n8n Flight Price Alerts: Google Flights Cheapest Day to Fly → Telegram

Get the Cheapest Google Flights Day Automatically — Delivered to Telegram

This n8n workflow checks Google Flights every morning, compares prices across the next 14 departure days, finds the cheapest day to fly, and sends a Telegram digest with the three cheapest dates and a link to the results. If today is not a worthwhile drop (based on your threshold), it skips the alert.

What this workflow does

• Runs daily at 07:00 via an n8n schedule trigger.
• Prices the route on Google Flights by calling the Apify “Flight Price Tracker” actor using a core HTTP Request (run-sync) endpoint.
• For each of the next 14 departure days, it receives one fare row per day (the cheapest itinerary for that date).
• Finds the cheapest day by selecting the lowest fare across those dates.
• Compares with yesterday’s run using n8n workflow static data.
• Applies your threshold: with threshold = 0 it sends daily; with threshold = 5 it only sends when the drop is ≥ 5%.
• Sends a Telegram message containing the three cheapest dates and a link to the result page.
• Skips today (NoOp) when no meaningful drop meets your threshold.

Use cases

• Flexible travelers who want a reliable “deal newsletter” without manually checking Google Flights.
• Travel bloggers who monitor multiple route/date windows and publish price drops.
• Deal hunters comparing the cheapest day to fly for routes like LIS → LHR.

Technical details

• Schedule: daily at 07:00
• Apify integration: calls Flight Price Tracker actor through HTTP Request using Header Auth (Authorization: Bearer <your Apify token>)
• Processing logic: Code node selects the lowest fare and builds message and top3
• Alert control: IF node applies the threshold; NoOp skips
• Delivery: Telegram Bot sends the digest

Setup (quick)

• Create an Apify credential named Apify Header Auth with Authorization / Bearer <token>.
• In Run Google Flights, edit routes (e.g., "LIS-LHR"), departDate, and days: 14.
• Connect your Telegram Bot and set the chat id in Send Telegram.