartPage.test.tsx
index b61bae02..012be519 100644
--- a/src/features/flights-map/components/FlightsMapStartPage.test.tsx
+++ b/src/features/flights-map/components/FlightsMapStartPage.test.tsx
@@ -10,6 +10,7 @@ import { transformDictionaries } from "@/shared/dictionaries/index.js";
 import type { IDictionaries, IRawDictionaries } from "@/shared/dictionaries/index.js";
 import type {
   FlightsMapCalendarParams,
+  IFlightsMapFilterState,
   FlightsMapSearchParams,
 } from "../types.js";
 import {
@@ -383,6 +384,7 @@ describe("TZ §4.1.4 Table 7 breadcrumbs — Flight-Map pages (rows 1-3)", () =>
 describe("FlightsMapStartPage — C.4 integration", () => {
   beforeEach(() => {
     lastMapCanvasProps = null;
+    lastMapFilterProps = null;
     searchCalls.length = 0;
     dictState.dictionaries = buildDictionaries({
       regions: [],
@@ -513,6 +515,33 @@ describe("FlightsMapStartPage — C.4 integration", () => {
     const last = [...searchCalls].reverse().find((p) => p?.departure && p?.arrival);
     expect(last?.connections).toBe(1);
   });
+
+  it("keeps transfer-only toggle off after the user disables auto-fallback", () => {
+    searchState.routes = [];
+    render(<FlightsMapStartPage />);
+    act(() => {
+      (lastMapCanvasProps!["onMarkerClick"] as (id: string) => void)("MOW");
+    });
+    act(() => {
+      (lastMapCanvasProps!["onMarkerClick"] as (id: string) => void)("LED");
+    });
+
+    const autoFallbackValue = lastMapFilterProps!["value"] as IFlightsMapFilterState;
+    expect(autoFallbackValue.connections).toBe(true);
+
+    act(() => {
+      (lastMapFilterProps!["onChange"] as (state: IFlightsMapFilterState) => void)({
+        ...autoFallbackValue,
+        connections: false,
+      });
+    });
+
+    const userValue = lastMapFilterProps!["value"] as IFlightsMapFilterState;
+    expect(userValue.connections).toBe(false);
+
+    const last = [...searchCalls].reverse().find((p) => p?.departure && p?.arrival);
+    expect(last?.connections).toBe(0);
+  });
 });
 
 // ---------------------------------------------------------------------------
diff --git a/src/features/flights-map/components/FlightsMapStartPage.tsx b/src/features/flights-map/components/FlightsMapStartPage.tsx
index 0d063571..25f6073a 100644
--- a/src/features/flights-map/components/FlightsMapStartPage.tsx
+++ b/src/features/flights-map/components/FlightsMapStartPage.tsx
@@ -161,6 +161,8 @@ export const FlightsMapStartPage: FC<FlightsMapStartPageProps> = ({
   const [effectiveConnections, setEffectiveConnections] = useState<0 | 1>(
     filterState.connections ? 1 : 0,
   );
+  const [connectionsFallbackSuppressed, setConnectionsFallbackSuppressed] =
+    useState(false);
 
   const persistFilterState = useCallback((newState: IFlightsMapFilterState) => {
     setFilterState(newState);
@@ -225,6 +227,7 @@ export const FlightsMapStartPage: FC<FlightsMapStartPageProps> = ({
   useEffect(() => {
     if (loading || error) return;
     if (effectiveConnections !== 0) return;
+    if (connectionsFallbackSuppressed) return;
     if (!filterState.departure || !filterState.arrival) return;
     if (routes.length > 0) return;
     setEffectiveConnections(1);
@@ -232,6 +235,7 @@ export const FlightsMapStartPage: FC<FlightsMapStartPageProps> = ({
     loading,
     error,
     effectiveConnections,
+    connectionsFallbackSuppressed,
     filterState.departure,
     filterState.arrival,
     routes,
@@ -239,14 +243,43 @@ export const FlightsMapStartPage: FC<FlightsMapStartPageProps> = ({
 
   // Reflect fallback in the UI toggle once.
   useEffect(() => {
-    if (filterState.arrival && effectiveConnections === 1 && !filterState.connections) {
+    if (
+      filterState.arrival &&
+      effectiveConnections === 1 &&
+      !filterState.connections &&
+      !connectionsFallbackSuppressed
+    ) {
       setFilterState((prev) => ({ ...prev, connections: true }));
     }
-  }, [effectiveConnections, filterState.arrival, filterState.connections]);
+  }, [
+    effectiveConnections,
+    filterState.arrival,
+    filterState.connections,
+    connectionsFallbackSuppressed,
+  ]);
 
   const handleFilterChange = useCallback((newState: IFlightsMapFilterState) => {
+    const sameRoute =
+      newState.departure === filterState.departure &&
+      newState.arrival === filterState.arrival;
+    const turnedConnectionsOff =
+      sameRoute && filterState.connections && !newState.connections;
+
+    setConnectionsFallbackSuppressed(
+      turnedConnectionsOff
+        ? true
+        : sameRoute && !newState.connections
+          ? connectionsFallbackSuppressed
+          : false,
+    );
     persistFilterState(newState);
-  }, [persistFilterState]);
+  }, [
+    connectionsFallbackSuppressed,
+    filterState.arrival,
+    filterState.connections,
+    filterState.departure,
+    persistFilterState,
+  ]);
 
   const handleMarkerClick = useCallback(
     (markerId: string) => {
diff --git a/tests/e2e/flights-map.spec.ts b/tests/e2e/flights-map.spec.ts
index 675f9c63..f854a8b7 100644
--- a/tests/e2e/flights-map.spec.ts
+++ b/tests/e2e/flights-map.spec.ts
@@ -1,11 +1,73 @@
 import { test, expect } from "./fixtures/console-gate";
+import {
+  routeAppSettingsFixture,
+  routeDictionaryFixtures,
+} from "./helpers/api-fixtures";
+
+async function routeFlightsMapTransferOnlyFixtures(
+  page: import("@playwright/test").Page,
+): Promise<void> {
+  await routeAppSettingsFixture(page);
+  await routeDictionaryFixtures(page);
+
+  await page.route("**/api/flights/1/*/destinations?**", async (route) => {
+    const url = new URL(route.request().url());
+    const departure = url.searchParams.get("departure");
+    const arrival = url.searchParams.get("arrival");
+    const connections = url.searchParams.get("connections");
+
+    const hasTransferRoute =
+      departure === "LED" && arrival === "MLE" && connections === "1";
+
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        data: {
+          routes: hasTransferRoute
+            ? [{ route: ["LED", "SVO", "MLE"], isDirect: false }]
+            : [],
+        },
+      }),
+    });
+  });
+
+  await page.route("**/api/flights/v1/*/days/**/flights-map/", (route) =>
+    route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({ days: "1".repeat(200) }),
+    }),
+  );
+
+  await page.route("**/map/api/tile/**", (route) =>
+    route.fulfill({
+      status: 200,
+      contentType: "image/gif",
+      body: Buffer.from("R0lGODlhAQABAAAAACw=", "base64"),
+    }),
+  );
+}
+
+async function selectCity(
+  page: import("@playwright/test").Page,
+  inputTestId: string,
+  query: string,
+  optionTestId: string,
+): Promise<void> {
+  const input = page.getByTestId(inputTestId).locator("input");
+  await input.click();
+  await input.fill(query);
+  await expect(page.getByTestId(optionTestId)).toBeVisible({ timeout: 10000 });
+  await page.getByTestId(optionTestId).click();
+}
 
 test.describe("Flights Map", () => {
   test("/ru/flights-map renders or shows feature-flag disabled message", async ({
     page,
     consoleMessages,
   }) => {
-    await page.goto("/ru/flights-map");
+    await page.goto("/ru-ru/flights-map");
     await page.waitForLoadState("domcontentloaded");
 
     // Either the map page renders or the feature-flag-disabled fallback shows
@@ -14,4 +76,31 @@ test.describe("Flights Map", () => {
 
     await expect(mapStart.or(mapDisabled)).toBeVisible({ timeout: 10000 });
   });
+
+  test("transfer-only checkbox can be switched off after auto-fallback", async ({
+    page,
+    consoleMessages,
+  }) => {
+    await routeFlightsMapTransferOnlyFixtures(page);
+
+    await page.goto("/ru-ru/flights-map");
+    await expect(page.getByTestId("flights-map-start")).toBeVisible();
+
+    await selectCity(page, "fm-departure-input", "Санкт", "city-suggestion-LED");
+    await selectCity(page, "fm-arrival-input", "Мале", "city-suggestion-MLE");
+
+    const transferToggle = page.getByTestId("fm-connections-toggle");
+    const transferLabel = page.getByText("Показать только рейсы с пересадкой", {
+      exact: true,
+    });
+    await expect(transferToggle).toBeEnabled();
+    await expect(transferToggle).toBeChecked({ timeout: 10000 });
+
+    await transferLabel.click();
+    await expect(transferToggle).not.toBeChecked();
+    await page.waitForLoadState("networkidle", { timeout: 5000 }).catch(() => {});
+    await expect(transferToggle).not.toBeChecked();
+
+    expect(consoleMessages).toEqual([]);
+  });
 });
diff --git a/tests/e2e/smoke.spec.ts b/tests/e2e/smoke.spec.ts
index 35870bed..1f90f314 100644
--- a/tests/e2e/smoke.spec.ts
+++ b/tests/e2e/smoke.spec.ts
@@ -1,7 +1,14 @@
 import { test, expect } from "./fixtures/console-gate";
+import {
+  routeDictionaryFixtures,
+  routeOnlineboardRouteFixtures,
+} from "./helpers/api-fixtures";
 
 test.describe("Smoke tests", () => {
   test("root / redirects to /ru/onlineboard", async ({ page, consoleMessages }) => {
+    await routeDictionaryFixtures(page);
+    await routeOnlineboardRouteFixtures(page);
+
     await page.goto("/");
     await page.waitForLoadState("domcontentloaded");
 
@@ -9,8 +16,8 @@ test.describe("Smoke tests", () => {
     // Depending on SSR/CSR mode, this may be a server 302 or a client-side
     // navigation. Wait up to 15s for either outcome.
     try {
-      await page.waitForURL("**/ru/onlineboard", { timeout: 15000 });
-      expect(page.url()).toContain("/ru/onlineboard");
+      await page.waitForURL(/\/ru(?:-ru)?\/onlineboard$/, { timeout: 15000 });
+      expect(page.url()).toMatch(/\/ru(?:-ru)?\/onlineboard$/);
     } catch {
       // If the redirect doesn't fire (e.g. loader not invoked in dev SSR mode),
       // verify the page at least rendered the online board content.
@@ -54,6 +61,9 @@ test.describe("Smoke tests", () => {
     page,
     consoleMessages,
   }) => {
+    await routeDictionaryFixtures(page);
+    await routeOnlineboardRouteFixtures(page);
+
     await page.goto("/ru-en/onlineboard?_preferredLanguage=en&_preferredLocale=ruh");
     await page.waitForLoadState("domcontentloaded");