We use Delta and Southwest. I haven't been too happy with Delta lately because they always seem to change your flight times after you have already booked. Our April flight originally was for 220pm, it was moved to 327pm then again to 347pm. I called and was able to switch to the 710am flight with no charge because they changed the flight time over an hour from my original time.
Our February flight was moved up an hour as well. Also it seems like Delta is always late leaving Orlando, I don't think I've ever departed when I was supposed to with Delta. I do prefer Southwest because I haven't had those issues with them, but I usually just suck it up and go with the cheaper flight.
). I've been on Southwest flights that have arrived at my departing airport late - but don't recall if we left late or on time - and I've been on SW flights that have arrived at my connecting airport after my connecting flight was scheduled to leave. So that's not a situation in which Southwest never finds itself.
I'm doing Delta this year. It was among the cheapest options & I stupidly thought it came with amenities. Ooops! It's an MD-88 with absolutely NOTHING for entertainment. Which is no big deal since it's absolutely fantastic that entertainment in the sky even exists. I would go with Jet Blue wherever it's available... as long as the price is right. I'd be willing to pay a little bit more for the perks on JB. You get in-flight entertainment and better luggage deals. If you are able to find a nonstop JB flight then you will be a very happy traveler! I still hope Delta works out for myself and anyone else flying with them!!!