Something similar happened to me in CLT with US Air (now part of American) back in 2013. My family and I (3 of us) had 1st class tickets from a podunk east co

Something similar happened to me in CLT with US Air (now part of American) back in 2013. My family and I (3 of us) had 1st class tickets from a podunk east coast airport -> CLT -> SFO. They cancelled the 1st leg for their own reasons (not weather), and then rebooked us on another flight that got into CLT 40 mins later. We ran to the gate of our SFO flight, but they'd sold our first class tickets out from under us, and rebooked us on a flight 12 hours later. We felt that, as full fare, 1st class passengers, delayed for 12 hours by non-weather reason, we should have access to their lounge. Nope. I'm happy to say I never flew with them again.