GTFS Feeds
Planar Network maintain a number of tools for converting various industry standards to GTFS. Where possible we maintain a public version of the feed itself on transitfeeds.com.
Rail
Data is supplied and licensed by Rail Delivery Group and is available directly through their data portal.
Download the latest GTFS feed: gb-rail-latest.zip
Bus
Coming soon.
Flights
We have an open source tool to convert SSIM flight schedules to GTFS but no data with a license to public the data in GTFS format. If you would like us to host any feeds please get in touch.