I was there last week & I have 2 words for you: carry-on. Lines to check baggage were horrendous @ southwest. If you can carry-on, the security lines only took about 10 minutes & since you can't check in for SW more than an hour ahead, there's no point in being early. I'd call first as tons of flights were running late. If you are there too early, you might be tempted to play those no-pay-out slots at the airport.