I gave up on airline frequent flier plans (except Southwest and Alaska) decades ago. The big US-flagged airlines suck (cramped planes, consistently late flights

I gave up on airline frequent flier plans (except Southwest and Alaska) decades ago. The big US-flagged airlines suck (cramped planes, consistently late flights, extra fees, treating customers like shit) and their FF plans suck too (expiring miles, too many restrictions on when you can fly). Southwest and Alaska are a different story; they're still trying to compete. But the majors are so terrible I feel the opposite of loyalty toward them.