Open source alternatives to Google Flights

One project on starwire does the same job. Ranked by how much of what Google Flights does each one covers, read from its README and website. Ties go to the most active.

What Google Flights does

  1. Search and compare flight farescore
  2. Price tracking and alertscore
  3. Flexible date and price calendar
  4. Explore map of destinations
  5. Filters for stops, airlines and times
  6. Book through airlines

Each dot in the table is one job, in this order. Square dots are core jobs and count double. Full means yes, half means partly. "See the evidence" under a project shows the line behind each one. Coverage is what a project documents, not how well it works or how hard it is to move to. How we score this

ProjectCoversStarsCommits, 12 weeksLast releaseClosed vs openedSetupLicense
FareBotSelf-hosted Telegram bot that tracks flight fares and alerts on price drops Same job, different way69%48+5
57
7 days agoToo few Needs a server MIT
Covers all 2 core jobs. Partly: Flexible date and price calendar; Explore map of destinations; Filters for stops, airlines and times. Not shown: Book through airlines.See the evidence
  • Search and compare flight farescoreYesfinds the cheapest flights for a date or a date range
  • Price tracking and alertscoreYesmessages you when it drops under your budget
  • Flexible date and price calendarPartlyfinds the cheapest flights for a date or a date range
  • Explore map of destinationsPartlysearches every destination in a region
  • Filters for stops, airlines and timesPartly/search ATH LON 2026-09-01..2026-09-15 direct
  • Book through airlinesNot shownNeither the README nor the website mentions it.

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