Watch a flight fare and tell me when it drops

A daily fare check on your route and dates. A message only when the fare falls below your limit.

  • On a schedule: Every day at 7:00

What it does

The task

Search Google Flights, Skyscanner and Kayak for return flights from origin to destination on these dates: dates. Count only flights with at most 1 stop and a checked bag in the price. Record the lowest fare and the 3 cheapest flights, and compare them with the last run. Send me a message only when the lowest fare is below target price or 8% lower than at the last run, with the old fare, the new fare, the flight times and the link. Do not book anything.

  • It works in Google Flights, Skyscanner and Kayak, in the workspace you pick, and signs in with passwords from your Cuiar vault.
  • As a routine it runs every day at 7:00 (cron 0 7 * * *).

What you give it

BlankWhat to giveExample
originThe city or airport you leave fromBerlin (BER)
destinationThe city or airport you fly toLisbon (LIS)
datesThe day you leave and the day you come backLeave 18 December, return 2 January
target priceThe fare for each person that you would pay230 EUR

What you get back

An example run with the example values above. Your run uses your own data.

Fare drop: Berlin to Lisbon, 18 Dec to 2 Jan, with a checked bag

Lowest fare: 214 EUR for each person, 249 EUR at the last run (14% lower). Your limit: 230 EUR

1. TAP Air Portugal, nonstop, out 10:05 to 12:50, back 13:40 to 18:15214 EURlink
2. easyJet, nonstop, out 9:20 to 12:05, back 12:55 to 17:25231 EURlink
3. Lufthansa via Frankfurt, out 11:15 to 15:20, back 14:25 to 20:40246 EURlink

Run it in Cuiar

  1. 01

    Open it

    Click Use in Cuiar on this page. The side panel opens with the task in the composer.

  2. 02

    Fill in 4 blanks

    Type origin, destination, dates and target price. Tab moves to the next blank.

  3. 03

    Run it, then repeat it

    Run sends it once. To run it every day at 7:00, make a routine on cuiar.com/routines or with the CLI below.

As a routine, from the terminal

cuiar routines create "Watch a flight fare and tell me when it drops" --schedule "0 7 * * *" --time-zone Europe/Berlin \
  "Search Google Flights, Skyscanner and Kayak for return flights from Berlin (BER) to Lisbon (LIS) on these dates: Leave 18 December, return 2 January. Count only flights with at most 1 stop and a checked bag in the price. Record the lowest fare and the 3 cheapest flights, and compare them with the last run. Send me a message only when the lowest fare is below 230 EUR or 8% lower than at the last run, with the old fare, the new fare, the flight times and the link. Do not book anything."

Run it from your AI agent

Claude Code, Codex, Cursor and other MCP clients reach Cuiar at https://mcp.cuiar.com/mcp. Add the server one time, then ask for the task in plain words, or call create_routine yourself.

1. Add Cuiar to Claude Code

claude mcp add --transport http cuiar https://mcp.cuiar.com/mcp

2. Ask your agent

Use the Cuiar tool create_routine to run my "Watch a flight fare and tell me when it drops" template with origin = Berlin (BER); destination = Lisbon (LIS); dates = Leave 18 December, return 2 January; target price = 230 EUR.

Setup for other agents: AI agents.

The tool call

{
  "name": "create_routine",
  "arguments": {
    "name": "Watch a flight fare and tell me when it drops",
    "task": "Search Google Flights, Skyscanner and Kayak for return flights from Berlin (BER) to Lisbon (LIS) on these dates: Leave 18 December, return 2 January. Count only flights with at most 1 stop and a checked bag in the price. Record the lowest fare and the 3 cheapest flights, and compare them with the last run. Send me a message only when the lowest fare is below 230 EUR or 8% lower than at the last run, with the old fare, the new fare, the flight times and the link. Do not book anything.",
    "schedule": "0 7 * * *",
    "time_zone": "Europe/Berlin"
  }
}
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