Whentofly

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "whentofly": {
      "type": "http",
      "url": "https://whentofly.io/mcp?ch=mcp-registry"
    }
  }
}

2 tools

• search_locations

  Resolve a city or airport name or code before searching flights. Returns typed values such as city:SHA to search every catalog airport in Shanghai or airport:SHA for Hongqiao only. Pass the selected value unchanged to search_flights. Ask the traveler when multiple results are…

• search_flights

  Find the cheapest round-trip across a FLEXIBLE multi-month date window with a min/max trip length — e.g. "10–15 days, anytime Sep–Nov". Search a broad date window rather than requiring the traveler to choose exact dates first. First call the search_locations MCP tool for city or…

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