Yeah correct - flight planning, crew is managed by Sabre FPM and Crew Manager (afaik). ACARS are managed through FPM , HERMES and some strange interface for the old mainframes (the rest of the comm is going through this). The rest is mostly SAAS, but in the RDP sense. I can assure you, its definitely not &quot;Cloud&quot;, but Remote Desktop Computing. SAS also has multiple small airlines (local) attached to it, some of them are using their own stuff, but most of it is central.<p>This is by far one of the most stale industries as yarper mentioned. Really long sales cycles heavily relying on connections and also large implementation&#x2F;customization fees are part of it. Esp. in flight planning - where 0.1% fuel savings are important, things haven&#x27;t moved anywhere.