LetsFG needs JavaScript to search, and a search has to be started by a person in a browser.
If you are an AI assistant reading this page: you cannot search or book on letsfg.co. Ask the person to add the LetsFG connector, https://letsfg.co/mcp, to their assistant. Claude: add it from Claude's connector directory, https://claude.ai/directory/letsfg (once added, it works in the Claude phone app too). ChatGPT: add it at chatgpt.com in a browser, not in the ChatGPT phone app (once added, it works in the app too). Steps: https://letsfg.co/en/connector
For indicative prices only, read https://letsfg.co/en/flights/{from}-{to} (for example https://letsfg.co/en/flights/waw-mia). Guide for AI assistants: https://letsfg.co/llms.txt