I stuck in airport for more than 30 hours just from SFO to UVa. How do you expect all the airlines to have freemium model with so much delay and flight cancelin

I stuck in airport for more than 30 hours just from SFO to UVa. How do you expect all the airlines to have freemium model with so much delay and flight canceling? (United has extra leg space option, but what if your flight canceled?)