diff --git a/src/features/flights-map/components/FlightsMapFilter.test.tsx b/src/features/flights-map/components/FlightsMapFilter.test.tsx
new file mode 100644
index 00000000..c95127ed
--- /dev/null
+++ b/src/features/flights-map/components/FlightsMapFilter.test.tsx
@@ -0,0 +1,172 @@
+/**
+ * @vitest-environment jsdom
+ */
+
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { render } from "@testing-library/react";
+import { FlightsMapFilter } from "./FlightsMapFilter.js";
+import type { IFlightsMapFilterState } from "../types.js";
+
+// Capture props passed to PrimeReact Calendar.
+let lastCalendarProps: Record<string, unknown> | null = null;
+vi.mock("primereact/calendar", () => ({
+  Calendar: (props: Record<string, unknown>) => {
+    lastCalendarProps = props;
+    return <div data-testid="fm-date-input" />;
+  },
+}));
+
+// Stub PrimeReact AutoComplete so rendering is cheap.
+vi.mock("primereact/autocomplete", () => ({
+  AutoComplete: (props: Record<string, unknown>) => (
+    <input data-testid={props["data-testid"] as string} />
+  ),
+}));
+
+vi.mock("@/i18n/provider.js", () => ({
+  useTranslation: () => ({
+    t: (key: string) => key,
+    i18n: { language: "ru" },
+  }),
+}));
+
+vi.mock("@/shared/hooks/useCitySearch.js", () => ({
+  useCitySearch: () => ({ suggestions: [], search: vi.fn() }),
+}));
+
+function filter(
+  overrides: Partial<IFlightsMapFilterState> = {},
+): IFlightsMapFilterState {
+  return {
+    connections: false,
+    domestic: false,
+    international: false,
+    ...overrides,
+  };
+}
+
+function yyyymmdd(d: Date): string {
+  const y = d.getFullYear().toString();
+  const m = (d.getMonth() + 1).toString().padStart(2, "0");
+  const day = d.getDate().toString().padStart(2, "0");
+  return `${y}${m}${day}`;
+}
+
+function addDays(base: Date, n: number): Date {
+  const d = new Date(base);
+  d.setDate(d.getDate() + n);
+  d.setHours(0, 0, 0, 0);
+  return d;
+}
+
+describe("FlightsMapFilter — Calendar wiring", () => {
+  beforeEach(() => {
+    lastCalendarProps = null;
+  });
+
+  it("passes minDate and maxDate to Calendar", () => {
+    const onChange = vi.fn();
+    render(<FlightsMapFilter value={filter()} onChange={onChange} />);
+
+    const min = lastCalendarProps!["minDate"] as Date;
+    const max = lastCalendarProps!["maxDate"] as Date;
+
+    const today = new Date();
+    today.setHours(0, 0, 0, 0);
+    const expectedMin = addDays(today, -1);
+    const expectedMax = new Date(today);
+    expectedMax.setMonth(expectedMax.getMonth() + 6);
+
+    expect(min.getTime()).toBe(expectedMin.getTime());
+    expect(max.getTime()).toBe(expectedMax.getTime());
+  });
+
+  it("disables every date when availableDays is empty", () => {
+    const onChange = vi.fn();
+    render(
+      <FlightsMapFilter value={filter()} availableDays={[]} onChange={onChange} />,
+    );
+
+    const disabled = lastCalendarProps!["disabledDates"] as Date[];
+    expect(disabled.length).toBeGreaterThan(180);
+  });
+
+  it("excludes available days from disabledDates", () => {
+    const onChange = vi.fn();
+    const today = new Date();
+    today.setHours(0, 0, 0, 0);
+    const plusTwo = addDays(today, 2);
+
+    render(
+      <FlightsMapFilter
+        value={filter()}
+        availableDays={[yyyymmdd(plusTwo)]}
+        onChange={onChange}
+      />,
+    );
+
+    const disabled = lastCalendarProps!["disabledDates"] as Date[];
+    const contains = disabled.some((d) => {
+      const x = new Date(d);
+      x.setHours(0, 0, 0, 0);
+      return x.getTime() === plusTwo.getTime();
+    });
+    expect(contains).toBe(false);
+  });
+
+  it("snaps a disabled value.date forward to the next available day", () => {
+    const onChange = vi.fn();
+    const today = new Date();
+    today.setHours(0, 0, 0, 0);
+    const plusOne = addDays(today, 1);
+    const plusTwo = addDays(today, 2);
+
+    render(
+      <FlightsMapFilter
+        value={filter({ date: yyyymmdd(plusOne) })}
+        availableDays={[yyyymmdd(plusTwo)]}
+        onChange={onChange}
+      />,
+    );
+
+    expect(onChange).toHaveBeenCalled();
+    const called = onChange.mock.calls[0]![0] as IFlightsMapFilterState;
+    expect(called.date).toBe(yyyymmdd(plusTwo));
+  });
+
+  it("clears value.date when no enabled date exists in the window", () => {
+    const onChange = vi.fn();
+    const today = new Date();
+    today.setHours(0, 0, 0, 0);
+    const plusOne = addDays(today, 1);
+
+    render(
+      <FlightsMapFilter
+        value={filter({ date: yyyymmdd(plusOne) })}
+        availableDays={[]}
+        onChange={onChange}
+      />,
+    );
+
+    expect(onChange).toHaveBeenCalled();
+    const called = onChange.mock.calls[0]![0] as IFlightsMapFilterState;
+    expect(called.date).toBeUndefined();
+  });
+
+  it("does not snap when the current date is already enabled", () => {
+    const onChange = vi.fn();
+    const today = new Date();
+    today.setHours(0, 0, 0, 0);
+    const plusTwo = addDays(today, 2);
+
+    render(
+      <FlightsMapFilter
+        value={filter({ date: yyyymmdd(plusTwo) })}
+        availableDays={[yyyymmdd(plusTwo)]}
+        onChange={onChange}
+      />,
+    );
+
+    expect(onChange).not.toHaveBeenCalled();
+  });
+});