I love Southwest too! Adding to the previous posters, you can also change your flight for no fee - if you find a cheaper flight or a better schedule after purchasing a flight, you can change it under the Travel Tools yourself, and receive a credit for a future flight. We just booked a one way for $109, the next day it went to $89, so I changed it and have a $120 credit to apply for the six of us whenever I book our return flight! So easy. And I like not having to pick your seats since most airlines charge extra for you to do so in advance. We picked seats on Airtran last year, didn't pay extra, and ended up in the very back of the plane and the 8 of us got split up due to available seating. With Southwest, you pick where you sit once you board, and we've always been able to sit together. Just check in 24 hours in advance online, and you're good to go. When you return home from WDW, you can check in at the front desk if you don't have a computer, or at any guest service desk at any of the parks. Give them a try - the no fees for baggage is an added bonus!