When we made plans to fly to Denver
for the western wear market, I checked several airlines and also found SW to be the cheapest. You’re right, they don’t offer frills but they get you from point a to point b. We took advantage of a web only special and got there for $99 each one way … turning it into $198 round trip each, plus just a little in airline fees.
Sometimes the fares may be close at other airlines but the baggage fees are through the roof. That is a big deal to us because there is no way around it. Plus it doesn’t help that we are heavy packers. LOL